Archrock Partners, L.P. - FORM 10-K

Archrock Partners, L.P. - FORM 10-K - February 23, 2017

Attached files

Attached files

Archrock Partners, L.P. Reports

file	filename
EX-31.1 - EXHIBIT 31.1 CEO SECTION 302 SOX CERTIFICATION - Archrock Partners, L.P.	aplp-ex311x20161231.htm
EX-32.2 - EXHIBIT 32.2 CFO SECTION 906 SOX CERTIFICATION - Archrock Partners, L.P.	aplp-ex322x20161231.htm
EX-32.1 - EXHIBIT 32.1 CEO SECTION 906 SOX CERTIFICATION - Archrock Partners, L.P.	aplp-ex321x20161231.htm
EX-31.2 - EXHIBIT 31.2 CFO SECTION 302 SOX CERTIFICATION - Archrock Partners, L.P.	aplp-ex312x20161231.htm
EX-23.1 - EXHIBIT 23.1 CONSENT INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM - Archrock Partners, L.P.	aplp-ex231x20161231.htm
EX-21.1 - EXHIBIT 21.1 SUBSIDIARY LISTING - Archrock Partners, L.P.	aplp-ex211x20161231.htm
EX-10.2 - EXHIBIT 10.2 FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED OMNIBUS AGREEMENT - Archrock Partners, L.P.	aplp-ex102x20161231.htm

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________________________________________

Form 10-K

(Mark One)



x	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2016



o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file no.: 001-33078

Archrock Partners, L.P.

(Exact name of registrant as specified in its charter)



Delaware		22-3935108
(State or other jurisdiction of		(I.R.S. Employer
incorporation or organization)		Identification No.)

16666 Northchase Drive, Houston, Texas		77060
(Address of principal executive offices)		(Zip code)

(281) 836-8000

(Registrant’s telephone number, including area code)

Securities Registered Pursuant to Section 12(b) of the Act:



Title of each class		Name of each exchange on which registered
Common Units representing limited partner interests		NASDAQ Global Select Market

Securities Registered Pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes o No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 (d) of the Act. Yes o No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.



Large accelerated filer o		Accelerated filer x

Non-accelerated filer o		Smaller reporting company o
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x

The aggregate market value of common units held by non-affiliates of the registrant (treating directors and executive officers of the registrant’s general partner and holders of 5% or more of the common units outstanding, for this purpose, as if they were affiliates of the registrant) as of June 30, 2016, the last business day of the registrant’s most recently completed second fiscal quarter, was $342,830,918. This calculation does not reflect a determination that such persons are affiliates for any other purpose.

As of February 16, 2017, there were 65,519,860 common units outstanding.

_______________________________________________________________

DOCUMENTS INCORPORATED BY REFERENCE: NONE

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		Page
PART I
Item 1.	Business	2
Item 1A.	Risk Factors	16
Item 1B.	Unresolved Staff Comments	36
Item 2.	Properties	36
Item 3.	Legal Proceedings	36
Item 4.	Mine Safety Disclosures	36

PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	37
Item 6.	Selected Financial Data	39
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	43
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	60
Item 8.	Financial Statements and Supplementary Data	61
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	61
Item 9A.	Controls and Procedures	61
Item 9B.	Other Information	63

PART III
Item 10.	Directors, Executive Officers and Corporate Governance	63
Item 11.	Executive Compensation	68
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	89
Item 13.	Certain Relationships and Related Transactions and Director Independence	91
Item 14.	Principal Accountant Fees and Services	95

PART IV
Item 15.	Exhibits and Financial Statement Schedules	95
	SIGNATURES	99

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PART I

DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains “forward-looking statements.” All statements other than statements of historical fact contained in this Annual Report on Form 10-K are forward-looking statements, including, without limitation, statements regarding Archrock Partners, L.P.’s (together with its subsidiaries, “we,” “our,” “us” or “the Partnership”) business growth strategy and projected costs; future financial position; the sufficiency of available cash flows to fund continuing operations and make cash distributions; the expected amount of our capital expenditures; anticipated cost savings; future revenue, gross margin and other financial or operational measures related to our business; the future value of our equipment; and plans and objectives of our management for our future operations. You can identify many of these statements by looking for words such as “believe,” “expect,” “intend,” “project,” “anticipate,” “estimate,” “will continue” or similar words or the negative thereof.

Known material factors that could cause our actual results to differ from those in these forward-looking statements are described below, in Part I, Item 1A (“Risk Factors”) and Part II, Item 7 (“Management’s Discussion and Analysis of Financial Condition and Results of Operations”) of this Annual Report on Form 10-K. Important factors that could cause our actual results to differ materially from the expectations reflected in these forward-looking statements include, among other things:


•	conditions in the oil and natural gas industry, including a sustained decrease in the level of supply or demand for oil or natural gas or a sustained low price of oil or natural gas;


•	our reduced profit margins or the loss of market share resulting from competition or the introduction of competing technologies by other companies;


•	our dependence on Archrock to provide personnel and services, including its ability to hire, train and retain key employees and to cost effectively perform the services necessary to conduct our business;


•	changes in economic or political conditions, including terrorism and legislative changes;


•	the inherent risks associated with our operations, such as equipment defects, impairments, malfunctions and natural disasters;


•	loss of our status as a partnership for United States of America (“U.S.”) federal income tax purposes;


•	the risk that counterparties will not perform their obligations under our financial instruments;


•	the financial condition of our customers;


•	our ability to implement certain business and financial objectives, such as:


•	growing our asset base and asset utilization;


•	winning profitable new business;


•	integrating acquired businesses;


•	generating sufficient cash; and


•	accessing the capital markets at an acceptable cost;


•	liability related to the provision of our services;


•	changes in governmental safety, health, environmental or other regulations, which could require us to make significant expenditures; and


•	our level of indebtedness and ability to fund our business.

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All forward-looking statements included in this Annual Report on Form 10-K are based on information available to us on the date of this Annual Report on Form 10-K. Except as required by law, we undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. All subsequent written and oral forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the cautionary statements contained throughout this Annual Report on Form 10-K.

Item 1. Business

General

We are a Delaware limited partnership formed in June 2006 and are the U.S. market leader in the full-service natural gas compression industry. As of December 31, 2016, public unitholders held a 55% ownership interest in us and Archrock, Inc. (individually, and together with its wholly-owned subsidiaries, “Archrock”) owned our remaining equity interests, including our general partner interest and all of the incentive distribution rights. Archrock General Partner, L.P., our general partner, is an indirect, wholly-owned subsidiary of Archrock and has sole responsibility for conducting our business and for managing our operations, which are conducted through our wholly-owned limited liability company, Archrock Partners Operating LLC. Because our general partner is a limited partnership, its general partner, Archrock GP LLC, conducts our business and operations. Archrock GP LLC’s board of directors and officers, which we sometimes refer to as our board of directors and our officers, make decisions on our behalf. All of those directors are elected by Archrock.

Our contract operations services primarily include designing, sourcing, owning, installing, operating, servicing, repairing and maintaining equipment to provide natural gas compression services to our customers. We monitor our customers’ compression services requirements over time and, as necessary, modify the level of services and related equipment we employ to address changing operating conditions. We only operate in one segment; see the Consolidated Financial Statements included in Part II, Item 8 (“Financial Statements”) of this Annual Report on Form 10-K for more information regarding our results of operations and financial condition.

We are a party to an omnibus agreement with Archrock, our general partner and others (as amended and/or restated, the “Omnibus Agreement”), which includes, among other things:


•	certain agreements not to compete between Archrock and its affiliates, on the one hand, and us and our affiliates, on the other hand;


•	Archrock’s obligation to provide all operational staff, corporate staff and support services reasonably necessary to operate our business and our obligation to reimburse Archrock for such services;


•	the terms under which we, Archrock, and our respective affiliates may transfer, exchange or lease compression equipment among one another;


•	Archrock’s grant to us of a license to use certain intellectual property, including our logo; and


•	Archrock’s and our obligations to indemnify each other for certain liabilities.

Our general partner does not receive any compensation for managing our business, but it is entitled to reimbursement of all direct and indirect expenses incurred on our behalf. Archrock and our general partner are also entitled to distributions on their limited partner interest and general partner interest, respectively and, if specified requirements are met, our general partner is entitled to distributions on its incentive distribution rights. During the period from January 1, 2016 through December 31, 2016, our general partner received $4.8 million in distributions on its incentive distribution rights. For further discussion of our cash distribution policy, see “Cash Distribution Policy” included in Part II, Item 5 (“Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities”) of this Annual Report on Form 10-K.

During each of the years ended December 31, 2016 and 2015, we acquired from Archrock contract operations service agreements and a fleet of compressor units used to provide compression services under those agreements (the 2016 acquisition is referred to as the “November 2016 Contract Operations Acquisition” and the 2015 acquisition is referred to as the “April 2015 Contract Operations Acquisition”).

On November 19, 2016, at the closing of the November 2016 Contract Operations Acquisition, we acquired from Archrock contract operations customer service agreements with 63 customers and a fleet of 262 compressor units used to provide compression services under those agreements, comprising approximately 147,000 horsepower, or approximately 4% (of then available

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horsepower) of the combined U.S. contract operations business of Archrock and us. Total consideration for the transaction was $85.0 million, excluding transaction costs. In connection with the acquisition, we issued approximately 5.5 million common units to Archrock and approximately 111,000 general partner units to our general partner.

On March 1, 2016, we completed an acquisition of contract operations customer service agreements with four customers and a fleet of 19 compressor units used to provide compression services under those agreements comprising approximately 23,000 horsepower. The $18.8 million purchase price was funded with $13.8 million in borrowings under our revolving credit facility, a non-cash exchange of 24 compressor units for $3.2 million, and the issuance of 257,000 common units for $1.8 million. In connection with this acquisition, we issued and sold 5,205 general partner units to our general partner so it could maintain its approximate 2% general partner interest in us. This acquisition is referred to as the “March 2016 Acquisition.”

On April 17, 2015, at the closing of the April 2015 Contract Operations Acquisition, we acquired from Archrock contract operations customer service agreements with 60 customers and a fleet of 238 compressor units used to provide compression services under those agreements, comprising approximately 148,000 horsepower, or 3% (of then available horsepower) of the combined contract operations business of Archrock and us. The acquired assets also included 179 compressor units, comprising approximately 66,000 horsepower, previously leased from Archrock to us. In connection with this acquisition, we issued approximately 4.0 million common units to Archrock and approximately 80,000 general partner units to our general partner. Based on the terms of the contribution, conveyance and assumption agreement relating to this acquisition, the common units and general partner units, including incentive distribution rights, we issued in connection with this acquisition were not entitled to receive a cash distribution relating to the quarter ended March 31, 2015.

Archrock Spin-off Transaction

On November 3, 2015, Exterran Holdings, Inc. completed the spin-off (the “Spin-off”) of its international contract operations, international aftermarket services and global fabrication businesses through the distribution of all of the outstanding shares of common stock of Exterran Corporation (“Exterran”). Upon the completion of the Spin-off, Exterran Holdings, Inc. was renamed “Archrock, Inc.” and, on November 4, 2015, the ticker symbol for Archrock’s common stock on the New York Stock Exchange was changed to “AROC.” Archrock continues to hold interests in us, which include the sole general partner interest and certain limited partner interests, as well as all of the incentive distribution rights. Effective on November 3, 2015, we were renamed “Archrock Partners, L.P.” and, on November 4, 2015, the ticker symbol for our common units on the Nasdaq Global Select Market was changed to “APLP.”

Exterran Holdings, Inc. completed an internal restructuring on November 3, 2015 in connection with the Spin-off which we believe, when combined with the sale or exchange of Partnership units during the 12 months prior to the Spin-off, resulted in a technical termination of the Partnership for U.S. federal income tax purposes on the date of the Spin-off. The technical termination did not affect our consolidated financial statements nor did it affect our classification as a partnership or otherwise affect the nature or extent of our “qualifying income” for U.S. federal income tax purposes. Our taxable year for all unitholders ended on November 3, 2015 and resulted in a deferral of depreciation deductions that were otherwise allowable in computing the taxable income of our unitholders. This deferral of depreciation deductions may have resulted in increased taxable income (or reduced taxable loss) to certain of our unitholders in 2015.

Contract Operations Services Overview

We provide comprehensive contract operations services, including the personnel, equipment, tools, materials and supplies to meet our customers’ natural gas compression needs. Based on the operating specifications at the customer’s location and the customer’s unique compression needs, these services include designing, sourcing, owning, installing, operating, servicing, repairing and maintaining equipment. When providing contract operations services, we work closely with a customer’s field service personnel so that the compression services can be adjusted to efficiently match changing characteristics of the natural gas reservoir and the natural gas produced. We routinely repackage or reconfigure a portion of our existing fleet to adapt to our customers’ compression services needs. We utilize both slow and high speed reciprocating compressors primarily driven by internal natural gas fired combustion engines. We also utilize rotary screw compressors for specialized applications.

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Our equipment is maintained in accordance with established maintenance schedules. These maintenance procedures are updated as technology changes and as Archrock develops new techniques and procedures. Because Archrock’s field technicians provide maintenance on substantially all of our contract operations equipment, they are familiar with the condition of our equipment and can readily identify potential problems. In our and Archrock’s experience, these maintenance procedures maximize equipment life and unit availability, minimize avoidable downtime and lower the overall maintenance expenditures over the equipment life. Generally, each of our compressor units undergoes a major overhaul once every four to eight years, depending on the type, size and utilization of the unit. If a unit requires maintenance or reconfiguration, we utilize Archrock’s maintenance personnel to service it as quickly as possible to meet our customers’ needs.

Our customers typically contract for our contract operations services on a site-by-site basis for a specific monthly service rate that is generally reduced if we fail to operate in accordance with the applicable contract requirements. Following the initial minimum term for our contract compression services, which is typically around twelve months, contract compression services generally continue on a month to month basis until terminated by either party with 30 days’ advance notice. Our customers generally are required to pay our monthly service fee even during periods of limited or disrupted natural gas flows, which enhances the stability and predictability of our cash flows. Additionally, because we typically do not take title to the natural gas we compress, and the natural gas we use as fuel for our compressors is supplied by our customers, we have limited direct exposure to commodity price fluctuations. See “General Terms of our Contract Operations Customer Service Agreements,” below, for a more detailed description.

We intend to continue to work with Archrock to manage our respective fleets as one pool of compression equipment from which we can each readily fulfill our respective customers’ service needs. When one of Archrock’s salespersons is advised of a new contract operations services opportunity allocable to us, he or she will obtain relevant information concerning the project, including natural gas flow, pressure and natural gas composition, and then review our and Archrock’s fleets for an available and appropriate compressor unit. In some instances, we may choose to purchase newly-fabricated equipment to fulfill our customers’ needs if no idle equipment is available in our fleet. Please read Part III, Item 13 (“Certain Relationships and Related Transactions and Director Independence”) of this Annual Report on Form 10-K for additional information regarding our ability to share or exchange compression equipment with Archrock.

The size and horsepower of our natural gas compressor fleet on December 31, 2016 is summarized in the following table:



Range of Horsepower Per Unit	Number of Units	Aggregate Horsepower (in thousands)	% of Horsepower
0-200	2,427	278	9	%
201-500	1,825	492	15	%
501-800	381	241	7	%
801-1,100	198	189	6	%
1,101-1,500	1,045	1,426	43	%
1,501 and over	333	664	20	%
Total⁽¹⁾	6,209	3,290	100	%


⁽¹⁾	Includes four compressor units, comprising approximately 1,000 horsepower, leased from Archrock and excludes six compressor units, comprising approximately 6,000 horsepower, leased to Archrock (see Note 4 (“Related Party Transactions”) to our Financial Statements).

Over the last several years, Archrock has undertaken efforts to standardize its compressor fleet around major components and key suppliers. Because a significant portion of our fleet consists of Archrock’s former fleet, we benefit from these efforts, as well. Standardization of our fleet:


•	enables us to minimize our fleet operating costs and maintenance capital requirements;


•	facilitates low-cost compressor resizing; and


•	allows us to develop improved technical proficiency in our maintenance and overhaul operations, which enables us to achieve high run-time rates while maintaining lower operating costs.

As mentioned above, pursuant to the Omnibus Agreement, Archrock provides us with all operational staff, corporate staff and support services necessary to run our business.

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Competitive Strengths

We believe we have the following key competitive strengths:

•

Our relationship with Archrock. Our relationship with Archrock and our access to its personnel, logistical capabilities, geographic scope and operational efficiencies allow us to provide a full complement of contract operations services. We and Archrock intend to continue to manage our respective compression fleets as one pool of compression equipment from which we can more easily fulfill our respective customers’ needs. This relationship also gives us an advantage in pursuing compression opportunities throughout the U.S. As of December 31, 2016, Archrock owned approximately 0.5 million horsepower of compression equipment, excluding the compression equipment owned by us, in its contract operations business. Archrock intends for us to be the primary long-term growth vehicle for its contract operations business.

•

Superior customer service. We believe we operate in a relationship-driven, service-intensive industry and therefore need to provide superior customer service. We believe that our regionally-based network, local presence, experience and in-depth knowledge of customers’ operating needs and growth plans enable us to respond to our customers’ needs and meet their evolving demands on a timely basis. In addition, we focus on achieving a high level of reliability for the services we provide in order to maximize our customers’ production levels. Our sales efforts concentrate on demonstrating our commitment to enhancing our customers’ cash flow through superior customer service.


•	Fee-based cash flows. We charge a fixed monthly fee for our contract operations services that our customers are generally required to pay, regardless of the volume of natural gas we compress in that month. We believe this fee structure reduces volatility and enhances our ability to generate relatively stable and predictable cash flows.

•

Large fleet in substantially all major U.S. producing regions. We operate in substantially all major oil and natural gas producing regions in the U.S. Our large fleet and numerous operating locations throughout the U.S., combined with our ability, as a result of our relationship with Archrock, to efficiently move equipment among producing regions, means that we are not dependent on production activity in any particular region. We believe our size, geographic scope and broad customer base provide us with improved operating expertise and business development opportunities.

Business Strategies

We intend to continue to capitalize on our competitive strengths to meet our customers’ needs through the following key strategies:

•

Leverage our relationship with Archrock. Our relationship with Archrock provides us numerous revenue and cost advantages, including the ability to access compression equipment, deploy that equipment in most of the major natural gas producing regions in the U.S. and provide maintenance and operational support on a more cost effective basis than we could without this relationship. Following the Spin-off, we believe that Archrock will be more focused on growing our contract operations business, increasing our operating efficiencies and enhancing our customer service.

•

Capitalize on the long-term fundamentals for the U.S. natural gas compression industry. We believe our ability to efficiently meet our customers’ evolving compression needs, our long-standing customer relationships and our large compressor fleet will enable us to capitalize on what we believe are favorable long-term fundamentals for the U.S. natural gas compression industry. These fundamentals include significant natural gas resources in the U.S., increased unconventional natural gas production, decreasing natural reservoir pressures, expected increased natural gas demand in the U.S. from growth in liquefied natural gas exports, exports of natural gas via pipeline to Mexico, power generation and industrial uses, and the continued need for compression services.


•	Lower costs and improve profitability. As the largest provider of natural gas compression services in the U.S., we intend to use our scale to achieve cost savings in our operations. We are also focused on increasing productivity and optimizing our processes. By making our systems and processes more efficient, we intend to lower our internal costs and improve our profitability over time.

•

Grow our business organically and through acquisitions. We plan to grow our business over time through the potential future acquisition of additional assets from compression providers and natural gas transporters or producers. We also plan to grow our business organically over the long term by adding new horsepower in key growth areas, including by providing compression services to producers of oil and natural gas from shale and liquids rich plays.

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Natural Gas Compression Industry Overview

Natural gas compression is a mechanical process whereby the pressure of a given volume of natural gas is increased to a desired higher pressure for transportation from one point to another. It is essential to the production and transportation of natural gas. Compression is typically required several times during the natural gas production and transportation cycle, including (i) at the wellhead, (ii) throughout gathering and distribution systems, (iii) into and out of processing and storage facilities and (iv) along intrastate and interstate pipelines.

•

Wellhead and Gathering Systems — Natural gas compression is used to transport natural gas from the wellhead through the gathering system. At some point during the life of natural gas wells, reservoir pressures typically fall below the line pressure of the natural gas gathering or pipeline system used to transport the natural gas to market. At that point, natural gas no longer naturally flows into the pipeline. Compression equipment is applied in both field and gathering systems to boost the pressure levels of the natural gas flowing from the well allowing it to be transported to market. Changes in pressure levels in natural gas fields require periodic changes to the size and/or type of on-site compression equipment. Additionally, compression is used to reinject natural gas into producing oil wells to maintain reservoir pressure and help lift liquids to the surface, which is known as secondary oil recovery or natural gas lift operations. Typically, these applications require low- to mid-range horsepower compression equipment located at or near the wellhead. Compression equipment is also used to increase the efficiency of a low-capacity natural gas field by providing a central compression point from which the natural gas can be produced and injected into a pipeline for transmission to facilities for further processing.

•

Pipeline Transportation Systems — Natural gas compression is used during the transportation of natural gas from the gathering systems to storage or the end user. Natural gas transported through a pipeline loses pressure over the length of the pipeline. Compression is staged along the pipeline to increase capacity and boost pressure to overcome the friction and hydrostatic losses inherent in normal operations. These pipeline applications generally require larger horsepower compression equipment (1,500 horsepower and higher).


•	Storage Facilities — Natural gas compression is used in natural gas storage projects for injection and withdrawals during the normal operational cycles of these facilities.


•	Processing Applications — Compressors may also be used in combination with natural gas production and processing equipment and to process natural gas into other marketable energy sources. In addition, compression services are used for compression applications in refineries and petrochemical plants.

Many natural gas producers, transporters and processors outsource their compression services due to the benefits and flexibility of contract compression. Changing well and pipeline pressures and conditions over the life of a well often require producers to reconfigure or replace their compressor units to optimize the well production or gathering system efficiency.

We believe outsourcing compression operations to compression service providers such as us offers customers:


•	the ability to efficiently meet their changing compression needs over time while limiting the underutilization of their owned compression equipment;


•	access to the compression service provider’s specialized personnel and technical skills, including engineers and field service and maintenance employees, which we believe generally leads to improved production rates and/or increased throughput;


•	the ability to increase their profitability by transporting or producing a higher volume of natural gas through decreased compression downtime and reduced operating, maintenance and equipment costs by allowing the compression service provider to efficiently manage their compression needs; and


•	the flexibility to deploy their capital on projects more directly related to their primary business by reducing their compression equipment and maintenance capital requirements.

We believe the U.S. natural gas compression services industry continues to have growth potential over time due to, among other things, increased natural gas production in the U.S. from unconventional sources and aging producing natural gas fields that will require more compression to continue producing the same volume of natural gas, and expected increased demand for natural gas in the U.S. for power generation, industrial uses and exports, including liquefied natural gas exports and exports of natural gas via pipeline to Mexico.

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Trends and Outlook

Our business environment and corresponding operating results are affected by the level of energy industry spending for the exploration, development and production of oil and natural gas reserves in the U.S. Spending by oil and natural gas exploration and production companies is dependent upon these companies’ forecasts regarding the expected future supply, demand and pricing of oil and natural gas products as well as their estimates of risk-adjusted costs to find, develop and produce reserves. For example, oil and natural gas exploration and development activity and the number of well completions typically decline when there is a significant reduction in oil and natural gas prices or significant instability in energy markets. Our revenue, earnings and financial position are affected by, among other things, market conditions that impact demand and pricing for natural gas compression, our customers’ decisions between using our services or our competitors’ services, our customers’ decisions regarding whether to own and operate the equipment themselves and the timing and consummation of any acquisition of additional contract operations customer service agreements and equipment from third parties. Although we believe our contract operations business is typically less impacted by commodity prices than certain other oil and natural gas service providers, changes in oil and natural gas exploration and production spending normally result in changes in demand for our services.

Natural gas consumption in the U.S. for the twelve months ended November 30, 2016 decreased by approximately 0.6% to approximately 27,223 billion cubic feet (“Bcf”) compared to approximately 27,395 Bcf for the twelve months ended November 30, 2015. The U.S. Energy Information Administration (“EIA”) forecasts that total U.S. natural gas consumption will increase by 0.4% in 2017 compared to 2016. The EIA estimates that the U.S. natural gas consumption level will be approximately 30 trillion cubic feet (“Tcf”) in 2040, or 15% of the projected worldwide total of approximately 203 Tcf.`

Natural gas marketed production in the U.S. for the twelve months ended November 30, 2016 decreased by approximately 1.2% to 28,380 Bcf compared to 28,725 Bcf for the twelve months ended November 30, 2015. The EIA forecasts that total U.S. natural gas marketed production will increase by 2% in 2017 compared to 2016. The EIA estimates that the U.S. natural gas production level will be approximately 35 Tcf in 2040, or 17% of the projected worldwide total of approximately 202 Tcf.

Historically, oil and natural gas prices and the level of drilling and exploration activity in the U.S. have been volatile. For example, the Henry Hub spot price for natural gas was $3.71 per million British thermal unit (“MMBtu”) at December 31, 2016, which was approximately 31% higher and 63% higher than prices at September 30, 2016 and December 31, 2015, respectively, and the U.S. natural gas liquid composite price was $5.45 per MMBtu for the month of November 2016, which was approximately 4% higher and 29% higher than prices for the months of September 2016 and December 2015, respectively. While prices at December 31, 2016 improved relative to the comparable periods above, lower natural gas and natural gas liquids prices during 2015 and 2016 as compared to 2014 prices caused many companies to reduce their natural gas drilling and production activities during 2015 and further reduce those activities during 2016 from their 2014 levels in select shale plays and in more mature and predominantly dry gas areas in the U.S., where we provide a significant amount of contract operations services. In addition, the West Texas Intermediate crude oil spot price was $53.75 per barrel at December 31, 2016, which was approximately 13% higher and 45% higher than prices at September 30, 2016 and December 31, 2015, respectively. While the price at December 31, 2016 improved relative to the comparable periods above, lower West Texas Intermediate crude oil prices during 2015 and 2016 as compared to 2014 prices resulted in a continued decrease in capital investment and in the number of new oil wells drilled by exploration and production companies in 2016 compared to 2015. Because we provide a significant amount of contract operations services related to the production of associated gas from oil wells and the use of gas lift to enhance production of oil from oil wells, our operations and our levels of operating horsepower are also impacted by crude oil drilling and production activity.

As a result of the reduction in capital spending and drilling activity by U.S. producers in 2016, we experienced a decline in operating horsepower and an increase in pricing pressure during 2016 compared to 2015, though we achieved improved contract operations gross margin percentage and lower selling, general and administrative expense in 2016 compared to 2015, attributable in part to our cost management efforts.

According to the Barclays 2017 Global E&P Spending Outlook, North America upstream spending is expected to increase by 27% in 2017. Due to the forecasted increase in customer spending in 2017, we anticipate horsepower returns will moderate during 2017 compared to 2016. We also anticipate investing more capital in new fleet units in 2017 than we did in 2016 to take advantage of expected improving market conditions during 2017. However, because compression service providers are a later cycle participant during improving markets, we anticipate any significant increase in the demand for our contract operations services will lag an increase in drilling activity. Also, given the operating horsepower declines and pricing pressure experienced in 2016, we expect to see a decline in our contract operations revenue in 2017 compared to 2016.

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Oil and Natural Gas Industry Cyclicality and Volatility

Changes in oil and natural gas exploration and production spending normally results in changes in demand for our services; however, we believe our contract operations business is typically less impacted by commodity prices than certain other oil and natural gas service providers because:


•	compression is necessary for natural gas to be delivered from the wellhead to end users;


•	the need for compression services and equipment has grown over time due to the increased production of natural gas, the natural pressure decline of natural gas producing basins and the increased percentage of natural gas production from unconventional sources; and


•	our contract operations business is tied primarily to oil and natural gas production and consumption, which are generally less cyclical in nature than exploration activities.

Because we typically do not take title to the natural gas we compress, and the natural gas we use as fuel for our compressors is supplied by our customers, our direct exposure to commodity price risk is further reduced.

Seasonal Fluctuations

Our results of operations have not historically reflected any material seasonal tendencies and we currently do not believe that seasonal fluctuations will have a material impact on us in the foreseeable future.

Customers

Our current customer base consists of companies engaged in various aspects of the oil and natural gas industry, including natural gas producers, processors, gatherers, transporters and storage providers. We have entered into preferred vendor arrangements with some of our customers that give us preferential consideration for the compression needs of these customers. In exchange, we provide these customers with enhanced product availability, product support and favorable pricing.

During the years ended December 31, 2016 and 2015, Williams Partners (formerly known as “Access”) accounted for approximately 17% and 16% of our revenue, respectively. During the year ended December 31, 2014, Access accounted for approximately 12% of our revenue. Access merged with Williams Partners, L.P. (“Williams Partners”), a publicly traded limited partnership controlled by the Williams Companies, Inc. (“Williams Parent”), in February 2015 and, on an as-combined basis, Access and Williams Partners would have accounted for approximately 15% of our consolidated revenue during the year ended December 31, 2014. Additionally, during the years ended December 31, 2016 and December 31, 2015, Anadarko Petroleum Corporation (“Anadarko”) accounted for approximately 10% and 10%, of our revenue, respectively. No other single customer accounted for more than 10% of our revenue during the years ended December 31, 2016, December 31, 2015, and December 31, 2014.

Sales and Marketing

Our marketing and client service functions are coordinated and performed by Archrock sales and field service personnel. Salespeople and field service personnel regularly visit our customers to ensure customer satisfaction, to determine customer needs as to services currently being provided and to ascertain potential future compression services requirements. This ongoing communication allows us to quickly identify and respond to customer requests.

General Terms of our Contract Operations Customer Service Agreements

The following discussion describes select material terms common to our standard contract operations service agreements. We typically enter into a master service agreement with each customer that sets forth the general terms and conditions of our services, and then enter into a separate supplemental service agreement for each distinct site at which we will provide contract operations services.

Term and Termination. Our customers typically contract for our contract operations services on a site-by-site basis. Following the initial minimum term for our contract compression services, which is typically around twelve months, contract compression services generally continue until terminated by either party with 30 days’ advance notice.

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Fees and Expenses. Our customers pay a fixed monthly fee for our contract operations services, which generally is based on expected natural gas volumes and pressures associated with a specific application. Our customers generally are required to pay our monthly fee even during periods of limited or disrupted natural gas flows. We are typically responsible for the costs and expenses associated with our compression equipment used to provide the contract operations services, other than fuel gas, which is provided by our customers.

Service Standards and Specifications. We provide contract operations services according to the particular specifications of each job, as set forth in the applicable contract. These are typically turn-key service contracts under which we supply all service and support and use our own compression equipment to provide the contract operations services as necessary for a particular application. In certain circumstances, if the availability of our services does not meet certain percentages specified in our contracts, our customers are generally entitled, upon request, to specified credits against our service fees.

Title; Risk of Loss. We own and retain title to or have an exclusive possessory interest in all compression equipment used to provide the contract operations services and we generally bear risk of loss for such equipment to the extent not caused by gas conditions, our customers’ acts or omissions or the failure or collapse of the customer’s over-water job site upon which we provide the contract operations services.

Insurance. Typically, both we and our customers are required to carry general liability, worker’s compensation, employers’ liability, automobile and excess liability insurance. Archrock insures our property and operations and is substantially self-insured for worker’s compensation, employer’s liability, property, auto liability, general liability and employee group health claims in view of the relatively high per-incident deductibles Archrock absorbs under its insurance arrangements for these risks.

Suppliers

Prior to the Spin-off, our sole supplier of newly-fabricated equipment was Archrock. On November 3, 2015, in connection with Archrock’s contribution of its global fabrication business to Exterran in the Spin-off, we entered into a supply agreement with Exterran under which, during the term of the agreement, we are required to purchase our requirements of newly-fabricated compression equipment from Exterran and its affiliates, subject to certain exceptions. Pursuant to the supply agreement, if we acquire a new business that is not party to a firm supply agreement, then we will use our commercially reasonable efforts to order such business’s newly fabricated compressor requirements from Exterran. If, however, the new business is already party to a firm supply agreement, then we may continue to order such equipment under that existing third-party supply agreement as long as orders for the succeeding twelve-month period do not exceed such business’s orders for the prior twelve-month period. We may also transfer, exchange or lease compression equipment with Archrock.

We rely on Exterran, who in turn relies on a limited number of suppliers, for some of the components used in our newly-fabricated equipment. We believe alternative sources of these components are generally available but at prices that may not be as economically advantageous to us as those offered by Exterran. We believe Exterran’s relations with its suppliers are satisfactory.

Competition

The natural gas compression services business is highly competitive. Overall, we experience considerable competition from companies that may be able to more quickly adapt to changes within our industry and changes in economic conditions as a whole, more readily take advantage of available opportunities and adopt more aggressive pricing policies. We believe we are competitive with respect to price, equipment availability, customer service, flexibility in meeting customer needs, technical expertise, quality and reliability of our compressors and related services.

Increased size and geographic scope offer compression services providers operating and cost advantages. As the number of compression applications and size of the compression fleet increases, the number of required sales, administrative and maintenance personnel increases at a lesser rate, resulting in operational efficiencies and potential cost advantages. Additionally, broad geographic scope allows compression service providers to more efficiently provide services to all customers, particularly those with compression applications in remote locations. Our relationship with Archrock allows us to access a diverse fleet of compression equipment and a broad geographic base of operations and related operational personnel that we believe gives us more flexibility in meeting our customers’ needs than many of our competitors. We also believe that our relationship with Archrock provides us with resources that allow us to efficiently manage our customers’ compression service needs.

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Non-competition Arrangement with Archrock

Under the Omnibus Agreement, subject to the provisions described below, Archrock has agreed not to offer or provide compression services to our contract operations services customers that are not also contract operations services customers of Archrock. Compression services include natural gas contract compression services, but exclude fabrication of compression equipment, sales of compression equipment or material, parts or equipment that are components of compression equipment, leasing of compression equipment without also providing related compression equipment service, gas processing operations services and operation, maintenance, service, repairs or overhauls of compression equipment owned by third parties. Similarly, we have agreed not to offer or provide compression services to Archrock’s contract operations services customers that are not also our contract operations services customers.

Some of our customers are also Archrock’s contract operations services customers, which we refer to as overlapping customers. We and Archrock have agreed, subject to the exceptions described below, not to provide contract operations services to an overlapping customer at any site at which the other was providing such services to an overlapping customer on the date of the most recent amendment to the Omnibus Agreement, each being referred to as a “Partnership site” or an “Archrock site,” as applicable. Pursuant to the Omnibus Agreement, if an overlapping customer requests contract operations services at a Partnership site or an Archrock site, whether in addition to or in replacement of the equipment existing at such site on the date of the most recent amendment to the Omnibus Agreement, we may provide contract operations services if such overlapping customer is a Partnership overlapping customer, and Archrock will be entitled to provide such contract operations services if such overlapping customer is an Archrock overlapping customer. Additionally, any additional contract operations services provided to a Partnership overlapping customer will be provided by us and any additional services provided to an Archrock overlapping customer will be provided by Archrock.

Archrock also has agreed that new customers for contract compression services are for our account unless the new customer is unwilling to contract with us or unwilling to do so under our form of compression services agreement. In that case, Archrock may provide compression services to the new customer. If we or Archrock enter into a compression services contract with a new customer, either we or Archrock, as applicable, will receive the protection of the applicable non-competition arrangements described above in the same manner as if such new customer had been a compression services customer of either us or Archrock on the date of the Omnibus Agreement.

The non-competition arrangements described above do not apply to:


•	our provision of contract compression services to a particular Archrock customer or customers, with the approval of Archrock;


•	Archrock’s provision of contract compression services to a particular customer or customers of ours, with the approval of the conflicts committee of our board of directors;


•	our purchase and ownership of not more than five percent of any class of securities of any entity that provides contract compression services to Archrock’s contract compression services customers;


•	Archrock’s purchase and ownership of not more than five percent of any class of securities of any entity that provides contract compression services to our contract compression services customers;


•	Archrock’s ownership of us;

•

our acquisition, ownership and operation of any business that provides contract compression services to Archrock’s contract compression services customers if Archrock has been offered the opportunity to purchase the business for its fair market value from us and Archrock declines to do so. However, if neither the Omnibus Agreement nor the non-competition arrangements described above have already terminated, we will agree not to provide contract compression services to Archrock’s customers that are also customers of the acquired business at the sites at which Archrock is providing contract operations services to them at the time of the acquisition;

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•

Archrock’s acquisition, ownership and operation of any business that provides contract compression services to our contract operations services customers if we have been offered the opportunity to purchase the business for its fair market value from Archrock and we decline to do so with the concurrence of the conflicts committee of our board of directors. However, if neither the Omnibus Agreement nor the non-competition arrangements described above have already terminated, Archrock will agree not to provide contract operations services to our customers that are also customers of the acquired business at the sites at which we are providing contract operations services to them at the time of the acquisition; or

•

a situation in which one of our customers (or its applicable business) and a customer of Archrock (or its applicable business) merge or are otherwise combined, in which case, each of we and Archrock may continue to provide contract operations services to the applicable combined entity or business without being in violation of the non-competition provisions, but Archrock and the conflicts committee of our board of directors must negotiate in good faith to implement procedures or such other arrangements, as necessary, to protect the value to each of Archrock and us of the business of providing contract operations services to each such customer or its applicable business.

Unless the Omnibus Agreement is terminated earlier due to a change of control of Archrock GP LLC, our general partner or us, the non-competition provisions of the Omnibus Agreement will terminate on December 31, 2018 or on the date on which a change of control of Archrock occurs, whichever event occurs first. If a change of control of Archrock occurs, and neither the Omnibus Agreement nor the non-competition arrangements have already terminated, Archrock will agree for the remaining term of the non-competition arrangements not to provide contract operations services to our customers at any site where we are providing contract operations services at the time of the change of control.

Environmental and Other Regulations

Government Regulation

Our operations are subject to stringent and complex U.S. federal, state and local laws and regulations governing the discharge of materials into the environment or otherwise relating to protection of the environment and to occupational safety and health. Compliance with these environmental laws and regulations may expose us to significant costs and liabilities and cause us to incur significant capital expenditures in our operations. Failure to comply with these laws and regulations may result in the assessment of administrative, civil and criminal penalties, imposition of investigatory and remedial obligations, and the issuance of injunctions delaying or prohibiting operations. We believe that our operations are in substantial compliance with applicable environmental and safety and health laws and regulations and that continued compliance with currently applicable requirements would not have a material adverse effect on us. However, the trend in environmental regulation has been to place more restrictions on activities that may affect the environment, and thus, any changes in these laws and regulations that result in more stringent and costly waste handling, storage, transport, disposal, emission or remediation requirements could have a material adverse effect on our results of operations and financial position.

The primary U.S. federal environmental laws to which our operations are subject include the Clean Air Act (“CAA”) and regulations thereunder, which regulate air emissions; the Clean Water Act (“CWA”) and regulations thereunder, which regulate the discharge of pollutants in industrial wastewater and storm water runoff; the Resource Conservation and Recovery Act (“RCRA”) and regulations thereunder, which regulate the management and disposal of hazardous and non-hazardous solid wastes; and the Comprehensive Environmental Response, Compensation, and Liability Act (“CERCLA”) and regulations thereunder, known more commonly as “Superfund,” which imposes liability for the remediation of releases of hazardous substances in the environment. We are also subject to regulation under the U.S. federal Occupational Safety and Health Act (“OSHA”) and regulations thereunder, which regulate the protection of the safety and health of workers. Analogous state and local laws and regulations may also apply.

Air Emissions

The CAA and analogous state laws and their implementing regulations regulate emissions of air pollutants from various sources, including natural gas compressors, and also impose various monitoring and reporting requirements. Such laws and regulations may require a facility to obtain pre-approval for the construction or modification of certain projects or facilities expected to produce air emissions or result in the increase of existing air emissions, obtain and strictly comply with air permits containing various emissions and operational limitations, or utilize specific emission control technologies to limit emissions. Our standard contract operations agreement typically provides that the customer will assume permitting responsibilities and certain environmental risks related to site operations.

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New Source Performance Standards (“NSPS”)

On June 3, 2016, the U.S. Environmental Protection Agency (“EPA”) issued final regulations amending the NSPS for the oil and natural gas source category and applying to sources of emissions of methane and volatile organic compounds (“VOC”) from certain processes, activities and equipment that is constructed, modified or reconstructed after September 18, 2015. Specifically, the regulation contains both methane and VOC standards for several emission sources not currently covered by the NSPS, such as fugitive emissions from compressor stations and pneumatic pumps and methane standards for certain emission sources that are already regulated for VOC, such as equipment leaks at natural gas processing plants. The amendments also establish methane standards for a subset of equipment that the current NSPS regulates, including reciprocating compressors and pneumatic controllers, and extend the current VOC standards to the remaining unregulated equipment. At this time, we do not believe the rule will have a material adverse impact on our business, financial condition, results of operations or ability to make cash distributions to our unitholders.

Venting and Flaring on Federal Lands

On November 18, 2016, the U.S. Department of the Interior’s Bureau of Land Management published final regulations to reduce venting and flaring on federal and tribal lands. The regulation requires leak detection inspections at compressor stations and imposes requirements to reduce emissions from pneumatic controllers, among other things. This regulation may require us to incur material costs to comply.

National Ambient Air Quality Standards (“NAAQS”)

On October 1, 2015, the EPA issued a new NAAQS ozone standard of 70 parts per billion (ppb), which is a reduction from the 75 ppb standard set in 2008. This new standard became effective on December 28, 2015. The states are expected to establish revised attainment/non-attainment regions based on the revised ozone standard by approximately October 2017, utilizing air quality data collected between 2014 and 2016. State implementation of the revised NAAQS could result in stricter permitting requirements, delay or prohibit our customers’ ability to obtain such permits, and result in increased expenditures for pollution control equipment, the costs of which could be significant.

Texas Commission on Environmental Quality (“TCEQ”)

In addition, in January 2011, the TCEQ finalized revisions to certain air permit programs that significantly increase air emissions-related requirements for new and certain existing oil and gas production and gathering sites in the Barnett Shale production area. The final rule established new emissions standards for engines, which could impact the operation of specific categories of engines by requiring the use of alternative engines, compressor packages or the installation of aftermarket emissions control equipment. The rule became effective for the Barnett Shale production area in April 2011, and the lower emissions standards will become applicable between 2020 and 2030 depending on the type of engine and the permitting requirements. A number of other states where our engines are operated have adopted or are considering adopting additional regulations that could impose new air permitting or pollution control requirements for engines, some of which could entail material costs to comply. At this point, however, we cannot predict whether any such rules would require us to incur material costs.

Source Aggregation

On June 3, 2016, the EPA issued final rules under the CAA regarding criteria for aggregating multiple sites into a single source for air-quality permitting purposes applicable to the oil and gas industry. This rule could cause small facilities, such as compressor stations, on an aggregate basis, to be deemed a major source, thereby triggering more stringent air permitting requirements, which in turn could result in operational delays or require the installation of costly pollution control equipment.

Generally

These new regulations and proposals, when finalized, and any other new regulations requiring the installation of more sophisticated pollution control equipment or the adoption of other environmental protection measures, could have a material adverse impact on our business, financial condition, results of operations and ability to make cash distributions to our unitholders.

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Climate change legislation and regulatory initiatives could result in increased compliance costs.

The U.S. Congress has previously considered legislation to restrict or regulate emissions of greenhouse gases, such as carbon dioxide and methane. One bill, passed by the House of Representatives in 2009, but never adopted by the full Congress, would have required greenhouse gas emissions reductions by covered sources of as much as 17% from 2005 levels by 2020 and by as much as 83% by 2050. It presently appears unlikely that comprehensive climate legislation will be passed by either house of Congress in the near future, although energy legislation and other initiatives continue to be proposed that may be relevant to greenhouse gas emissions issues. In addition, almost half of the states, either individually or through multi-state regional initiatives, have begun to address greenhouse gas emissions, primarily through the planned development of emission inventories or regional greenhouse gas cap and trade programs. Although most of the state-level initiatives have to date been focused on large sources of greenhouse gas emissions, such as electric power plants, it is possible that smaller sources such as our gas-fired compressors could become subject to greenhouse gas-related regulation. Depending on the particular program, we could be required to control emissions or to purchase and surrender allowances for greenhouse gas emissions resulting from our operations.

Independent of Congress, the EPA has promulgated regulations controlling greenhouse gas emissions under its existing CAA authority. The EPA has adopted rules requiring many facilities, including petroleum and natural gas systems, to inventory and report their greenhouse gas emissions. These reporting obligations were triggered for some sites we operated in 2016.

In addition, the EPA in June 2010 published a final rule providing for the tailored applicability of air permitting requirements for greenhouse gas emissions. The EPA reported that the rulemaking was necessary because without it certain permitting requirements would apply as of January 2011 at an emissions level that would have greatly increased the number of required permits and, among other things, imposed undue costs on small sources and overwhelmed the resources of permitting authorities. In the rule, the EPA established two initial steps of phase-in to minimize those burdens, excluding certain smaller sources from greenhouse gas permitting until at least April 30, 2016. On January 2, 2011, the first step of the phase-in applied only to new projects at major sources (as defined under those CAA permitting programs) that, among other things, increase net greenhouse gas emissions by 75,000 tons per year. On July 1, 2011, the second step of the phase-in began requiring permitting for otherwise minor sources of air emissions that have the potential to emit at least 100,000 tons per year of greenhouse gases. On June 29, 2012, the EPA issued final regulations for “Phase III” of its program, retaining the permitting thresholds established in Phases I and II. On June 23, 2014, the U.S. Supreme Court held that greenhouse gas emissions alone cannot trigger an obligation to obtain such an air permit even if the project will substantially increase the source’s greenhouse gas emissions. However, for those sources that trigger such air permitting requirements based on their traditional criteria pollutant emissions, the permit must include a limit for greenhouse gases. In addition, the Court concluded that the rule was flawed because the EPA failed to identify a de minimis threshold for greenhouse gases below which Best Available Control Technology would not be required. As of October 3, 2016, the EPA published a proposed rule that would set that de minimis threshold at 75,000 tons per year, effectively restoring the permitting levels that the agency was applying prior to the Supreme Court’s 2014 decision. The requirement for large sources of greenhouse gas emissions to obtain and comply with permits will affect some of our and our customers’ largest new or modified facilities going forward.

Although it is not currently possible to predict how any proposed or future greenhouse gas legislation or regulation by Congress, the states or multi-state regions will impact our business, any legislation or regulation of greenhouse gas emissions that may be imposed in areas in which we conduct business could result in increased compliance costs or additional operating restrictions or reduced demand for our services, and could have a material adverse effect on our business, financial condition, results of operations and ability to make cash distributions to our unitholders.

Water Discharges

The CWA and analogous state laws and their implementing regulations impose restrictions and strict controls with respect to the discharge of pollutants into state waters or waters of the U.S. The discharge of pollutants into regulated waters is prohibited, except in accordance with the terms of a permit issued by the EPA or an analogous state agency. In addition, the CWA regulates storm water discharges associated with industrial activities depending on a facility’s primary standard industrial classification. Several of Archrock’s facilities on which we may store inactive compression units are required to have industrial wastewater discharge permits under local wastewater ordinances, which Archrock has obtained. U.S. federal laws also require development and implementation of spill prevention, controls, and countermeasure plans, including appropriate containment berms and similar structures to help prevent the contamination of navigable waters in the event of a petroleum hydrocarbon tank spill, rupture, or leak at such facilities.

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Waste Management and Disposal

RCRA and analogous state laws and their implementing regulations govern the generation, transportation, treatment, storage and disposal of hazardous and non-hazardous solid wastes. During the course of our operations, we generate wastes (including, but not limited to, used oil, antifreeze, filters, sludges, paints, solvents and abrasive blasting materials) in quantities regulated under RCRA. The EPA and various state agencies have limited the approved methods of disposal for these types of wastes. CERCLA and analogous state laws and their implementing regulations impose strict, and under certain conditions, joint and several liability without regard to fault or the legality of the original conduct on classes of persons who are considered to be responsible for the release of a hazardous substance into the environment. These persons include current and past owners and operators of the facility or disposal site where the release occurred and any company that transported, disposed of, or arranged for the transport or disposal of the hazardous substances released at the site. Under CERCLA, such persons may be subject to joint and several liability for the costs of cleaning up the hazardous substances that have been released into the environment, for damages to natural resources and for the costs of certain health studies. In addition, where contamination may be present, it is not uncommon for neighboring landowners and other third parties to file claims for personal injury, property damage and recovery of response costs allegedly caused by hazardous substances or other pollutants released into the environment.

While we do not own any material facilities or properties, we use Archrock’s properties for the storage and maintenance and repair of inactive compressor units and lease some properties used in support of our operations. Although we have utilized operating and disposal practices that were standard in the industry at the time, hydrocarbons, hazardous substances, or other regulated wastes may have been disposed of or released on or under the properties used or leased by us or on or under other locations where such materials have been taken for disposal by companies sub-contracted by us. In addition, many of these properties have been previously owned or operated by third parties whose treatment and disposal or release of hydrocarbons, hazardous substances or other regulated wastes was not under our control. These properties and the materials released or disposed thereon may be subject to CERCLA, RCRA and analogous state laws. Under such laws, we could be required to remove or remediate historical property contamination, or to perform certain operations to prevent future contamination. At certain of such sites, Archrock is currently working with the prior owners who have undertaken to monitor and clean up contamination that occurred prior to Archrock’s acquisition of these sites. We are not currently under any order requiring that we undertake or pay for any cleanup activities. However, we cannot provide any assurance that we will not receive any such order in the future.

Occupational Safety and Health

We are subject to the requirements of OSHA and comparable state statutes. These laws and the implementing regulations strictly govern the protection of the safety and health of employees. The OSHA hazard communication standard, the EPA community right-to-know regulations under Title III of CERCLA and similar state statutes require that we organize and/or disclose information about hazardous materials used or produced in our operations.

Indemnification for Environmental Liabilities

Under the Omnibus Agreement, Archrock has agreed to indemnify us, for a three-year period following each applicable asset acquisition from Archrock, against certain potential environmental claims, losses and expenses associated with the ownership and operation of the acquired assets that occur before the acquisition date. Archrock’s maximum liability for environmental indemnification obligations under the Omnibus Agreement cannot exceed $5 million, and Archrock will not have any obligation under the environmental or any other indemnification until our aggregate losses exceed $250,000. Archrock will have no indemnification obligations with respect to environmental claims made as a result of additions to or modifications of environmental laws promulgated after such acquisition date. We have agreed to indemnify Archrock against environmental liabilities occurring on or after the applicable acquisition date related to our assets to the extent Archrock is not required to indemnify us.

Employees and Labor Relations

We do not have any employees. Under the Omnibus Agreement, we reimburse Archrock for the allocated costs of its personnel who provide direct or indirect support for our operations. Archrock considers its employee relations to be satisfactory.

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Available Information

Our website address is www.archrock.com. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports are available on our website, without charge, as soon as reasonably practicable after they are filed electronically with the U.S. Securities and Exchange Commission (“SEC”). Information on our website is not incorporated by reference in this Annual Report on Form 10-K or any of our other securities filings. Paper copies of our filings are also available, without charge, from Archrock Partners, L.P., 16666 Northchase Drive, Houston, Texas 77060, Attention: Investor Relations. Alternatively, the public may read and copy any materials we file with the SEC at its Public Reference Room at 100 F Street, NE, Washington, DC 20549. Information on the operation of the Public Reference Room may be obtained by calling the SEC at 1-800-SEC-0330. The SEC also maintains a website that contains reports, proxy and information statements and other information regarding issuers who file electronically with the SEC. The SEC’s website address is www.sec.gov.

Additionally, we make available free of charge on our website:


•	the Code of Business Conduct of Archrock GP LLC; and


•	the charters of the audit, conflicts and compensation committees of Archrock GP LLC.

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Item 1A. Risk Factors

As described in Part I (“Disclosure Regarding Forward-Looking Statements”), this Annual Report on Form 10-K contains forward-looking statements regarding us, our business and our industry. The risk factors described below, among others, could cause our actual results to differ materially from the expectations reflected in the forward-looking statements. If any of the following risks actually occurs, our business, financial condition, results of operations and our ability to make cash distributions to our unitholders could be negatively impacted.

Risks Related to Our Business

We may not have sufficient cash from operations following the establishment of cash reserves and payment of fees and expenses, including cost reimbursements to our general partner, to enable us to make cash distributions to our unitholders at our current distribution rate.

The amount of cash distributions are determined by our board of directors on a quarterly basis. In order to pay cash distributions at the current rate, we will require available cash of approximately $19.1 million per quarter, or $76.4 million per year, based on the number of common and general partner units outstanding on December 31, 2016. In light of current market conditions, we may not have sufficient available cash from operating surplus each quarter to enable us to make cash distributions at our current distribution rate or at all. The amount of cash we can distribute on our units principally depends upon the amount of cash we generate from our operations, which will fluctuate from quarter to quarter based on, among other things, the risks described in this section.

In addition, the actual amount of cash we will have available for distribution will depend on other factors, including:


•	the level of capital expenditures we make;


•	the cost of acquisitions;


•	the rates we charge for our compression services;


•	the level of demand for our compression services;


•	the creditworthiness of our customers;


•	our debt service requirements and other liabilities;


•	fluctuations in our working capital needs;


•	our ability to refinance our debt in the future or borrow funds and access capital markets;


•	restrictions contained in our debt agreements; and


•	the amount of cash reserves established by our general partner.

Failure to generate sufficient cash flow, together with the absence of alternative sources of capital, could adversely impact our results of operations and cash available for distribution to our unitholders, which could limit our ability to make cash distributions to our unitholders at our current distribution rate.

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We are engaged in ongoing litigation regarding our qualification as a Heavy Equipment Dealer, the qualification of our natural gas compressors as Heavy Equipment and the resulting appraisal of our natural gas compressors for ad valorem tax purposes, as well as the location where our natural gas compressors are taxable, under revised Texas statutes. If this litigation is resolved against us, or if in the future we do not qualify as a Heavy Equipment Dealer or our compressors do not qualify as Heavy Equipment because of new or revised Texas statutes, we will incur additional taxes and could be subject to substantial penalties and interest, which would adversely impact our results of operations and cash available for distribution.

In 2011, the Texas Legislature enacted changes related to the appraisal of natural gas compressors for ad valorem tax purposes by expanding the definitions of “Heavy Equipment Dealer” and “Heavy Equipment” effective from the beginning of 2012 (the “Heavy Equipment Statutes”). Under the revised statutes, we believe we are a Heavy Equipment Dealer, that our natural gas compressors are Heavy Equipment and that we, therefore, are required to file our ad valorem taxes under this new methodology. We further believe that our natural gas compressors are taxable under the Heavy Equipment Statutes in the counties where we maintain a business location and keep natural gas compressors instead of where the compressors may be located on January 1 of a tax year. A large number of appraisal review boards denied our position, although some accepted it, and we filed petitions for review in the appropriate district courts with respect to the 2012 through 2016 tax years. See Part I, Item 3 (“Legal Proceedings”) and Note 16 (“Commitments and Contingencies”) to our Financial Statements included in this Annual Report on Form 10-K for additional information regarding legal proceedings to which we are a party, including ongoing litigation regarding our qualification as a Heavy Equipment Dealer, the qualification of our natural gas compressors as Heavy Equipment and the resulting appraisal of our natural gas compressors for ad valorem tax purposes, as well as the location where our natural gas compressors are taxable, under revised Texas statutes.

As a result of the new methodology, our ad valorem tax expense (which is reflected in our consolidated statements of operations as a component of cost of sales (excluding depreciation and amortization expense)) includes a benefit of $14.9 million during the year ended December 31, 2016. Since the change in methodology became effective in 2012, we have recorded an aggregate benefit of $50.1 million as of December 31, 2016, of which approximately $11.0 million has been agreed to by a number of appraisal review boards and county appraisal districts and $39.1 million has been disputed and is currently in litigation. Recognizing the similarity of the issues and that these cases will ultimately be resolved by the Texas appellate courts, we have reached, or intend to reach, agreements with some of the appraisal districts to stay or abate certain of these pending district court cases. If we are unsuccessful in our litigation with the appraisal districts, we would be required to pay ad valorem taxes up to the aggregate benefit we have recorded, and the additional ad valorem tax payments may also be subject to substantial penalties and interest. In addition, while we do not expect the ultimate determination of the issue of where the natural gas compressors are taxable under the Heavy Equipment Statutes would have an impact on the amount of taxes due, we could be subject to substantial penalties if we are unsuccessful on this issue. Also, if we are unsuccessful in our litigation with the appraisal districts, or if legislation is enacted in Texas that repeals or alters the Heavy Equipment Statutes such that in the future we do not qualify as a Heavy Equipment Dealer or our compressors do not qualify as Heavy Equipment, then we would likely be required to pay these ad valorem taxes under the old methodology going forward, which would increase our quarterly cost of sales expense up to approximately the amount of our then most recent quarterly benefit recorded. If this litigation is resolved against us in whole or in part, or if in the future we do not qualify as a Heavy Equipment Dealer or our compressors do not qualify as Heavy Equipment because of new or revised Texas statutes, we will incur additional taxes and could be subject to substantial penalties and interest, which could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

We have a substantial amount of debt that could limit our ability to fund future growth and operations and increase our exposure to risk during adverse economic conditions.

At December 31, 2016, we had approximately $1.3 billion in outstanding debt obligations net of unamortized debt discounts and unamortized deferred financing costs. Many factors, including factors beyond our control, may affect our ability to make payments on our outstanding indebtedness. These factors include those discussed elsewhere in these Risk Factors and those listed in the Disclosure Regarding Forward-Looking Statements section included in Part I of this Annual Report on Form 10-K.

Our substantial debt and associated commitments could have important adverse consequences. For example, these commitments could:


•	make it more difficult for us to satisfy our contractual obligations;


•	increase our vulnerability to general adverse economic and industry conditions;


•	limit our ability to fund future working capital, capital expenditures, acquisitions or other corporate requirements;

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•	increase our vulnerability to interest rate fluctuations because the interest payments on a portion of our debt are based upon variable interest rates and a portion can adjust based upon our credit statistics;


•	limit our flexibility in planning for, or reacting to, changes in our business and our industry;


•	place us at a disadvantage compared to our competitors that have less debt or less restrictive covenants in such debt;


•	limit our ability to refinance our debt in the future or borrow additional funds; and


•	limit our ability to maintain our cash distributions to unitholders.

Covenants in our Credit Agreement may impair our ability to operate our business.

Our senior secured credit agreement (the “Credit Agreement”) contains various covenants with which we must comply, including, but not limited to, restrictions on the use of proceeds from borrowings and limitations on our ability to incur additional indebtedness, engage in transactions with affiliates, merge or consolidate, sell assets, make certain investments and acquisitions, make loans, grant liens, repurchase equity and pay dividends and distributions. The Credit Agreement also contains various covenants, which have been amended effective March 31, 2016, requiring mandatory prepayments from the net cash proceeds of certain asset transfers. In addition, if as of any date we have cash and cash equivalents (other than proceeds from a debt or equity issuance in the 30 days prior to such date reasonably expected to be used to fund an acquisition permitted under the Credit Agreement) in excess of $50.0 million, then such excess amount will be used to pay down outstanding borrowings of a corresponding amount under the revolving credit facility.

We must maintain various consolidated financial ratios, including a ratio of EBITDA (as defined in the Credit Agreement) to Total Interest Expense (as defined in the Credit Agreement) of not less than 2.75 to 1.0, a ratio of Total Debt (as defined in the Credit Agreement) to EBITDA of not greater than 5.95 to 1.0 through the fourth quarter of 2017, 5.75 to 1.0 in the first quarter of 2018, and 5.25 to 1.0 (subject to a temporary increase to 5.5 to 1.0 for any quarter during which an acquisition meeting certain thresholds is completed and for the following two quarters after the acquisition closes) thereafter and a ratio of Senior Secured Debt (as defined in the Credit Agreement) to EBITDA of not greater than 3.50 to 1.0 through the fourth quarter of 2017, 3.75 to 1.0 in the first quarter of 2018 and 4.0 to 1.0 thereafter. As of December 31, 2016, we maintained a 3.9 to 1.0 EBITDA to Total Interest Expense ratio, a 4.7 to 1.0 Total Debt to EBITDA ratio and a 2.3 to 1.0 Senior Secured Debt to EBITDA ratio. If we were to anticipate non-compliance with these financial ratios, we may take actions to maintain compliance with them, including reductions in our general and administrative expenses, our capital expenditures or the payment of cash distributions at our current distribution rate. Any of these measures could have an adverse effect on our operations, cash flows and the price of our common units.

The breach of any of our covenants could result in a default under our Credit Agreement which could cause our indebtedness under our Credit Agreement to become due and payable. If the repayment obligations on any of our indebtedness were to be so accelerated, we may not be able to repay the debt or refinance the debt on acceptable terms, and our financial position would be materially adversely affected. A default under one of our debt agreements would trigger cross-default provisions under our other debt agreements, which would accelerate our obligation to repay our indebtedness under those agreements. In addition, a material adverse effect on our assets, liabilities, financial condition, business or operations that, taken as a whole, impacts our ability to perform our obligations under the Credit Agreement, could lead to a default under that agreement. As of December 31, 2016, we were in compliance with all financial covenants under the Credit Agreement.

The erosion of the financial condition of our customers could adversely affect our business.

Many of our customers finance their exploration and production activities through cash flow from operations, the incurrence of debt or the issuance of equity. During times when the oil or natural gas markets weaken, our customers are more likely to experience a downturn in their financial condition. Additionally, some of our midstream customers may provide their gathering, transportation and related services to a limited number of companies in the oil and gas production business. A reduction in borrowing bases under reserve-based credit facilities and the lack of availability of debt or equity financing could result in a reduction in our customers’ spending for our services. For example, our customers could seek to preserve capital by canceling contracts or determining not to enter into any new natural gas compression service contracts, thereby reducing demand for our services. Furthermore, the loss by our midstream customers of their key customers could reduce demand for their services and result in a deterioration of their financial condition, which would in turn decrease their demand for our services. Reduced demand for our services could adversely affect our business, financial condition, results of operations and ability to make cash distributions to our unitholders. In addition, in the event of the financial failure of a customer, we could experience a loss on all or a portion of our outstanding accounts receivable associated with that customer.

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We depend on Williams Partners and Anadarko for a significant portion of our revenue. The loss of our business with Williams Partners or Anadarko or the inability or failure of Williams Partners or Anadarko to meet their payment obligations may adversely affect our financial results.

During the year ended December 31, 2016, Williams Partners and Anadarko accounted for approximately 17% and 10%, respectively, of our consolidated revenue. There is no guarantee that, upon the expiration of the Partnership’s existing services agreements with Williams Partners or Anadarko, Williams Partners will choose to renew or Anadarko will choose to renew these existing services agreements or enter into similar agreements with the Partnership. The loss of our business with Williams Partners or Anadarko, unless offset by additional contract compression services revenue from other customers, or the inability or failure of Williams Partners or Anadarko to meet their payment obligations under our contractual arrangements, could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

Many of our compression services contracts with customers have short initial terms, and after the initial term are cancelable on short notice, and we cannot be sure that such contracts will be extended or renewed after the end of the initial contractual term. Any such nonrenewals, or renewals at reduced rates, or the loss of contracts with any significant customer, could adversely impact our results of operations and cash available for distribution.

The length of our compression services contracts with customers varies based on operating conditions and customer needs. Our initial contract terms are not long enough to enable us to recoup the cost of acquiring the equipment we use to provide compression services, and these contracts are typically cancelable on short notice after the initial term. We cannot be sure that a substantial number of these contracts will be extended or renewed by our customers or that any of our customers will continue to contract with us. The inability to negotiate extensions or renew a substantial portion of our compression services contracts, the renewal of such contracts at reduced rates, the inability to contract for additional services with our customers or the loss of all or a significant portion of our services contracts with any significant customer could lead to a reduction in revenue and net income and could require us to record additional asset impairments. This could have a material adverse effect upon our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

Our inability to fund purchases of additional compression equipment could adversely impact our results of operations and cash available for distribution.

We may not be able to maintain or grow our asset and customer base unless we have access to sufficient capital to purchase additional compression equipment. Cash flow from our operations and availability under our senior secured credit facility may not provide us with sufficient cash to fund our capital expenditure requirements, including any funding requirements related to acquisitions. Additionally, pursuant to our partnership agreement, we intend to distribute all of our “available cash,” as defined in our partnership agreement, to our unitholders on a quarterly basis. Therefore, a significant portion of our cash flow from operations will be used to fund such distributions. As a result, we intend to fund our growth capital expenditures and acquisitions with external sources of capital including additional borrowings under our senior secured credit facility and/or public or private offerings of equity or debt. Our ability to grow our asset and customer base could be impacted by any limits on our ability to access equity and debt capital.

As a result of recent market instability, we may be unable to access the capital and credit markets to obtain additional capital, which could adversely affect our operations, impair our ability to make acquisitions or capital expenditures and reduce the amount of cash available for distribution.

We may require additional capital to increase our asset or operational base or to maintain our distributions. Recent instability in the capital and credit markets (both generally and in the oil and gas industry in particular) could limit our ability to access these markets to raise debt or equity capital on affordable terms or to obtain additional financing for working capital, capital expenditures or acquisitions or to refinance existing indebtedness. Recent instability in the oil and gas industry, among other things, may cause some lenders to increase interest rates, enact tighter lending standards, refuse to finance existing debt at maturity on favorable terms or at all and may reduce or cease to provide funding to borrowers. If we are unable to access the capital and credit markets on favorable terms, or if we are not successful in raising capital within the time period required or at all, we may not be able to grow or maintain our business, which could have a material adverse effect on our business, results of operations and financial condition and could limit our ability to make cash distributions to our unitholders at our current distribution rate.

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If we do not make acquisitions on economically acceptable terms, our future growth and our ability to maintain distributions to our unitholders could be limited.

Our ability to grow depends, in part, on our ability to make accretive acquisitions. If we are unable to make accretive acquisitions either because we are: (i) unable to identify attractive acquisition candidates or negotiate acceptable purchase contracts with them, (ii) unable to obtain financing for these acquisitions on economically acceptable terms, or (iii) outbid by competitors, then our future growth and ability to maintain distributions could be limited. Furthermore, even if we make acquisitions that we believe will be accretive, these acquisitions may nevertheless result in a decrease in the cash generated from operations per unit.

Any acquisition involves potential risks, including, among other things:


•	an inability to integrate successfully the businesses we acquire;


•	the assumption of unknown liabilities;


•	limitations on rights to indemnity from the seller;


•	mistaken assumptions about the cash generated or anticipated to be generated by the business acquired or the overall costs of equity or debt;


•	the diversion of management’s attention from other business concerns;


•	unforeseen operating difficulties; and


•	customer or key employee losses at the acquired businesses.

If we consummate any future acquisitions, our capitalization and results of operations may change significantly, and unitholders will not have the opportunity to evaluate the economic, financial and other relevant information that we will consider in determining the application of our future funds and other resources. In addition, competition from other buyers could reduce our acquisition opportunities or cause us to pay a higher price than we might otherwise pay.

We have been in the past dependent on our cost caps from Archrock to generate sufficient cash from operating surplus to enable us to make cash distributions approximating our current distribution rate. These cost caps were in effect through December 31, 2014; however, effective January 1, 2015, the cost caps provisions of the Omnibus Agreement terminated. Their termination may reduce the amount of cash flow available to unitholders in the future and, accordingly, could impair our ability to maintain our distributions.

Our cost of sales exceeded the cap provided in the Omnibus Agreement by $2.5 million, and $12.4 million during 2014 and 2013, respectively. Our SG&A expenses exceeded the cap provided in the Omnibus Agreement by $11.4 million and $12.8 million during 2014 and 2013, respectively. Accordingly, our distributable cash flow (please see Part II, Item 6 (“Selected Financial Data — Non-GAAP Financial Measures”) of this Annual Report on Form 10-K for a discussion of distributable cash flow) would have been approximately $13.9 million and $25.2 million lower during 2014 and 2013, respectively, without the benefit of the cost caps. As a result, without the benefit of the cost caps, our distributable cash flow coverage (distributable cash flow for the period divided by distributions declared to all unitholders for the period, including incentive distribution rights) would have been 1.20x and 1.13x during 2014 and 2013, respectively, rather than the actual distributable cash flow coverage (which includes the benefit of cost caps) of 1.30x and 1.36x during 2014 and 2013, respectively.

Effective January 1, 2015, the cost caps provisions of the Omnibus Agreement terminated. As a result, our distributable cash flow will be reduced by the full amount of our cost of sales and SG&A expense, which could reduce the amount of cash flow available to unitholders in the future and, accordingly, could impair our ability to maintain our distributions.

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Our reliance on Archrock as an operator of our assets and our limited ability to control certain costs could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

Pursuant to the Omnibus Agreement, Archrock provides us with all administrative and operational services, including all operations, marketing, maintenance and repair, periodic overhauls of compression equipment, inventory management, legal, accounting, treasury, insurance administration and claims processing, risk management, health, safety and environmental, information technology, human resources, credit, payroll, internal audit, taxes and engineering services necessary to run our business. Our operational success and ability to execute our growth strategy depends significantly upon Archrock’s satisfactory operation of our assets and performance of these services. Our reliance on Archrock as an operator of our assets and our resulting limited ability to control certain costs could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

Due to our significant relationship with Archrock, adverse developments concerning Archrock, as well as Archrock’s decreased size following the Spin-off, could adversely affect us, even if we have not suffered any similar developments.

Through its subsidiaries, Archrock owns all of our general partner interests, including all of the incentive distribution rights, and a significant amount of our limited partner interests. Our access to Archrock’s personnel, logistical capabilities, geographic scope and operational efficiencies allows us to provide a full complement of contract operations services. In addition, we benefit from a number of arrangements in the Omnibus Agreement between us and Archrock (see Note 4 (“Related Party Transactions”) to our Financial Statements for further discussion of the Omnibus Agreement). A material adverse effect upon Archrock’s assets, liabilities, financial condition, business or operations could impact Archrock’s ability to continue to provide these benefits to us. As a result, we could experience a material adverse effect upon our business, results of operations, financial condition and ability to make cash distributions to our unitholders, even if we have not suffered any similar developments.

Following the closing of the Spin-off, certain of Archrock’s fabrication operations, logistical capabilities, geographic scope and operational efficiencies were contributed to Exterran, and certain of Archrock’s key personnel became employees of Exterran. As a result, Archrock is a smaller and less diversified company with more limited financial resources and operational capabilities, and Archrock may be unable or unwilling to provide us with certain financial and operational support, including certain historical cost caps Archrock provided to us prior to 2015, that it was able or willing to provide to us prior to the Spin-off. Archrock’s status as a smaller company and loss of these capabilities and key personnel could have a material adverse effect upon our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

As a result of our supply agreement with Exterran, we are subject to counterparty risk associated with Exterran’s business, including product shortages and price increases involving Exterran’s suppliers, which could have a negative impact on our results of operations. Additionally, if we are unable to purchase compression equipment from Exterran or other third parties, we may be unable to retain existing customers or compete for new customers, which could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

Under the terms of our supply agreement with Exterran, we are required to purchase our requirements of newly-fabricated compression equipment during the term of the agreement from Exterran and its affiliates, subject to certain exceptions. As a result, we are subject to many of the same counterparty risks as Exterran with respect to its suppliers. For example, certain of the major components used in the compression equipment we expect to purchase from Exterran are obtained by Exterran from a single source or a limited group of suppliers. Exterran’s reliance on these suppliers involves several risks, including price increases, inferior component quality and a potential inability to obtain an adequate supply of required components in a timely manner. Exterran does not have long-term contracts with some of these sources, and the partial or complete loss of certain of these sources could have a negative impact on our ability to obtain compression equipment from Exterran which, in turn, could have a negative impact on our results of operations, reputation and customer relationships. Further, any increase in component prices for compression equipment fabricated by Exterran for us will be passed on to us under the terms of our supply agreement. As a result, a significant increase in the price of one or more of these components could have a negative impact on our results of operations.

Additionally, except as set forth in our supply agreement, Exterran is not under any obligation to offer or sell to us newly-fabricated compression equipment, and may choose not to sell such equipment to us on time or at all. In the event that we are not able to purchase compression equipment from Exterran, we may not be able to purchase such compression equipment from third-party producers or marketers of such equipment or from our competitors on comparable terms or at all. If we are unable to purchase compression equipment on a timely basis to meet the demands of our customers, our existing customers may terminate their contractual relationships with us, or we may not be able to compete for business from new or existing customers, which, in each case, could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

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Because we own a larger portion of our and Archrock’s combined pool of idle compression equipment than in prior years, we expect that our maintenance capital expenditures will increase, which could reduce the amount of cash available for distribution.

Archrock manages its and our respective fleets as one pool of compression equipment from which we can each readily fulfill our respective customers’ service needs. When we or Archrock are advised of a contract operations services opportunity, Archrock reviews both our and its fleet for an available and appropriate compressor unit. Given that the majority of the idle compression equipment has historically been held by Archrock, much of the idle compression equipment required for these contract operations services opportunities has been held by Archrock. Under the Omnibus Agreement, the owner of the equipment being transferred is required to pay the costs associated with making the idle equipment suitable for the proposed customer and then has generally leased the equipment to the recipient of the equipment or exchanged the equipment for other equipment of the recipient. Since Archrock has historically owned the majority of such equipment, Archrock has generally had to bear a larger portion of the maintenance capital expenditures associated with making transferred equipment ready for service. For equipment that is then leased to the recipient, the maintenance capital cost is a component of the lease rate that is paid under the lease. Because we currently own approximately 60% of our and Archrock’s combined pool of idle compression equipment by horsepower, we expect that more of our equipment will be available to satisfy our or Archrock’s customer requirements. As a result, we expect that our maintenance capital expenditures would increase, which could reduce our cash available for distribution.

A substantial portion of our cash flow must be used to service our debt obligations, and future interest rate increases could reduce the amount of our cash available for distribution.

At December 31, 2016, we had $1.3 billion in outstanding debt obligations, net of unamortized debt discounts and unamortized deferred financing costs, consisting of $341.2 million outstanding under our 6% senior notes due October 2022 (the “2014 Notes”), $342.4 million outstanding under our 6% senior notes due April 2021 (the “2013 Notes”), $509.5 million outstanding under our revolving credit facility and $149.6 million outstanding under our term loan. Our Credit Agreement, which consists of a revolving credit facility and term loan facility, requires that we make mandatory prepayments of the term loan with the net cash proceeds of certain asset transfers. Borrowings under our senior secured credit facility bear interest at floating rates. We have effectively fixed a portion of the floating rate debt through the use of interest rate swaps; however, changes in economic conditions could result in higher interest rates, thereby increasing our interest expense and reducing our funds available for capital investment, operations or distributions to our unitholders. As of December 31, 2016, after taking into consideration interest rate swaps, we had $159.5 million of outstanding indebtedness that was effectively subject to floating interest rates. A 1% increase in the effective interest rate on our outstanding debt subject to floating interest rates at December 31, 2016 would result in an annual increase in our interest expense of approximately $1.6 million. Any such increase in our interest expense could reduce the amount of cash we have available for distribution.

Our agreement not to compete with Archrock could limit our ability to grow.

We have entered into an Omnibus Agreement with Archrock and several of its subsidiaries. The Omnibus Agreement includes certain agreements not to compete between us and our affiliates, on the one hand, and Archrock and its affiliates, on the other hand. This agreement not to compete with Archrock could limit our ability to grow. For further discussion of the Omnibus Agreement, please see Note 4 (“Related Party Transactions”) to our Financial Statements.

We face significant competitive pressures that may cause us to lose market share and harm our financial performance.

Our business is highly competitive and there are low barriers to entry. We experience competition from companies that may be able to adapt more quickly to technological changes within our industry and changes in economic and market conditions, more readily take advantage of acquisitions and other opportunities and adopt more aggressive pricing policies. Our ability to renew or replace existing contracts with our customers at rates sufficient to maintain current revenue and cash flows could be adversely affected by the activities of our competitors. If our competitors substantially increase the resources they devote to the development and marketing of competitive services or substantially decrease the prices at which they offer their services, we may not be able to compete effectively. In addition, we could face significant competition from new entrants into our industry. Some of our existing competitors or new entrants may expand or fabricate new compressor units that would create additional competition for the services we provide to our customers. In addition, our customers may purchase and operate their own compressor fleets in lieu of using our natural gas compression services. We also may not be able to take advantage of certain opportunities or make certain investments because of our debt levels and our other obligations. Any of these competitive pressures could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

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We may not be able to grow our cash flows if we do not expand our business, which could limit our ability to maintain distributions to our unitholders.

Our ability to grow the per-unit distribution on our units is dependent in part upon our ability to expand our business. Our future growth will depend upon a number of factors, some of which we cannot control. These factors include our ability to:


•	consummate accretive acquisitions;


•	enter into contracts for new services with our existing customers or new customers; and


•	obtain required financing for our existing and new operations.

A deficiency in any of these factors could adversely affect our ability to achieve growth in the level of our cash flows or realize benefits from acquisitions.

Archrock continues to own and operate a contract compression business, competition from which could adversely impact our results of operations and cash available for distribution.

Archrock and its affiliates, other than us, are prohibited from competing directly or indirectly with us with respect to certain of our existing customers and certain locations where we currently conduct business, and with respect to any new contract compression services customer that approaches either Archrock or ourselves, until the earlier of December 31, 2018, a change of control of Archrock or our general partner, or the removal or withdrawal of our general partner. Otherwise, Archrock is not prohibited from owning assets or engaging in businesses that compete directly or indirectly with us. Archrock continues to own and operate a contract operations business, including natural gas compression, and continues to engage in aftermarket service activities. Archrock is an established participant in the contract operations business, and has significant resources, including idle compression equipment, operating personnel, vendor relationships and experience, which factors may make it challenging for us to compete with it with respect to commercial activities as well as for acquisition opportunities. As a result, competition from Archrock could adversely impact our results of operations and cash available for distribution.

Our ability to manage and grow our business effectively may be adversely affected if Archrock loses management or operational personnel.

Our officers are also officers or employees of Archrock. Additionally, we do not have any of our own employees, but rather rely on Archrock’s employees to operate our business and, following the closing of the Spin-off, certain of Archrock’s key personnel became employees of Exterran. We believe that Archrock’s ability to hire, train and retain qualified personnel will continue to be challenging and important as we grow. When general industry conditions are good, the supply of experienced operational and field personnel, in particular, decreases as other energy companies’ needs for the same personnel increase. Our ability to grow and to continue our current level of service to our customers will be adversely impacted if Archrock is unable to successfully hire, train and retain these important personnel.

Our operations entail inherent risks that may result in substantial liability. We do not insure against all potential losses and could be seriously harmed by unexpected liabilities.

Our operations entail inherent risks including equipment defects, malfunctions and failures and natural disasters which could result in uncontrollable flows of natural gas or well fluids, fires and explosions. These risks may expose us to substantial liability for personal injury, wrongful death, property damage, pollution and other environmental damages. Archrock insures our property and operations against many of these risks; however, the insurance it carries may not be adequate to cover our claims or losses. In addition, Archrock is substantially self-insured for worker’s compensation, employer’s liability, property, auto liability, general liability and employee group health claims in view of the relatively high per-incident deductibles it absorbs under its insurance arrangements for these risks. Further, insurance covering the risks we expect to face or in the amounts we desire may not be available in the future or, if available, the premiums may not be commercially justifiable. If we were to incur substantial liability and such damages were not covered by insurance or were in excess of policy limits, or if we were to incur liability at a time when we are not able to obtain liability insurance, our business, results of operations, financial condition and ability to make cash distributions to our unitholders could be negatively impacted.

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We indirectly depend on particular suppliers and are vulnerable to product shortages and price increases, which could have a negative impact on our results of operations.

Some of the parts and components used in our compressors are obtained by Archrock from a single source or a limited group of suppliers. Archrock’s reliance on these suppliers involves several risks, including price increases, inferior component quality and a potential inability to obtain an adequate supply of required components in a timely manner. Archrock does not have long-term contracts with some of these suppliers, and its partial or complete loss of certain of these suppliers could have a negative impact on our results of operations and could damage our customer relationships. As a result, a significant increase in the price of one or more of these components could have a negative impact on our results of operations.

Threats of cyber attacks or terrorism could affect our business.

We may be threatened by problems such as cyber attacks, computer viruses or terrorism that may disrupt our operations and harm our operating results. Our industry requires the continued operation of sophisticated information technology systems and network infrastructure. Despite our implementation of security measures, our technology systems are vulnerable to disability or failures due to hacking, viruses, acts of war or terrorism and other causes. If our information technology systems were to fail and we were unable to recover in a timely way, we might be unable to fulfill critical business functions, which could have a material adverse effect on our business, results of operations, financial condition and ability to make cash distributions to our unitholders.

In addition, our assets may be targets of terrorist activities that could disrupt our ability to service our customers. We may be required by our regulators or by the future terrorist threat environment to make investments in security that we cannot currently predict. The implementation of security guidelines and measures and maintenance of insurance, to the extent available, addressing such activities could increase costs. These types of events could materially adversely affect our business and results of operations. In addition, these types of events could require significant management attention and resources, and could adversely affect our reputation among customers and the public.

From time to time, we are subject to various claims, litigation and other proceedings that could ultimately be resolved against us, requiring material future cash payments or charges, which could impair our financial condition or results of operations.

The size, nature and complexity of our business make us susceptible to various claims, both in litigation and binding arbitration proceedings. We are currently, and may in the future become, subject to various claims, which, if not resolved within amounts we have accrued, could have a material adverse effect on our financial position, results of operations or cash flows, including our ability to make cash distributions to our unitholders. Similarly, any claims, even if fully indemnified or insured, could negatively impact our reputation among our customers and the public, and make it more difficult for us to compete effectively or obtain adequate insurance in the future. See Part I, Item 3 (“Legal Proceedings”) and also Note 16 (“Commitments and Contingencies”) to our Financial Statements included in this Annual Report on Form 10-K for additional information regarding certain legal proceedings to which we are a party.

U.S. federal, state and local legislative and regulatory initiatives relating to hydraulic fracturing as well as governmental reviews of such activities could result in increased costs and additional operating restrictions or delays in the completion of oil and natural gas wells and adversely affect demand for our contract operations services.

Hydraulic fracturing is an important and common practice that is used to stimulate production of natural gas and/or oil from dense subsurface rock formations. Hydraulic fracturing involves the injection of water, sand or alternative proppant and chemicals under pressure into target geological formations to fracture the surrounding rock and stimulate production. We do not perform hydraulic fracturing, but many of our customers do. Hydraulic fracturing is typically regulated by state agencies, but recently, there has been increased public concern regarding an alleged potential for hydraulic fracturing to adversely affect drinking water supplies, and proposals have been made to enact separate U.S. federal, state and local legislation that would increase the regulatory burden imposed on hydraulic fracturing.

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For example, at the U.S. federal level, the U.S. Environmental Protection Agency (“EPA”) issued an Advance Notice of Proposed Rulemaking to collect data on chemicals used in hydraulic fracturing operations under Section 8 of the Toxic Substances Control Act and proposed regulations under the CWA governing wastewater discharges from hydraulic fracturing and certain other natural gas operations. On March 26, 2015, the U.S. Department of the Interior’s Bureau of Land Management released a final rule that updates existing regulation of hydraulic fracturing activities on U.S. federal lands, including requirements for chemical disclosure, wellbore integrity and handling of flowback water. The final rule was expected to be effective on June 24, 2015, but, on September 30, 2015, a federal district court issued a preliminary injunction preventing implementation of the rule and, on June 21, 2016, that court voided the rule for exceeding the agency’s statutory authority. In addition, several governmental reviews are underway that focus on environmental aspects of hydraulic fracturing activities. In December 2016, the EPA released its final report on the potential impact of hydraulic fracturing on drinking water resources, which concluded that hydraulic fracturing activities have not led to widespread, systemic impacts on drinking water sources in the United States, although there are above and below ground mechanisms by which hydraulic fracturing activities have the potential to impact drinking water sources. The results of this study or similar governmental reviews could spur initiatives to further regulate hydraulic fracturing under the Safe Drinking Water Act of 1974 or otherwise.

At the state level, several states have adopted or are considering legal requirements that could impose more stringent permitting, disclosure and well construction requirements on hydraulic fracturing activities. For example in May 2013, the Texas Railroad Commission adopted new rules governing well casing, cementing and other standards for ensuring that hydraulic fracturing operations do not contaminate nearby water resources. Local governments may also seek to adopt ordinances within their jurisdictions regulating the time, place and manner of drilling activities in general or hydraulic fracturing activities in particular or prohibit the performance of well drilling in general or hydraulic fracturing in particular. If new or more stringent U.S. federal, state or local legal restrictions relating to the hydraulic fracturing process are adopted in areas where our natural gas exploration and production customers operate, those customers could incur potentially significant added costs to comply with such requirements, experience delays or curtailment in the pursuit of exploration, development or production activities and perhaps even be precluded from drilling wells. Any such restrictions could reduce demand for our contract operations services, and as a result could have a material adverse effect on our business, financial condition, results of operations and ability to make cash distributions to our unitholders.

New regulations, proposed regulations and proposed modifications to existing regulations under the CAA, if implemented, could result in increased compliance costs.

On June 3, 2016, the EPA issued final regulations amending the New Source Performance Standards (“NSPS”) for the oil and natural gas source category and applying to sources of emissions of methane and volatile organic compounds (“VOC”) from certain processes, activities and equipment that is constructed, modified or reconstructed after September 18, 2015. Specifically, the regulation contains both methane and VOC standards for several emission sources not currently covered by the NSPS, such as fugitive emissions from compressor stations and pneumatic pumps and methane standards for certain emission sources that are already regulated for VOC, such as equipment leaks at natural gas processing plants. The amendments also establish methane standards for a subset of equipment that the current NSPS regulates, including reciprocating compressors and pneumatic controllers, and extend the current VOC standards to the remaining unregulated equipment. At this point, we cannot predict whether any such proposed regulations would require us to incur material costs.

On November 18, 2016, the U.S. Department of the Interior’s Bureau of Land Management published final regulations to reduce venting and flaring on federal and tribal lands. The regulation requires leak detection inspections at compressor stations and imposes requirements to reduce emissions from pneumatic controllers, among other things. This rule may require us to incur material costs to comply.

On October 1, 2015, the EPA issued a new National Ambient Air Quality Standards (“NAAQS”) ozone standard of 70 parts per billion (ppb), which is a reduction from the 75 ppb standard set in 2008. This new standard became effective on December 28, 2015. The states are expected to establish revised attainment/non-attainment regions based on the revised ozone standard by approximately October 2017, utilizing air quality data collected between 2014 and 2016. State implementation of the revised NAAQS could result in stricter permitting requirements, delay or prohibit our customers’ ability to obtain such permits, and result in increased expenditures for pollution control equipment, the costs of which could be significant.

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In addition, in January 2011, the Texas Commission on Environmental Quality (“TCEQ”) finalized revisions to certain air permit programs that significantly increase air emissions-related requirements for new and certain existing oil and gas production and gathering sites in the Barnett Shale production area. The final rule established new emissions standards for engines, which could impact the operation of specific categories of engines by requiring the use of alternative engines, compressor packages or the installation of aftermarket emissions control equipment. The rule became effective for the Barnett Shale production area in April 2011, and the lower emissions standards will become applicable between 2020 and 2030 depending on the type of engine and the permitting requirements. A number of other states where our engines are operated have adopted or are considering adopting additional regulations that could impose new air permitting or pollution control requirements for engines, some of which could entail material costs to comply. At this point, however, we cannot predict whether any such rules would require us to incur material costs.

Finally, on June 3, 2016, the EPA issued final rules under the CAA regarding criteria for aggregating multiple sites into a single source for air-quality permitting purposes applicable to the oil and gas industry. This rule could cause small facilities, such as compressor stations, on an aggregate basis, to be deemed a major source, thereby triggering more stringent air permitting requirements, which in turn could result in operational delays or require the installation of costly pollution control equipment.

We are subject to a variety of governmental regulations; failure to comply with these regulations may result in administrative, civil and criminal enforcement measures and changes in these regulations could increase our costs or liabilities.

We are subject to a variety of U.S. federal, state and local laws and regulations, including relating to the environment, health and safety and taxation. Many of these laws and regulations are complex, change frequently, are becoming increasingly stringent, and the cost of compliance with these requirements can be expected to increase over time. Failure to comply with these laws and regulations may result in a variety of administrative, civil and criminal enforcement measures, including assessment of monetary penalties, imposition of remedial requirements and issuance of injunctions as to future compliance. From time to time, as part of our operations, including newly acquired operations, we may be subject to compliance audits by regulatory authorities in the various states in which we operate.

Environmental laws and regulations may, in certain circumstances, impose strict liability for environmental contamination, which may render us liable for remediation costs, natural resource damages and other damages as a result of our conduct that was lawful at the time it occurred or the conduct of, or conditions caused by, prior owners or operators or other third parties. In addition, where contamination may be present, it is not uncommon for neighboring land owners and other third parties to file claims for personal injury, property damage and recovery of response costs. Remediation costs and other damages arising as a result of environmental laws and regulations, and costs associated with new information, changes in existing environmental laws and regulations or the adoption of new environmental laws and regulations could be substantial and could negatively impact our financial condition, profitability and results of operations. Moreover, failure to comply with these environmental laws and regulations may result in the imposition of administrative, civil and criminal penalties and the issuance of injunctions delaying or prohibiting operations.

We may need to apply for or amend facility permits or licenses from time to time with respect to storm water or wastewater discharges, waste handling, or air emissions relating to manufacturing activities or equipment operations, which subjects us to new or revised permitting conditions that may be onerous or costly to comply with. In addition, certain of our customer service arrangements may require us to operate, on behalf of a specific customer, petroleum storage units such as underground tanks or pipelines and other regulated units, all of which may impose additional compliance and permitting obligations.

We conduct operations at numerous facilities in a wide variety of locations across the continental U.S. The operations at many of these facilities require environmental permits or other authorizations. Additionally, natural gas compressors at many of our customers’ facilities require individual air permits or general authorizations to operate under various air regulatory programs established by rule or regulation. These permits and authorizations frequently contain numerous compliance requirements, including monitoring and reporting obligations and operational restrictions, such as emission limits. Given the large number of facilities in which we operate, and the numerous environmental permits and other authorizations that are applicable to our operations, we may occasionally identify or be notified of technical violations of certain requirements existing in various permits or other authorizations. Occasionally, we have been assessed penalties for our non-compliance, and we could be subject to such penalties in the future.

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We routinely deal with natural gas, oil and other petroleum products. Hydrocarbons or other hazardous substances or wastes may have been disposed or released on, under or from properties used by us to provide contract operations services or inactive compression storage or on or under other locations where such substances or wastes have been taken for disposal. These properties may be subject to investigatory, remediation and monitoring requirements under environmental laws and regulations.

The modification or interpretation of existing environmental laws or regulations, the more vigorous enforcement of existing environmental laws or regulations, or the adoption of new environmental laws or regulations may also negatively impact oil and natural gas exploration and production, gathering and pipeline companies, including our customers, which in turn could have a negative impact on us.

Climate change legislation and regulatory initiatives could result in increased compliance costs.

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Risks Inherent in an Investment in Our Common Units

Archrock controls our general partner, which has sole responsibility for conducting our business and managing our operations. Archrock has conflicts of interest, which may permit it to favor its own interests to our unitholders’ detriment.

Archrock owns and controls our general partner. Our executive officers are officers of Archrock. Therefore, conflicts of interest may arise between Archrock and its affiliates, including our general partner, on the one hand, and us and our unitholders, on the other hand. In resolving these conflicts of interest, our general partner may favor its own interests and the interests of its affiliates over the interests of our unitholders. These conflicts include, among others, the following situations:


•	neither our partnership agreement nor any other agreement requires Archrock to pursue a business strategy that favors us. Archrock’s directors and officers have a fiduciary duty to make these decisions in the best interests of the owners of Archrock, which may be contrary to our interests;


•	our general partner controls the interpretation and enforcement of contractual obligations between us and our affiliates, on the one hand, and Archrock, on the other hand, including provisions governing administrative services, acquisitions and transfers of compression equipment and non-competition provisions;


•	our general partner controls whether we agree to acquire additional contract operations customers or assets from Archrock that are offered to us by Archrock and the terms of any such acquisition;


•	our general partner is allowed to take into account the interests of parties other than us, such as Archrock and its affiliates, in resolving conflicts of interest;


•	other than as provided in our Omnibus Agreement with Archrock, Archrock and its affiliates are not limited in their ability to compete with us. Archrock will continue to engage in contract operations services as well as third-party sales coupled with aftermarket service contracts and may, in certain circumstances, compete with us with respect to any future acquisition opportunities;


•	Archrock’s contract compression services businesses may compete with us for idle compression equipment and Archrock is under no obligation to offer equipment to us for purchase or use;


•	all of the officers and employees of Archrock who provide services to us also will devote significant time to the business of Archrock, and will be compensated by Archrock for the services rendered to it;


•	our general partner has limited its liability and reduced its fiduciary duties, and has also restricted the remedies available to our unitholders for actions that, without the limitations, might constitute breaches of fiduciary duty;


•	our general partner determines the amount and timing of any asset purchases and sales, borrowings, issuance of additional partnership securities and reserves, each of which can affect the amount of cash that is distributed to unitholders;


•	our general partner determines the amount and timing of any capital expenditures and whether a capital expenditure is a maintenance capital expenditure, which reduces operating surplus, or a growth capital expenditure, which does not reduce operating surplus. This determination can affect the amount of cash that is distributed to our unitholders;


•	our general partner determines which costs incurred by it and its affiliates are reimbursable by us and Archrock determines the allocation of shared overhead expenses;


•	our partnership agreement does not restrict our general partner from causing us to pay it or its affiliates for any services rendered to us or entering into additional contractual arrangements with any of these entities on our behalf;


•	our general partner intends to limit its liability regarding our contractual and other obligations and, in some circumstances, is entitled to be indemnified by us;


•	our general partner may exercise its limited right to call and purchase common units if it and its affiliates own more than 80% of the common units; and


•	our general partner decides whether to retain separate counsel, accountants or others to perform services for us.

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Cost reimbursements due to our general partner and its affiliates for services provided, which are determined by our general partner, are substantial and reduce our cash available for distribution to our unitholders.

Pursuant to our Omnibus Agreement, Archrock receives reimbursement for the payment of operating expenses related to our operations and for the provision of various general and administrative services for our benefit. Payments for these services are substantial and reduce the amount of cash available for distribution to unitholders. In addition, under Delaware partnership law, our general partner has unlimited liability for our obligations, such as our debts and environmental liabilities, except for our contractual obligations that are expressly made without recourse to our general partner. To the extent our general partner incurs obligations on our behalf, we are obligated to reimburse or indemnify it. If we are unable or unwilling to reimburse or indemnify our general partner, our general partner may take actions to cause us to make payments of these obligations and liabilities. Any such payments could reduce the amount of cash otherwise available for distribution to our unitholders.

Our partnership agreement limits our general partner’s fiduciary duties to holders of our common units and restricts the remedies available to holders of our common units for actions taken by our general partner that might otherwise constitute breaches of fiduciary duty.

Our partnership agreement contains provisions that reduce the fiduciary standards to which our general partner would otherwise be held by state fiduciary duty laws. For example, our partnership agreement:

•

permits our general partner to make a number of decisions in its individual capacity, as opposed to in its capacity as our general partner. This entitles our general partner to consider only the interests and factors that it desires, and it has no duty or obligation to give any consideration to any interest of, or factors affecting, us, our affiliates or any limited partner. Examples include the exercise of its limited call right, the exercise of its rights to transfer or vote the units it owns, the exercise of its registration rights and its determination whether or not to consent to any merger or consolidation of the partnership or amendment to our partnership agreement;


•	provides that our general partner will not have any liability to us or our unitholders for decisions made in its capacity as a general partner so long as it acted in good faith, meaning it believed the decision was in the best interests of our partnership;

•

generally provides that affiliated transactions and resolutions of conflicts of interest not approved by the conflicts committee of our board of directors acting in good faith and not involving a vote of unitholders must be on terms no less favorable to us than those generally being provided to or available from unrelated third parties or must be “fair and reasonable” to us, as determined by our general partner in good faith and that, in determining whether a transaction or resolution is “fair and reasonable,” our general partner may consider the totality of the relationships between the parties involved, including other transactions that may be particularly advantageous or beneficial to us;

•

provides that our general partner and its officers and directors will not be liable for monetary damages to us, our limited partners or assignees for any acts or omissions unless there has been a final and non-appealable judgment entered by a court of competent jurisdiction determining that the general partner or those other persons acted in bad faith or engaged in fraud or willful misconduct or, in the case of a criminal matter, acted with knowledge that the conduct was criminal; and


•	provides that in resolving conflicts of interest, it will be presumed that in making its decision the general partner acted in good faith, and in any proceeding brought by or on behalf of any limited partner or us, the person bringing or prosecuting such proceeding will have the burden of overcoming such presumption.

Holders of our common units have limited voting rights and are not entitled to elect our general partner or its general partner’s directors, which could reduce the price at which the common units will trade.

Unlike the holders of common stock in a corporation, unitholders have only limited voting rights on matters affecting our business and, therefore, limited ability to influence management’s decisions regarding our business. Unitholders do not elect our general partner or its general partner’s board of directors, and have no right to elect our general partner or its general partner’s board of directors on an annual or other continuing basis. Our board of directors is chosen by its sole member, a subsidiary of Archrock. Furthermore, if the unitholders are dissatisfied with the performance of our general partner, they have little ability to remove our general partner. As a result of these limitations, the price at which the common units trade could be diminished because of the absence or reduction of a takeover premium in the trading price.

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Even if holders of our common units are dissatisfied, they cannot currently remove our general partner without its consent.

Unitholders are unable to remove our general partner without its consent because our general partner and its affiliates own sufficient units to be able to prevent its removal. The vote of the holders of at least 66 2/3% of all outstanding common units voting together as a single class is required to remove our general partner. As of December 31, 2016, our general partner and its affiliates owned 43% of our aggregate outstanding common units.

Control of our general partner may be transferred to a third party without unitholder consent.

Our general partner, which is indirectly wholly owned by Archrock, may transfer its general partner interest to a third party in a merger, or in a sale of all or substantially all of its assets without the consent of the unitholders. Furthermore, our partnership agreement does not restrict the ability of Archrock, the owner of our general partner, from transferring all or a portion of its ownership interest in our general partner to a third party. The new owners of our general partner would then be in a position to replace the board of directors and officers of our general partner’s general partner with its own choices and thereby influence the decisions taken by the board of directors and officers.

We may issue additional units without unitholder approval, which would dilute our unitholders’ existing ownership interests.

Our partnership agreement does not limit the number of additional limited partner interests that we may issue at any time without the approval of our unitholders. The issuance of additional common units or other equity securities of equal or senior rank by us will have the following effects:


•	our unitholders’ proportionate ownership interest in us will decrease;


•	the amount of cash available for distribution on each unit may decrease;


•	the ratio of taxable income to distributions may increase;


•	the relative voting strength of each previously outstanding unit may be diminished; and


•	the market price of the common units may decline.

Our partnership agreement restricts the voting rights of unitholders owning 20% or more of our common units, other than our general partner and its affiliates, including Archrock.

Unitholders’ voting rights are further restricted by our partnership agreement provision providing that any units held by a person that owns 20% or more of any class of units then outstanding, other than our general partner, its affiliates, including Archrock, their transferees and persons who acquired such units with the prior approval of our board of directors, cannot vote on any matter. Our partnership agreement also contains provisions limiting the ability of unitholders to call meetings or to acquire information about our operations, as well as other provisions.

Affiliates of our general partner may sell common units in the public or private markets, which could have an adverse impact on the trading price of the common units.

At December 31, 2016, Archrock and its affiliates held 29,064,637 common units. The sale of these common units in the public or private markets could have an adverse impact on the price of the common units or on any trading market that may develop.

Our general partner has a limited call right that may require unitholders to sell their units at an undesirable time or price.

If at any time our general partner and its affiliates own more than 80% of the common units, our general partner will have the right, but not the obligation, which it may assign to any of its affiliates or to us, to acquire all, but not less than all, of the common units held by unaffiliated persons at a price not less than their then-current market price. As a result, unitholders may be required to sell their common units at an undesirable time or price and may not receive any return on their investment. Unitholders may also incur a tax liability upon a sale of their units. At December 31, 2016, our general partner and its affiliates owned 43% of our aggregate outstanding common units.

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Unitholder liability may not be limited if a court finds that unitholder action constitutes control of our business.

A general partner of a partnership generally has unlimited liability for the obligations of the partnership, except for those contractual obligations of the partnership that are expressly made without recourse to the general partner. Our partnership is organized under Delaware law and we conduct business in a number of other states. The limitations on the liability of holders of limited partner interests for the obligations of a limited partnership have not been clearly established in some of the other states in which we do business. Unitholders could be liable for any and all of our obligations as if they were a general partner if:


•	a court or government agency determined that we were conducting business in a state but had not complied with that particular state’s partnership statute; or


•	a unitholder’s right to act with other unitholders to remove or replace our general partner, to approve some amendments to our partnership agreement or to take other actions under our partnership agreement constitutes “control” of our business.

Unitholders may have liability to repay distributions that were wrongfully distributed to them.

Under certain circumstances, unitholders may have to repay amounts wrongfully returned or distributed to them. Under Section 17-607 of the Delaware Revised Uniform Limited Partnership Act, we may not make a distribution to our unitholders if the distribution would cause our liabilities to exceed the fair value of our assets. Delaware law provides that for a period of three years from the date of the impermissible distribution, limited partners who received the distribution and who knew at the time of the distribution that it violated Delaware law will be liable to the limited partnership for the distribution amount. Substituted limited partners are liable for the obligations of the assignor to make contributions to the partnership that are known to the substituted limited partner at the time it became a limited partner and for unknown obligations if the liabilities could be determined from our partnership agreement. Liabilities to partners on account of their partnership interest and liabilities that are non-recourse to the partnership are not counted for purposes of determining whether a distribution is permitted.

The market price of our common units may be influenced by many factors.

Our common units are traded publicly on the NASDAQ Global Select Market under the symbol “APLP.”

The market price of our common units may be influenced by many factors, some of which are beyond our control, including:


•	our quarterly distributions;


•	our quarterly or annual earnings or those of other companies or partnerships in our industry;


•	changes in commodity prices, including oil, natural gas and natural gas liquids;


•	changes in demand for natural gas in the U.S.;


•	loss of a large customer;


•	changes in interest rates;


•	announcements by us or our competitors of significant contracts or acquisitions;


•	changes in accounting standards, policies, guidance, interpretations or principles;


•	tax legislation;


•	general economic conditions;


•	the failure of securities analysts to cover our common units or changes in financial estimates by analysts;


•	future sales of our common units; and


•	the other factors described in these Risk Factors.

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Increases in interest rates could adversely impact our unit price, our ability to issue additional equity or incur debt to make acquisitions or for other purposes, and our ability to make distributions to our unitholders.

As with other yield-oriented securities, our unit price is impacted by the level of our cash distributions and implied distribution yield. The distribution yield is often used by investors to compare and rank related yield-oriented securities for investment decision-making purposes. Therefore, changes in interest rates, either positive or negative, may affect the yield requirements of investors who invest in our units, and a rising interest rate environment could have an adverse impact on our unit price, our ability to issue additional equity or incur debt to make acquisitions or for other purposes and our ability to make distributions to our unitholders.

Tax Risks to Common Unitholders

Our tax treatment depends on our status as a partnership for U.S. federal income tax purposes. We could lose our status as a partnership for a number of reasons, including not having enough “qualifying income.” If the Internal Revenue Service (“IRS”) were to treat us as a corporation for U.S. federal income tax purposes, our cash available for distribution would be substantially reduced.

The anticipated after-tax economic benefit of an investment in our common units depends largely on our being treated as a partnership for U.S. federal income tax purposes. The IRS has made no determination on our partnership status.

Despite the fact that we are a limited partnership under Delaware law, a publicly traded partnership such as us will be treated as a corporation for U.S. federal income tax purposes unless 90% or more of its gross income from its business activities is “qualifying income” under Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). “Qualifying income” includes income and gains derived from the exploration, development, production, processing, transportation, storage and marketing of natural gas and natural gas products or other passive types of income such as interest and dividends. Although we do not believe based upon our current operations that we are treated as a corporation, we could be treated as a corporation for U.S. federal income tax purposes or otherwise subject to taxation as an entity if our gross income is not properly classified as qualifying income, there is a change in our business or there is a change in current law.

If we were treated as a corporation for U.S. federal income tax purposes, we would pay U.S. federal income tax on our taxable income at the corporate tax rate and would likely pay state income tax at varying rates. Further, distributions to unitholders would generally be taxed again as corporate distributions, and no income, gains, losses or deductions would flow through to our unitholders. Therefore, treatment of us as a corporation would result in a material reduction in the distributions and after-tax return to the unitholders, which would cause a substantial reduction in the value of our common units. Because a tax would be imposed upon us as a corporation, our cash available for distribution would be substantially reduced. Our partnership agreement provides that if a law is enacted or existing law is modified or interpreted in a manner that subjects us to taxation as a corporation or otherwise subjects us to additional entity-level taxation, the minimum quarterly distribution amount and the target distribution amounts may be adjusted to reflect the impact of that law on us.

The tax treatment of publicly traded partnerships or an investment in our common units could be subject to potential legislative, judicial or administrative changes and differing interpretations, possibly on a retroactive basis.

The present U.S. federal income tax treatment of publicly traded partnerships, including us, or an investment in our common units may be modified by administrative, legislative or judicial interpretation at any time. From time to time, members of Congress propose and consider substantive changes to the existing U.S. federal income tax laws that could affect publicly traded partnerships. Although there is no current legislative proposal, a prior legislative proposal would have eliminated the qualifying income exception to the treatment of all publicly-traded partnerships as corporations upon which we rely for our treatment as a partnership for U.S. federal income tax purposes.

We have requested and obtained favorable private letter rulings from the IRS with respect to the characterization of certain of our income as “qualifying income.” In addition, on January 24, 2017, final regulations regarding which activities give rise to qualifying income within the meaning of Section 7704 of the Code (the “Final Regulations”) were published in the Federal Register. The Final Regulations are effective as of January 19, 2017, and apply to taxable years beginning on or after January 19, 2017. We do not believe the Final Regulations affect our ability to be treated as a partnership for U.S. federal income tax purposes. However, any modification to the U.S. federal income tax laws may be applied retroactively and could make it more difficult or impossible for us to meet the exception for certain publicly traded partnerships to be treated as partnerships for U.S. federal income tax purposes.

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We are unable to predict whether any of these changes or other proposals will ultimately be enacted. Any similar or future legislative changes could cause us to be treated as a corporation for U.S. federal income tax purposes or otherwise subject us to taxation as an entity if our gross income is not properly classified as qualifying income and could negatively impact the value of an investment in our common units. If we were treated as a corporation for U.S. federal income tax purposes, we would pay federal income tax on our taxable income at the corporate rate. Further, distributions to unitholders would generally be taxed as corporate distributions, and no income, gains, losses or deductions would flow through to our unitholders. Therefore, treatment of us as a corporation would result in a material reduction in the distributions and after-tax return to the unitholders, which would cause a substantial reduction in the value of our common units. Our partnership agreement provides that if a law is enacted or existing law is modified or interpreted in a manner that subjects us to taxation as a corporation or otherwise subjects us to additional entity-level taxation, the minimum quarterly distribution amount and the target distribution amounts may be adjusted to reflect the impact of that law on us.

If we were subjected to additional entity-level taxation by individual states, it would reduce our cash available for distribution.

Changes in current state law may subject us to additional entity-level taxation by individual states. Because of widespread state budget deficits and other reasons, several states are evaluating ways to subject partnerships to entity-level taxation through the imposition of state income, franchise and other forms of taxation. Currently we are subject to income and franchise taxes in several states. Imposition of such taxes on us reduces the cash available for distribution to our unitholders and may adversely affect the value of our common units. Our partnership agreement provides that if a law is enacted or existing law is modified or interpreted in a manner that subjects us to additional amounts of entity-level taxation, the minimum quarterly distribution amount and the target distribution amounts may be adjusted to reflect the impact of that law on us.

If the IRS contests the U.S. federal income tax positions we take, the market for our common units may be adversely affected, and the costs of any IRS contest will reduce our cash available for distribution. Recently enacted legislation alters the procedures for assessing and collecting taxes due for taxable years beginning after December 31, 2017, in a manner that could substantially reduce cash available for distribution to you.

The IRS has made no determination with respect to our treatment as a partnership for U.S. federal income tax purposes. The IRS may adopt positions that differ from the positions we take. It may be necessary to resort to administrative or court proceedings to sustain some or all of the positions we take, and a court may not agree with some or all of those positions. Any contest with the IRS may materially and adversely impact the market for our common units and the price at which they trade. In addition, the costs of any contest with the IRS will result in a reduction in cash available for distribution and thus will be borne indirectly by our unitholders and our general partner.

Recently enacted legislation applicable to us for taxable years beginning after December 31, 2017 alters the procedures for auditing large partnerships and also alters the procedures for assessing and collecting taxes due (including applicable penalties and interest) as a result of an audit. Unless we are eligible to (and choose to) elect to issue revised Schedules K-1 to our partners with respect to an audited and adjusted return, the IRS may assess and collect taxes (including any applicable penalties and interest) directly from us in the year in which the audit is completed under the new rules. Although our general partner may elect to have our unitholders take such audit adjustments into account in accordance with their interests in us during the tax year under audit, there can be no assurance that such election will be practical, permissible or effective in all circumstances. As a result, our current unitholders may bear some or all of the tax liability resulting from such audit adjustment, even if such unitholders did not own units in us during the tax year under audit. If, as a result of any such audit adjustment, we are required to make payments of taxes, penalties and interest, our cash available for distribution to our unitholders might be substantially reduced.

Unitholders are required to pay taxes on their share of our income even if they do not receive any cash distributions from us.

Because our unitholders are treated as partners to whom we will allocate taxable income, which could be different in amount than the cash we distribute, they will be required to pay any U.S. federal income taxes and, in some cases, state and local income taxes on their share of our taxable income even if they receive no cash distributions from us. Unitholders may not receive cash distributions from us equal to their share of our taxable income or even equal to the actual tax liability that results from that income.

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In response to current market conditions, we may engage in transactions to delever the Partnership and manage our liquidity that may result in income and gain to our unitholders without a corresponding cash distribution. For example, if we sell assets and use the proceeds to repay existing debt or fund capital expenditures, you may be allocated taxable income and gain resulting from the sale without receiving a cash distribution. Further, taking advantage of opportunities to reduce our existing debt, such as debt exchanges, debt repurchases, or modifications of our existing debt could result “cancellation of indebtedness income” (also referred to as “COD income”) being allocated to our unitholders as taxable income. Unitholders may be allocated COD income, and income tax liabilities arising therefrom may exceed cash distributions. The ultimate effect of any such allocations will depend on the unitholder's individual tax position with respect to its units. Unitholders are encouraged to consult their tax advisors with respect to the consequences to them of COD income.

Tax gain or loss on the disposition of our common units could be more or less than expected.

Unitholders who sell common units recognize a gain or loss equal to the difference between the amount realized and their tax basis in those common units. Because distributions in excess of their allocable share of our net taxable income decrease their tax basis in their common units, the amount, if any, of such prior excess distributions with respect to the common units they sell will, in effect, become taxable income to them if they sell such common units at a price greater than their tax basis in those common units, even if the price received is less than the original cost. In addition, because the amount realized includes a unitholder’s share of our nonrecourse liabilities, unitholders who sell their units may incur a tax liability in excess of the amount of cash they receive from the sale.

A substantial portion of the amount realized from the sale of your units, whether or not representing gain, may be taxed as ordinary income to you due to potential recapture items, including depreciation recapture. Thus, you may recognize both ordinary income and capital loss from the sale of your units if the amount realized on a sale of your units is less than your adjusted basis in the units. Net capital loss may only offset capital gains and, in the case of individuals, up to $3,000 of ordinary income per year. In the taxable period in which you sell your units, you may recognize ordinary income from our allocations of income and gain to you prior to the sale and from recapture items that generally cannot be offset by any capital loss recognized upon the sale of units.

Tax-exempt entities and non-U.S. persons face unique tax issues from owning our common units that may result in adverse tax consequences to them.

Investment in common units by tax-exempt entities, such as employee benefit plans and individual retirement accounts (“IRAs”), and non-U.S. persons raises issues unique to them. For example, virtually all of our income allocated to organizations that are exempt from U.S. federal income tax, including IRAs and other retirement plans, will be unrelated business taxable income and will be taxable to them. Distributions to non-U.S. persons will be reduced by withholding taxes imposed at the highest applicable effective tax rate, and non-U.S. persons will be required to file U.S. federal tax returns and pay tax on their share of our taxable income. Tax-exempt entities or a non-U.S. persons should consult their tax advisors before investing in our common units.

We treat each purchaser of our common units as having the same tax benefits without regard to the actual common units purchased. The IRS may challenge this treatment, which could adversely affect the value of the common units.

Due to a number of factors, including our inability to match transferors and transferees of common units, we have adopted depreciation and amortization positions that may not conform to all aspects of existing Treasury Regulations. A successful IRS challenge to those positions could adversely affect the amount of tax benefits available to unitholders. It also could affect the timing of these tax benefits or the amount of gain from the sale of common units and could have a negative impact on the value of our common units or result in audit adjustments to unitholders’ tax returns.

We prorate our items of income, gain, loss and deduction between transferors and transferees of our units each month based upon the ownership of our units on the first day of each month, instead of on the basis of the date a particular unit is transferred. The IRS may challenge this treatment, and, if successful, we would be required to change the allocation of items of income, gain, loss and deduction among our unitholders.

We prorate our items of income, gain, loss and deduction between transferors and transferees of our units each month based upon the ownership of our units on the first day of each month (the “Allocation Date”), instead of on the basis of the date a particular unit is transferred. Similarly, we generally allocate certain deductions for depreciation of capital additions, gain or loss realized on a sale or other disposition of our assets and, in the discretion of the general partner, any other extraordinary item of income, gain, loss or deduction based upon ownership on the Allocation Date. Treasury Regulations allow a similar monthly simplifying convention, but such regulations do not specifically authorize all aspects of our proration method. If the IRS were to challenge our proration method, we may be required to change the allocation of items of income, gain, loss and deduction among our unitholders.

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A unitholder whose units are the subject of a securities loan (e.g. a loan to a “short seller” to cover a short sale of units) may be considered to have disposed of those units. If so, he would no longer be treated for tax purposes as a partner with respect to those units during the period of the loan and may recognize gain or loss from the disposition.

Because there are no specific rules governing the U.S. federal income consequences of loaning a partnership interest, a unitholder whose units are the subject of securities loan may be considered to have disposed of the loaned units. In that case, the unitholder may no longer be treated as a partner for tax purposes with respect to those units and may recognize gain or loss from such disposition during the period of the loan. Moreover, during the period of such loan to the short seller, any of our income, gain, loss or deduction with respect to those units may not be reportable by the unitholder and any cash distributions received by the unitholder for those units could be fully taxable as ordinary income. Unitholders desiring to assure their status as partners and avoid the risk of gain recognition from a securities loan are urged to modify any applicable brokerage account agreements to prohibit their brokers from borrowing their units.

We have adopted certain valuation methodologies in determining unitholder’s allocations of income, gain, loss and deduction. The IRS may challenge these methods or the resulting allocations, and such a challenge could adversely affect the value of our common units.

In determining the items of income, gain, loss and deduction allocable to our unitholders, we must routinely determine the fair market value of our respective assets. Although we may from time to time consult with professional appraisers regarding valuation matters, we make many fair market value estimates using a methodology based on the market value of our common units as a means to measure the fair market value of our respective assets. The IRS may challenge these valuation methods and the resulting allocations of income, gain, loss and deduction.

A successful IRS challenge to these methods or allocations could adversely affect the amount, character and timing of taxable income or loss being allocated to our unitholders. It also could affect the amount of gain from our unitholders’ sale of common units and could have a negative impact on the value of the common units or result in audit adjustments to our unitholders’ tax returns without the benefit of additional deductions.

The sale or exchange of 50% or more of our capital and profits interests during any twelve-month period will result in the termination of our partnership for U.S. federal income tax purposes.

We will be considered to have constructively terminated as a partnership for U.S. federal income tax purposes if there is a sale or exchange of 50% or more of the total interests in our capital and profits within a twelve-month period. For purposes of determining whether the 50% threshold has been met, multiple sales of the same unit will count only once. Our termination would, among other things, result in the closing of our taxable year for all unitholders, which would result in us filing two tax returns for one calendar year. However, pursuant to an IRS relief procedure, the IRS may allow, among other things, a constructively terminated partnership to provide a single Schedule K-1 for the calendar year in which a termination occurs. Our termination could also result in a deferral of depreciation deductions allowable in computing our taxable income. In the case of a unitholder reporting on a taxable year other than a calendar year ending December 31, the closing of our taxable year may also result in more than twelve months of our taxable income or loss being includable in his taxable income for the year of termination. Our termination currently would not affect our classification as a partnership for U.S. federal income tax purposes, but instead, we would be treated as a new partnership for tax purposes. If treated as a new partnership, we must make new tax elections and could be subject to penalties if we are unable to determine that a termination occurred.

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Unitholders may become subject to international, state and local taxes and return filing requirements in jurisdictions where we operate or own or acquire property.

In addition to U.S. federal income taxes, unitholders will likely be subject to other taxes, including international, state and local taxes, unincorporated business taxes and estate, inheritance or intangible taxes that are imposed by the various jurisdictions in which we do business or own or acquire property now or in the future, even if they do not live in any of those jurisdictions. Unitholders will likely be required to file international, state and local income tax returns and pay state and local income taxes in some or all of these jurisdictions. Further, they may be subject to penalties for failure to comply with those requirements. We conduct business and/or own assets in the states of Alabama, Arkansas, California, Colorado, Illinois, Indiana, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Montana, Nebraska, New Mexico, New York, North Dakota, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Utah, West Virginia, Wisconsin and Wyoming. Each of these states, other than Tennessee, Texas and Wyoming, currently imposes a personal income tax on individuals. A majority of these states impose an income tax on corporations and other entities that may be unitholders. As we make acquisitions or expand our business, we may conduct business or own assets in additional states that impose a personal income tax or that impose entity level taxes to which certain unitholders could be subject. It is each unitholder’s responsibility to file all applicable U.S. federal, international, state and local tax returns.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

Our executive office is located at 16666 Northchase Drive, Houston, Texas 77060, and our telephone number is 281-836-8000. We do not own or lease any material facilities or properties. Pursuant to our Omnibus Agreement, we reimburse Archrock for the cost of our pro rata portion of the properties we utilize in connection with our business.

Item 3. Legal Proceedings

Please see Note 16 (“Commitments and Contingencies”) to our Financial Statements for a discussion of litigation related to the Heavy Equipment Statutes, which is incorporated by reference into this Item 3.

In the ordinary course of business, we are also involved in various other pending or threatened legal actions. While management is unable to predict the ultimate outcome of these actions, it believes that any ultimate liability arising from any of these other actions will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to make cash distributions to our unitholders. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to make cash distributions to our unitholders.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common units trade on the NASDAQ Global Select Market under the symbol “APLP.” On February 16, 2017, the closing price of a common unit was $17.75. At the close of business on February 14, 2017, based upon information received from our transfer agent and brokers and nominees, we had 12 registered common unitholders and 10,567 street name holders. The following table sets forth the range of high and low sale prices for our common units and cash distributions declared per common unit for the periods indicated.



	Price Range				Cash Distribution Declared per
	High		Low		Common Unit⁽¹⁾
Year ended December 31, 2015
First Quarter	$	26.00	$	20.58	$	0.5625
Second Quarter	$	27.93	$	22.07	$	0.5675
Third Quarter	$	24.16	$	11.65	$	0.5725
Fourth Quarter	$	20.96	$	10.58	$	0.5725
Years Ended December 31, 2016
First Quarter	$	13.12	$	5.36	$	0.2850
Second Quarter	$	16.00	$	9.61	$	0.2850
Third Quarter	$	15.64	$	12.79	$	0.2850
Fourth Quarter	$	17.47	$	13.43	$	0.2850


⁽¹⁾	Cash distributions declared for each quarter are paid in the following calendar quarter.

For disclosures regarding securities authorized for issuance under equity compensation plans, see Part III, Item 12 (“Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters”) of this Annual Report on Form 10-K.

Cash Distribution Policy

Within 45 days after the end of each quarter, we intend to distribute all of our available cash (as defined in our partnership agreement) to unitholders of record on the applicable record date. However, we do not have a legal obligation to and there is no guarantee that we will pay any specific distribution level on the units in any quarter. Even if our cash distribution policy is not modified or revoked, the amount of distributions paid under our policy and the decision to make any distribution is determined by our general partner on a quarterly basis, taking into consideration the terms of our partnership agreement. We will be prohibited from making any distributions to unitholders if doing so would cause an event of default, or an event of default exists, under our senior secured credit facility.

We make distributions of available cash (as defined in our partnership agreement) from operating surplus in the following manner:


•	first, 98% to the common unitholders, pro rata, and 2% to our general partner, until each unit has received a distribution of $0.4025;


•	second, 85% to all common unitholders, pro rata, and 15% to our general partner, until each unit has received a distribution of $0.4375;


•	third, 75% to all common unitholders, pro rata, and 25% to our general partner, until each unit has received a total of $0.5250; and


•	thereafter, 50% to all common unitholders, pro rata, and 50% to our general partner.

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In order to continue to pay cash distributions at the current rate, we will require available cash of approximately $19.1 million per quarter, or $76.4 million per year, based on the number of common and general partner units outstanding on December 31, 2016.

Unregistered Sales of Equity Securities and Use of Proceeds

None.

Repurchase of Equity Securities

The following table summarizes our repurchases of equity securities during the three months ended December 31, 2016:



Period	Total Number of Units Repurchased⁽¹⁾	Average Price Paid Per Unit		Total Number of Units Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Units yet to be Purchased Under the Publicly Announced Plans or Programs
October 1, 2016 - October 31, 2016	—	$	—	N/A	N/A
November 1, 2016 - November 30, 2016	—	—		N/A	N/A
December 1, 2016 - December 31, 2016	551	16.04		N/A	N/A
Total	551	$	16.04	N/A	N/A


⁽¹⁾	Represents units withheld to satisfy employees’ tax withholding obligations in connection with vesting of phantom units during the period.

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Item 6. Selected Financial Data

The table below shows selected financial data for Archrock Partners, L.P. for each of the years in the five-year period ended December 31, 2016, which has been derived from our audited Financial Statements. The following information should be read together with Management’s Discussion and Analysis of Financial Condition and Results of Operations and the Financial Statements contained in this Annual Report on Form 10-K (in thousands, except per unit data):



	2016⁽¹⁾⁽²⁾			2015⁽¹⁾			2014⁽³⁾			2013⁽¹⁾			2012⁽¹⁾
Statement of Operations Data:
Revenue	$	562,360		$	656,808		$	581,036		$	466,193		$	387,493
Gross margin⁽⁴⁾	352,949			398,316			342,998			264,148			204,333
Depreciation and amortization	153,741			155,786			128,196			103,711			88,298
Long-lived asset impairment⁽⁵⁾	46,258			38,987			12,810			5,350			29,560
Restructuring charges (6)	7,309			—			702			—			—
Goodwill impairment⁽⁷⁾	—			127,757			—			—			—
Selling, general and administrative — affiliates	79,717			85,586			80,521			61,971			49,889
Interest expense	77,863			74,581			57,811			37,068			25,167
Other income, net	(2,594		)	(1,391		)	(74		)	(9,481		)	(35		)
Provision for income taxes	1,412			1,035			1,313			1,506			945
Net income (loss)	(10,757		)	(84,025		)	61,719			64,023			10,509
Weighted average common units outstanding:
Basic	60,450			58,539			54,107			47,651			41,371
Diluted	60,450			58,539			54,109			47,667			41,382
Income (loss) per common unit:
Basic	$	(0.18	)	$	(1.71	)	$	0.89		$	1.18		$	0.14
Diluted	$	(0.18	)	$	(1.71	)	$	0.89		$	1.18		$	0.14
Other Financial Data:
Distributable cash flow⁽⁴⁾	$	175,696		$	190,690		$	177,628		$	152,976		$	117,966
Cash Capital expenditures:
Growth⁽⁸⁾	$	38,445		$	177,373		$	258,636		$	126,635		$	119,460
Maintenance⁽⁹⁾	23,900			51,829			45,316			41,401			38,368
Cash distributions declared and paid per limited partner unit in respective periods	1.4275			2.2600			2.1650			2.0800			2.0000
Balance Sheet Data:
Cash and cash equivalents	$	217		$	472		$	295		$	182		$	142
Working capital⁽¹⁰⁾	39,216			55,928			60,256			46,802			1,661
Total assets⁽¹¹⁾	1,903,374			1,994,653			1,995,713			1,359,460			1,162,854
Long-term debt, net⁽¹¹⁾	1,342,724			1,410,382			1,286,564			749,352			679,818
Partners’ capital	522,173			547,996			683,341			591,755			439,000

⁽¹⁾

In November 2016, April 2015, March 2013, and March 2012, we acquired from Archrock contract operations customer service agreements and a fleet of compressor units used to provide compression services under those agreements. An acquisition of a business from an entity under common control is generally accounted for in accordance with accounting principles generally accepted in the U.S. (“GAAP”) by the acquirer with retroactive application as if the acquisition date was the beginning of the earliest period included in the financial statements. Retroactive effect of these acquisitions was impracticable because such retroactive application would have required significant assumptions in a prior period that cannot be substantiated. Accordingly, our financial statements include the assets acquired, liabilities assumed, revenue and direct operating expenses associated with the acquisitions beginning on the date of each acquisition.

⁽²⁾

In March 2016, we completed an acquisition of contract operations customer service agreements with four customers and a fleet of 19 compressor units used to provide compression services under those agreements comprising approximately 23,000 horsepower. The results of operations attributable to the assets acquired in the March 2016 Acquisition have been included in our consolidated financial statements since the date of acquisition. Please see Note 3 (“Business Acquisitions”) to our Financial Statements for further discussion on these acquisitions.

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⁽³⁾

During 2014, we completed acquisitions of natural gas compression assets, including compressor units from MidCon, L.L.C. (MidCon”), (the “August 2014 MidCon Acquisition”) and (the “April 2014 MidCon Acquisition”), which on a combined basis included a fleet of 499 compressor units, comprising approximately 554,000 horsepower. The results of operations attributable to the assets acquired in the August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition have been included in our consolidated financial statements since the date of acquisition. Please see Note 3 (“Business Acquisitions”) to our Financial Statements for further discussion on these acquisitions.


⁽⁴⁾	Gross margin, and distributable cash flow are non-GAAP financial measures. They are defined, reconciled to net income (loss) and discussed further in “Non-GAAP Financial Measures” below.


⁽⁵⁾	For a discussion of long-lived asset impairments, see Note 13 (“Long-Lived Asset Impairment”) to our Financial Statement of this Annual Report on Form 10-K.


⁽⁶⁾	For a discussion of restructuring charges, see Note 14 (“Restructuring Charges”) to our Financial Statements.


⁽⁷⁾	For a discussion of goodwill impairment, see Note 5 (“Goodwill”) to our Financial Statement of this Annual Report on Form 10-K.

⁽⁸⁾

Growth capital expenditures are made to expand or to replace partially or fully depreciated assets or to expand the operating capacity or revenue of existing or new assets, whether through construction, acquisition or modification. Substantially all of our growth capital expenditures are related to the acquisition cost of new compressor units that we add to our fleet. In addition to the cost of new compressor units, growth capital expenditures can also include the upgrading of major components on an existing compressor unit where the current configuration of the compressor unit is no longer in demand and the compressor unit is not likely to return to an operating status without the capital expenditures. These latter expenditures substantially modify the operating parameters of the compressor unit such that it can be used in applications that it previously was not suited.

⁽⁹⁾

Maintenance capital expenditures are made to maintain the existing operating capacity of our assets and related cash flows further extending the useful lives of the assets. Maintenance capital expenditures are related to the major overhauls of significant components of a compressor unit, such as the engine, compressor, and cooler, that return the components to a like new condition, but do not modify the applications for which the compressor unit was designed.


⁽¹⁰⁾	Working capital is defined as current assets minus current liabilities.

⁽¹¹⁾

During the first quarter of 2016, we adopted Financial Accounting Standards Board Accounting Standards Update No. 2015-06. As a result of this update we reclassified $11.6 million, $13.7 million, $8.6 million and $0.7 million from Intangible and other assets, net to Long-term debt as of December 31, 2015, 2014, 2013, and 2012, respectively. See Note 2 (“Recent Accounting Developments”) for further discussion.

Non-GAAP Financial Measures

We define gross margin as total revenue less cost of sales (excluding depreciation and amortization expense). Gross margin is included as a supplemental disclosure because it is a primary measure used by our management to evaluate the results of revenue and cost of sales (excluding depreciation and amortization expense), which are key components of our operations. We believe gross margin is important because it focuses on the current operating performance of our operations and excludes the impact of the prior historical costs of the assets acquired or constructed that are utilized in those operations, the indirect costs associated with our SG&A activities, the impact of our financing methods and income taxes. Depreciation and amortization expense may not accurately reflect the costs required to maintain and replenish the operational usage of our assets and therefore may not portray the costs from current operating activity. As an indicator of our operating performance, gross margin should not be considered an alternative to, or more meaningful than, net income (loss) as determined in accordance with GAAP. Our gross margin may not be comparable to a similarly titled measure of another company because other entities may not calculate gross margin in the same manner.

Gross margin has certain material limitations associated with its use as compared to net income (loss). These limitations are primarily due to the exclusion of interest expense, depreciation and amortization expense, SG&A expense and impairments. Each of these excluded expenses is material to our consolidated statements of operations. Because we intend to finance a portion of our operations through borrowings, interest expense is a necessary element of our costs and our ability to generate revenue. Additionally, because we use capital assets, depreciation expense is a necessary element of our costs and our ability to generate revenue, and SG&A expenses are necessary to support our operations and required partnership activities. To compensate for these limitations, management uses this non-GAAP measure as a supplemental measure to other GAAP results to provide a more complete understanding of our performance.

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The following table reconciles our net income (loss) to gross margin (in thousands):



	Years Ended December 31,
	2016			2015			2014			2013			2012
Net income (loss)	$	(10,757	)	$	(84,025	)	$	61,719		$	64,023		$	10,509
Depreciation and amortization	153,741			155,786			128,196			103,711			88,298
Long-lived asset impairment	46,258			38,987			12,810			5,350			29,560
Restructuring charges	7,309			—			702			—			—
Goodwill impairment	—			127,757			—			—			—
Selling, general and administrative — affiliates	79,717			85,586			80,521			61,971			49,889
Interest expense	77,863			74,581			57,811			37,068			25,167
Other income, net	(2,594		)	(1,391		)	(74		)	(9,481		)	(35		)
Provision for income taxes	1,412			1,035			1,313			1,506			945
Gross margin	$	352,949		$	398,316		$	342,998		$	264,148		$	204,333

We define distributable cash flow as net income (loss) (a) plus depreciation and amortization expense, impairment charges, restructuring charges, expensed acquisition costs, non-cash SG&A costs, interest expense and any amounts reimbursed to us by Archrock as a result of the caps on cost of sales and SG&A costs provided in the Omnibus Agreement, which amounts are treated as capital contributions from Archrock for accounting purposes, (b) less cash interest expense (excluding amortization of deferred financing fees, amortization of debt discount and non-cash transactions related to interest rate swaps) and maintenance capital expenditures, and (c) excluding gains or losses on asset sales and other items. Distributable cash flow is a supplemental financial measure that management and, we believe, external users of our consolidated financial statements, such as industry analysts, investors, lenders and rating agencies, may use to assess our operating performance as compared to other publicly traded partnerships without regard to historical cost basis. We also believe distributable cash flow is an important liquidity measure because it allows management and external users of our financial statements the ability to compute the ratio of distributable cash flow to the cash distributions declared to all unitholders, including incentive distribution rights, to determine the rate at which the distributable cash flow covers the distribution. Our distributable cash flow may not be comparable to a similarly titled measure of another company because other entities may not calculate distributable cash flow in the same manner.

Distributable cash flow is not a measure of financial performance under GAAP, and should not be considered in isolation or as an alternative to net income (loss), cash flows from operating activities and other measures determined in accordance with GAAP. Items excluded from distributable cash flow are significant and necessary components to the operations of our business, and, therefore, distributable cash flow should only be used as a supplemental measure of our operating performance.

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The following table reconciles our net income (loss) to distributable cash flow (in thousands, except ratios):



	Years Ended December 31,
	2016			2015			2014			2013			2012
Net income (loss)	$	(10,757	)	$	(84,025	)	$	61,719		$	64,023		$	10,509
Depreciation and amortization	153,741			155,786			128,196			103,711			88,298
Long-lived asset impairment	46,258			38,987			12,810			5,350			29,560
Restructuring charges	7,309			—			702			—			—
Goodwill impairment	—			127,757			—			—			—
Cap on operating and selling, general and administrative costs provided by Archrock	—			—			13,850			25,180			24,758
Non-cash selling, general and administrative costs — affiliates	1,203			1,059			1,376			1,174			797
Interest expense	77,863			74,581			57,811			37,068			25,167
Expensed acquisition costs	523			302			2,471			821			695
Less: Gain on sale of property, plant and equipment	(3,585		)	(1,747		)	(2,466		)	(10,140		)	(689		)
Less: Loss on non-cash consideration in March 2016 Acquisition	635			—			—			—			—
Less: Cash interest expense	(73,594		)	(70,181		)	(53,525		)	(32,810		)	(22,761		)
Less: Cash maintenance capital expenditures	(23,900		)	(51,829		)	(45,316		)	(41,401		)	(38,368		)
Distributable cash flow	$	175,696		$	190,690		$	177,628		$	152,976		$	117,966
Distributions declared to all unitholders for the period, including incentive distributions rights	$	71,647		$	154,349		$	136,829		$	112,705		$	91,617
Distributable cash flow coverage⁽¹⁾	2.45		x	1.24		x	1.30		x	1.36		x	1.29		x
Distributable cash flow coverage (without the benefit of the cost caps)⁽²⁾	2.45		x	1.24		x	1.20		x	1.13		x	1.02		x


⁽¹⁾	Defined as distributable cash flow for the period divided by distributions declared to all unitholders for the period, including incentive distribution rights.

⁽²⁾

Defined as distributable cash flow excluding the benefit of the cost caps divided by distributions declared to all unitholders for the period, including incentive distribution rights. The benefit received by us from the caps on operating and selling, general and administrative costs provided by Archrock was $13.9 million, $25.2 million, and $24.8 million during the years ended December 31, 2014, 2013, and 2012, respectively. The caps on operating and SG&A costs provided by Archrock terminated on January 1, 2015.

The following table reconciles our net cash provided by operating activities to distributable cash flow (in thousands):



	Years Ended December 31,
	2016			2015			2014			2013			2012
Net cash provided by operating activities	$	213,029		$	241,166		$	185,764		$	158,286		$	125,217
(Provision for) benefit from doubtful accounts	(2,672		)	(2,255		)	(1,060		)	25			(494		)
Restructuring charges	7,309			—			702			—			—
Cap on operating and selling, general and administrative costs provided by Archrock	—			—			13,850			25,180			24,758
Expensed acquisition costs	523			302			2,471			821			695
Payments for settlement of interest rate swaps that include financing elements	(3,058		)	(3,728		)	(3,793		)	(2,207		)	—
Cash maintenance capital expenditures	(23,900		)	(51,829		)	(45,316		)	(41,401		)	(38,368		)
Changes in assets and liabilities	(15,535		)	7,034			25,010			12,272			6,158
Distributable cash flow	$	175,696		$	190,690		$	177,628		$	152,976		$	117,966

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Financial Statements, the notes thereto, and the other financial information appearing elsewhere in this Annual Report on Form 10-K. The following discussion includes forward-looking statements that involve certain risks and uncertainties. See Part I (“Disclosure Regarding Forward-Looking Statements”) and Part I, Item 1A (“Risk Factors”) in this Annual Report on Form 10-K.

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Overview

We are a Delaware limited partnership formed in June 2006 and are the U.S. market leader in the full-service natural gas compression business. Our contract operations services primarily include designing, sourcing, owning, installing, operating, servicing, repairing and maintaining equipment to provide natural gas compression services to our customers.

Our customers typically contract for our contract operations services on a site-by-site basis for a specific monthly service rate that is reduced if we fail to operate in accordance with the contract terms. Following the initial minimum term for our contract compression services, which is typically around twelve months, contract compression services generally continue on a month to month basis until terminated by either party with 30 days’ advance notice. Our customers generally are required to pay our monthly service fee even during periods of limited or disrupted natural gas flows, which enhances the stability and predictability of our cash flows. See “General Terms of Our Contract Operations Customer Service Agreements,” in Part I, Item 1 (“Business”) of this Annual Report on Form 10-K, for a more detailed description.

Generally, our overall business activity and revenue increase as the demand for natural gas increases. Demand for our compression services is linked more directly to natural gas consumption and production than to exploration activities, which helps limit our direct exposure to commodity price risk. Because we typically do not take title to the natural gas we compress, and the natural gas we use as fuel for our compressors is supplied by our customers, our direct exposure to commodity price risk is further reduced.

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Trends and Outlook

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Certain Key Challenges and Uncertainties

In addition to general market conditions in the oil and natural gas industry and competition in the natural gas compression industry, we believe the following represent some of the key challenges and uncertainties we will face in the near future:

U.S. Market Conditions. As a result of the reduction in capital spending and drilling activity by U.S. producers in 2016, we experienced a decline in operating horsepower and an increase in pricing pressure from our customers during 2016 compared to 2015, though we achieved improved contract operations gross margin percentage and lower selling, general and administrative expense in 2016 compared to 2015, attributable in part to our cost management efforts.

Although, according to the Barclays 2017 Global E&P Spending Outlook, North America upstream spending is expected to increase by 27% in 2017, because compression service providers are a later cycle participant during improving market conditions, we anticipate any significant increase in the demand for our contract operations services will lag an increase in drilling activity. Also, given the operating horsepower declines and pricing pressure experienced in 2016, we expect to see a decline in our contract operations revenue in 2017 compared to 2016.

Capital Requirements and the Availability of External Sources of Capital. We anticipate investing more capital, particularly in new fleet units, in 2017 than we did in 2016 to take advantage of expected improving market conditions during 2017. In order to fund a significant portion of these capital expenditures, we expect to incur borrowings under our senior secured credit facility and we may issue additional debt or equity securities, as appropriate, given market conditions. We have a substantial amount of debt that could limit our ability to fund these capital expenditures. Also, although conditions in the capital and credit markets (both generally and in the oil and gas industry in particular) have improved since the significant decline in oil and natural gas prices in the third quarter of 2014, current conditions could limit our ability to access these markets to raise capital on affordable terms in 2017 and beyond. If we are not successful in raising capital within the time period required or at all, we may not be able to fund these capital expenditures, which could impair our ability to grow or maintain our business.

Cost Management. In January 2016, Archrock determined to undertake a cost reduction program to reduce its on-going operating expenses and in light of then current and expected activity levels. This cost reduction program helped to mitigate the impact of the overall decline in our contract operations business during 2016 as a result of the low commodity price environment. However, maintaining cost reductions continues to be challenging, and there is no guarantee that Archrock’s cost reduction program will continue to result in a reduction of our operating expenses, including the amount of any allocated costs for which we reimburse Archrock under the Omnibus Agreement, or offset any declines in revenue during 2017.

Labor. We have no employees. Archrock provides all operational staff, corporate staff and support services necessary to run our business, and therefore we depend on Archrock’s ability to hire, train and retain qualified personnel. Although Archrock has been able to satisfy personnel needs in these positions thus far, retaining employees in our industry is a challenge. Our ability to grow and to continue to make quarterly distributions will depend in part on Archrock’s success in hiring, training and retaining employees that provide service to us.

Summary of Results

Net income (loss). We generated net losses of $10.8 million and $84.0 million during the years ended December 31, 2016 and 2015, respectively, and net income of $61.7 million during the year ended December 31, 2014. The decrease in the net loss during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to a $127.8 goodwill impairment recorded during the year ended December 31, 2015 and a $5.9 million decrease in Selling, General and Administrative (“SG&A”) expense, partially offset by a $45.4 million decrease in gross margin, a $7.3 million increase in long-lived asset impairments and a $7.3 million increase in restructuring charges. The change in net income (loss) during the year ended December 31, 2015 compared to the year ended December 31, 2014 was primarily due to a $127.8 million goodwill impairment recorded during the year ended December 31, 2015, a $26.2 million increase in long-lived asset impairment, an increase in depreciation expense primarily associated with the acquisitions discussed below and increased interest expense on our revolving credit facility and 2014 Notes, which was partially offset by an increase of $39.7 million in gross margin from the inclusion of the assets acquired in the April 2015 Contract Operations Acquisition and full year results from the assets acquired in the August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition.

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Distributable cash flow. Our distributable cash flow was $175.7 million, $190.7 million and $177.6 million during the years ended December 31, 2016, 2015 and 2014, respectively, and distributable cash flow coverage (distributable cash flow for the period divided by distributions declared to all unitholders for the period, including incentive distribution rights) was 2.45x, 1.24x and 1.30x during the years ended December 31, 2016, 2015 and 2014, respectively. The decrease in distributable cash flow during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to a decrease in gross margin and an increase in cash interest expense, partially offset by a decrease in maintenance capital expenditures and cash SG&A expense. The increase in distributable cash flow coverage was primarily driven by a decrease in distributions declared to all unitholders from $154.3 million during the year ended December 31, 2015 to $71.6 million during the year ended December 31, 2016 partially offset by the decrease in distributable cash flow discussed above. The increase in distributable cash flow during the year ended December 31, 2015 compared to the year ended December 31, 2014 was primarily due to the increase in gross margin discussed above, partially offset by an increase in cash interest expense, a decrease in benefits received from the caps on operating and SG&A costs provided by Archrock that terminated on January 1, 2015 and an increase in maintenance capital expenditures. Additionally, distributable cash flow coverage was impacted by an increase in distributions declared to all unitholders, including incentive distribution rights, from $136.8 million during the year ended December 31, 2014 to $154.3 million during the year ended December 31, 2015. For a reconciliation of distributable cash flow to net income (loss) and net cash provided by operating activities, its most directly comparable financial measures calculated and presented in accordance with GAAP, please see Part II, Item 6 (“Selected Financial Data — Non-GAAP Financial Measures”) of this Annual Report on Form 10-K.

Operating Highlights

The following table summarizes total available horsepower, total operating horsepower, average operating horsepower and horsepower utilization percentages (in thousands, except percentages):



	Years Ended December 31,
	2016		2015		2014
Total Available Horsepower (at period end)⁽¹⁾	3,290		3,320		3,139
Total Operating Horsepower (at period end)⁽¹⁾	2,874		3,030		3,040
Average Operating Horsepower	2,836		3,087		2,710
Horsepower Utilization:
Spot (at period end)	87	%	91	%	97	%
Average	86	%	93	%	95	%


⁽¹⁾	Includes compressor units comprising approximately 1,000, 17,000 and 79,000 horsepower leased from Archrock as of December 31, 2016, 2015 and 2014, respectively. Excludes compressor units comprising approximately 6,000, 12,000 and 100 horsepower leased to Archrock as of December 31, 2016, 2015 and 2014, respectively (see Note 4 (“Related Party Transactions”) to our Financial Statements).

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Financial Results of Operations

The Year Ended December 31, 2016 Compared to the Year Ended December 31, 2015

The following table summarizes our revenue, gross margin, gross margin percentage, expenses and net income (loss) (dollars in thousands):



	Years Ended December 31,
	2016			2015
Revenue	$	562,360		$	656,808
Gross margin⁽¹⁾	352,949			398,316
Gross margin percentage⁽²⁾	63		%	61		%
Expenses:
Depreciation and amortization	$	153,741		$	155,786
Long-lived asset impairment	46,258			38,987
Restructuring charges	7,309			—
Goodwill impairment	—			127,757
Selling, general and administrative — affiliates	79,717			85,586
Interest expense	77,863			74,581
Other income, net	(2,594		)	(1,391		)
Provision for income taxes	1,412			1,035
Net income (loss)	$	(10,757	)	$	(84,025	)


⁽¹⁾	Defined as revenue less cost of sales, excluding depreciation and amortization expense. For a reconciliation of gross margin to net income (loss), its most directly comparable financial measure calculated and presented in accordance with GAAP, please see Part II, Item 6 (“Selected Financial Data — Non-GAAP Financial Measures”) of this Annual Report on Form 10-K.


⁽²⁾	Defined as gross margin divided by revenue.

Revenue. The decrease in revenue for the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily driven by a decline in average operating horsepower and a decrease in rates, driven by a decrease in customer demand due to market conditions partially offset by an increase in revenue due to the inclusion of the results from the April 2015 Contract Operations Acquisition. Average operating horsepower decreased by 8% from approximately 3,087,000 during the year ended December 31, 2015 to approximately 2,836,000 during the year ended December 31, 2016.

Gross margin. The decrease in gross margin during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to the decrease in revenue discussed above, partially offset by a decrease in cost of sales driven by a decrease in repair and maintenance expense and a decrease in lube oil expense. These cost decreases were primarily driven by the decrease in average operating horsepower explained above, a decrease in commodity prices and efficiency gains in lube oil consumption, and cost management initiatives. Gross margin percentage increased primarily due to a decrease in costs associated with the start-up of units, cost management initiatives, and the decrease in lube oil expense explained above.

Depreciation and amortization. The decrease in depreciation and amortization expense during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to decreased depreciation from assets fully reserved or retired, and assets impaired during the year ended December 31, 2016 and the fourth quarter of 2015, partially offset by an increase in depreciation expense from fleet additions and an increase in amortization of customer related intangible assets acquired in connection with our March 2016 Acquisition.

Long-lived asset impairment. During the year ended December 31, 2016, we reviewed the future deployment of our idle compression assets for units that were not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 430 idle compressor units totaling approximately 155,000 horsepower would be retired from the active fleet. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded a $42.5 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

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In connection with our fleet review during 2016, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $3.8 million to reduce the book value of each unit to its estimated fair value.

During the year ended December 31, 2015, we reviewed the future deployment of our idle compression assets for units that were not of the type, configuration, condition, make, or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 330 idle compressor units, representing approximately 115,000 horsepower would be retired from the active fleet. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded a $35.3 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

In connection with our fleet review during 2015, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $3.7 million to reduce the book value of each unit to its estimated fair value.

Restructuring charges. In the first quarter of 2016, Archrock determined to undertake a cost reduction program to reduce its on-going operating expenses, including workforce reductions and closure of certain make ready shops. These actions were the result of Archrock’s review of its business and efforts to efficiently manage cost and maintain its business in line with then current and expected activity levels and anticipated make ready demand in the U.S. market. During the year ended December 31, 2016, we incurred $7.3 million of restructuring charges comprised of an allocation of expenses related to severance benefits and consulting fees associated with this cost reduction plan from Archrock to us pursuant to the terms of the Omnibus Agreement based on horsepower and other factors. See Note 14 (“Restructuring Charges”) to our Financial Statements for further discussion of these charges.

Goodwill impairment. Beginning in late 2014 and extending throughout 2015, the energy markets experienced a significant reduction in oil and natural gas prices which has had a significant impact on the financial performance and operating results of many oil and natural gas companies. Such declines accelerated in the fourth quarter of 2015, resulting in higher borrowing costs for companies and a substantial reduction in forecasted capital spending across the energy industry leading to lower projected growth rates over the short-term. Such declines impacted our future cash flow forecasts, our market capitalization, and the market capitalization of peer companies. We identified these conditions as a triggering event, which required us to perform a goodwill impairment test as of December 31, 2015. Accordingly, as of December 31, 2015, we recorded a full impairment of our goodwill in the fourth quarter of 2015 of $127.8 million. During the first quarter of 2016, we finalized the impairment analysis which did not result in an adjustment to the preliminary impairment booked in the fourth quarter of 2015.

SG&A — affiliates. SG&A expenses are primarily comprised of an allocation of expenses, including costs for personnel support and related expenditures, from Archrock to us pursuant to the terms of the Omnibus Agreement. The decrease in SG&A expense was primarily due to decreased costs allocated to us by Archrock partially offset by a $0.4 million increase in bad debt expense. SG&A expenses represented 14% and 13% of revenue during the years ended December 31, 2016 and 2015, respectively.

Interest expense. The increase in interest expense during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to an increase in the average balance of long-term debt, as well as, an increase in the average effective interest rates period over period.

Other income, net. The increase in other income, net, during the year ended December 31, 2016 as compared to the year ended December 31, 2015 was primarily driven by an increase in gain on sale of property, plant, and equipment of $1.8 million partially offset by a $0.6 million loss on non-cash consideration in the March 2016 Acquisition.

Provision for income taxes. The increase in our provision for income taxes during the year ended December 31, 2016 compared to December 31, 2015 was primarily due to an increase in deferred state taxes caused by accelerated tax depreciation and our inability to fully benefit our taxable losses subject to state level taxation.

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The Year Ended December 31, 2015 Compared to the Year Ended December 31, 2014

The following table summarizes our revenue, gross margin, gross margin percentage, expenses and net income (loss) (dollars in thousands):



	Years Ended December 31,
	2015			2014
Revenue	$	656,808		$	581,036
Gross margin⁽¹⁾	398,316			342,998
Gross margin percentage⁽²⁾	61		%	59		%
Expenses:
Depreciation and amortization	$	155,786		$	128,196
Long-lived asset impairment	38,987			12,810
Restructuring charges	—			702
Goodwill impairment	127,757			—
Selling, general and administrative — affiliates	85,586			80,521
Interest expense	74,581			57,811
Other income, net	(1,391		)	(74		)
Provision for income taxes	1,035			1,313
Net income (loss)	$	(84,025	)	$	61,719


⁽¹⁾	Defined as revenue less cost of sales, excluding depreciation and amortization expense. For a reconciliation of gross margin to net income (loss), its most directly comparable financial measure calculated and presented in accordance with GAAP, please see Part II, Item 6 (“Selected Financial Data — Non-GAAP Financial Measures”) of this Annual Report on Form 10-K.


⁽²⁾	Defined as gross margin divided by revenue.

Revenue. The increase in revenue and average operating horsepower was primarily due to the inclusion of the assets acquired in the April 2015 Contract Operations Acquisition and full year results from the assets acquired in the August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition. Average operating horsepower increased by 14% from approximately 2,710,000 during the year ended December 31, 2014 to approximately 3,087,000 during the year ended December 31, 2015.

Gross margin. The increase in gross margin and gross margin percentage during the year ended December 31, 2015 compared to the year ended December 31, 2014 were primarily due to the increase in revenue discussed above.

Depreciation and amortization. The increase in depreciation and amortization expense during the year ended December 31, 2015 compared to the year ended December 31, 2014 was primarily due to additional depreciation expense on compression equipment additions, including the assets acquired in the April 2015 Contract Operations Acquisition, the August 2014 MidCon Acquisition, and the April 2014 MidCon Acquisition and additional amortization expense attributable to intangible assets acquired in the April 2015 Contract Operations Acquisition, the August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition.

Long-lived asset impairment. During the year ended December 31, 2015, we reviewed the future deployment of our idle compression assets for units that were not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 330 idle compressor units totaling approximately 115,000 horsepower would be retired from the active fleet. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded a $35.3 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

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During the year ended December 31, 2014, we evaluated the future deployment of our idle fleet and determined to retire and either sell or re-utilize the key components of approximately 110 idle compressor units, representing approximately 30,000 horsepower, previously used to provide services. As a result, we performed an impairment review and recorded a $10.1 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

In connection with our fleet review during 2014, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $2.3 million to reduce the book value of each unit to its estimated fair value.

During the year ended December 31, 2014 we evaluated other long-lived assets for impairment and recorded long-lived asset impairments of $0.4 million on these assets.

Restructuring charges. In January 2014, Archrock announced a plan to centralize its make-ready operations to improve the cost and efficiency of its shops and further enhance the competitiveness of our and Archrock’s combined U.S. compressor fleet. As part of this plan, Archrock examined both then recent and anticipated changes in the U.S. market, including the throughput demand of its shops and the addition of new equipment to our and Archrock’s combined U.S. compressor fleet. To better align its costs and capabilities with the market, Archrock determined to close several of its make-ready shops. The centralization of its make-ready operations was completed in the second quarter of 2014. During the year ended December 31, 2014, we incurred $0.7 million of restructuring charges comprised of an allocation of expenses, including termination benefits associated with the centralization of Archrock’s make-ready operations, from Archrock to us pursuant to the terms of the Omnibus Agreement based on revenue and horsepower. See Note 14 (“Restructuring Charges”) to our Financial Statements for further discussion of these charges.

Goodwill impairment. Beginning in late 2014 and extending throughout 2015, the energy markets experienced a significant reduction in oil and natural gas prices which has had a significant impact on the financial performance and operating results of many oil and natural gas companies. Such declines accelerated in the fourth quarter of 2015, resulting in higher borrowing costs for companies and a substantial reduction in forecasted capital spending across the energy industry leading to lower projected growth rates over the short-term. Such declines impacted our future cash flow forecasts, our market capitalization, and the market capitalization of peer companies. We identified these conditions as a triggering event, which required us to perform a goodwill impairment test as of December 31, 2015. The test indicated that our contract operations reporting unit goodwill was impaired and therefore we recorded a full impairment of our goodwill in the fourth quarter of 2015 of $127.8 million which is presented in goodwill impairment on the consolidated statement of operations.

SG&A — affiliates. SG&A expenses are primarily comprised of an allocation of expenses, including costs for personnel support and related expenditures, from Archrock to us pursuant to the terms of the Omnibus Agreement. The increase in SG&A expense was primarily due to increased costs allocated to us by Archrock and a $1.2 million increase in bad debt expense. SG&A expenses represented 13% and 14% of revenue during the years ended December 31, 2015 and 2014, respectively.

Interest expense. The increase in interest expense during the year ended December 31, 2015 compared to the year ended December 31, 2014 was primarily due to a higher average long-term debt balance.

Other income, net. The increase in other income, net during the year ended December 31, 2015 as compared to the year ended December 31, 2014 was primarily due to decreased business acquisition costs, partially offset by a $0.7 million reduction in gain on sale of property, plant, and equipment. During 2015, we incurred $0.3 million of transaction costs associated with the April 2015 Contract Operations Acquisition and during 2014, we incurred $2.5 million of transaction costs associated with the August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition.

Provision for income taxes. The decrease in our provision for income taxes during the year ended December 31, 2015 compared to the year ended December 31, 2014 was primarily due to a reduction in the Texas margin tax rate from 1.0% to 0.75% in the second quarter of 2015, partially offset by an increase in income subject to state-level taxation during the year ended December 31, 2015 compared to the year ended December 31, 2014.

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Liquidity and Capital Resources

The following tables summarize our sources and uses of cash during the years ended December 31, 2016 and 2015, and our cash and working capital as of the end of the periods presented (in thousands):



	Years Ended December 31,
	2016			2015
Net cash provided by (used in):
Operating activities	$	213,029		$	241,166
Investing activities	(47,266		)	(213,287		)
Financing activities	(166,018		)	(27,702		)
Net change in cash and cash equivalents	$	(255	)	$	177



	December 31,
	2016		2015
Cash and cash equivalents	$	217	$	472
Working capital	39,216		55,928

Operating Activities. The decrease in net cash provided by operating activities was primarily due to the decrease in gross margin and an increase in restructuring charges, partially offset by a decrease in accounts receivable in the current period as compared to an increase in accounts receivable in the prior period and a decrease in cash SG&A expense.

Investing Activities. The decrease in net cash used in investing activities during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to a $166.9 million decrease in capital expenditures and a $15.3 million increase in proceeds from sale of property, plant and equipment, partially offset by a $13.8 million payment for the March 2016 Acquisition. Capital expenditures during the year ended December 31, 2016 were $62.3 million, consisting of $38.4 million for fleet growth capital and $23.9 million for compressor maintenance activities.

Financing Activities. The increase in net cash used in financing activities during the year ended December 31, 2016 compared to the year ended December 31, 2015 was primarily due to $71.0 million of net repayments of long-term debt during the year ended December 31, 2016 compared to $120.5 million of net borrowings of long-term debt during the year ended December 31, 2015, partially offset by a $57.8 million decrease in distributions to unitholders.

Working Capital. The decrease in working capital at December 31, 2016 compared to December 31, 2015 was primarily due to a $15.2 million decrease in accounts receivable and a $2.0 million increase in due to affiliates, net, which was partially offset by a $1.3 million decrease in current portion of interest rate swaps.

Capital Requirements. The natural gas compression business is capital intensive, requiring significant investment to maintain and upgrade existing operations. Our capital spending is dependent on the demand for our services and the availability of the type of compression equipment required for us to render those services to our customers. Our capital requirements have consisted primarily of, and we anticipate will continue to consist of, the following:


•	growth capital expenditures, which are made to expand or to replace partially or fully depreciated assets or to expand the operating capacity or revenue generating capabilities of existing or new assets, whether through construction, acquisition or modification; and


•	maintenance capital expenditures, which are made to maintain the existing operating capacity of our assets and related cash flows further extending the useful lives of the assets.

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A majority of our growth capital expenditures are related to the acquisition cost of new compressor units that we add to our fleet. In addition to the cost of new compressor units, growth capital expenditures can also include the upgrading of major components on an existing compressor unit where the current configuration of the compressor unit is no longer in demand and the compressor is not likely to return to an operating status without the capital expenditures. These latter expenditures substantially modify the operating parameters of the compressor unit such that it can be used in applications for which it previously was not suited. Maintenance capital expenditures are related to major overhauls of significant components of a compressor unit, such as the engine, compressor, and cooler, that return the components to a like new condition, but do not modify the applications for which the compressor unit was designed.

Growth capital expenditures were $38.4 million, $177.4 million and $258.7 million for the years ended December 31, 2016, 2015 and 2014, respectively. The decrease in growth capital expenditures during the year ended December 31, 2016 compared to the year ended December 31, 2015 and the year ended December 31, 2015 compared to the year ended December 31, 2014 was primarily driven by our customers’ reduced capital spending in 2016 and 2015 when compared to 2014 as a result of the significant decline in oil and natural gas prices since the third quarter of 2014. We anticipate investing more capital in new fleet units in 2017 than we did in 2016 to take advantage of opportunities as market conditions improve.

Maintenance capital expenditures were $23.9 million, $51.8 million and $45.3 million in the years ended December 31, 2016, 2015 and 2014, respectively. The decrease in maintenance capital expenditures from December 31, 2016 compared to December 31, 2015 was primarily driven by our focus on disciplined capital spending in light of market conditions coupled with a decrease in average operating horsepower from 3.1 million during the year ended December 31, 2015 to 2.8 million during the year ended December 31, 2016. The increase in maintenance capital expenditures from December 31, 2015 compared to December 31, 2014, was primarily related to the April 2015 Contract Operations Acquisition and organic growth in our compressor unit fleet. If we are successful in growing our business in the future, we would expect our maintenance capital expenditures to increase in the future. We intend to continue to grow our business both organically and through acquisitions.

Without giving effect to any equipment we may acquire pursuant to any future acquisition, we currently plan to make approximately $150 million to $175 million in capital expenditures during 2017, including (1) approximately $115 million to $135 million on growth capital expenditures and (2) approximately $35 million to $40 million on equipment maintenance capital expenditures. Archrock manages its and our respective U.S. fleets as one pool of compression equipment from which we can each readily fulfill our respective customers’ service needs. When we or Archrock are advised of a contract operations services opportunity, Archrock reviews both our and its fleet for an available and appropriate compressor unit. The majority of the idle compression equipment required for servicing these contract operations services has been and is currently held by Archrock. The owner of the equipment being transferred is required to pay the costs associated with making the idle equipment suitable for the proposed customer and then has generally leased the equipment to the recipient of the equipment or exchanged the equipment for other equipment of the recipient. Because Archrock has owned the majority of such equipment, Archrock has generally had to bear a larger portion of the maintenance capital expenditures associated with making transferred equipment ready for service. For equipment that is then leased, the maintenance capital cost is a component of the lease rate that is paid under the lease. If we acquire more compression equipment, we expect that more of our equipment will be available to satisfy our or Archrock’s customer requirements. As a result, we expect that our maintenance capital expenditures will continue to increase and that our lease expense will decrease.

In addition, our capital requirements include funding distributions to our unitholders, which we anticipate will be funded through cash provided by operating activities and borrowings under our senior secured credit facility. Given our objective of long-term growth through acquisitions, growth capital expenditure projects and other internal growth projects, we anticipate that over time we will continue to invest capital to grow and acquire assets. We expect to actively consider a variety of assets for potential acquisitions and growth projects. We expect to fund these future capital expenditures with borrowings under our senior secured credit facility and the issuance of additional debt and equity securities, as appropriate, given market conditions. The timing of future capital expenditures will be based on the economic environment, including the availability of debt and equity capital. We expect that we will be able to generate cash or borrow adequate amounts of cash under our senior secured credit facility to meet our liquidity needs through December 31, 2017; however, to the extent we are not able to satisfy our liquidity needs with cash from operations or borrowings under the senior secured credit facility, we may seek additional external financing.

Termination of Cost Caps. Under the Omnibus Agreement, our obligation to reimburse Archrock for any cost of sales that it incurred in the operation of our business and any cash SG&A expense allocated to us was capped (after taking into account any such costs we incurred and paid directly) through December 31, 2014. We have been in the past dependent on our cost caps to generate sufficient cash from operating surplus to enable us to make cash distributions approximating our current distribution rate. The benefit received by us from the caps on operating and SG&A costs provided by Archrock was $13.9 million during the year ended December 31, 2014. These cost caps were in effect through December 31, 2014; however, effective January 1, 2015, the cost caps provisions of the Omnibus Agreement terminated. Their termination could reduce the amount of cash flow available to unitholders and, accordingly, could impair our ability to maintain our distributions.

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Our Ability to Grow Depends on Our Ability to Access External Growth Capital. We expect that we will rely primarily upon external financing sources, including our senior secured credit facility and the issuance of debt and equity securities, rather than cash reserves established by our general partner, to fund our acquisitions and growth capital expenditures. Our ability to access the capital markets may be restricted at a time when we would like, or need, to do so, which could have an impact on our ability to grow.

We intend to distribute all of our available cash to our unitholders. Available cash is reduced by cash reserves established by our general partner to provide for the proper conduct of our business, including future capital expenditures. To the extent we are unable to finance growth externally and we are unwilling to establish cash reserves to fund future acquisitions, our cash distribution policy will significantly impair our ability to grow. Because we distribute all of our available cash, we may not grow as quickly as businesses that reinvest their available cash to expand ongoing operations. To the extent we issue additional units in connection with any acquisitions or growth capital expenditures, the payment of distributions on those additional units may increase the risk that we will be unable to maintain our per unit distribution level, which in turn may impact the available cash that we have to distribute for each unit. There are no limitations in our partnership agreement or in the terms of our senior secured credit facility on our ability to issue additional units, including units ranking senior to our common units.

Long-Term Debt. In November 2010, we amended and restated our Credit Agreement to provide for a five-year $550.0 million senior secured credit facility, consisting of a $400.0 million revolving credit facility and a $150.0 million term loan facility. The revolving borrowing capacity under this facility increased to $550.0 million in March 2011 and to $750.0 million in March 2012. We amended our Credit Agreement in March 2013 to reduce the borrowing capacity under our revolving credit facility to $650.0 million and extend the maturity date of the term loan and revolving credit facilities to May 2018. In February 2015, we amended our Credit Agreement, which among other things, increased the borrowing capacity under the revolving credit facility to $900.0 million. In May 2016, we further amended our Credit Agreement to, among other things, decrease the borrowing capacity under the revolving credit facility to $825.0 million. Prior to this amendment, we were able to increase the aggregate commitments under the Credit Agreement by up to an additional $50.0 million subject to certain conditions, including the approval of the lenders. As a result of this amendment and subject to certain conditions, including the approval of the lenders, we are able to increase the aggregate commitments under the Credit Agreement by up to an additional $125.0 million. As of December 31, 2016, we had undrawn and available capacity of $315.5 million under our revolving credit facility.

The revolving credit and term loan facilities bear interest at a base rate or the London Interbank Offered Rate (“LIBOR”), at our option, plus an applicable margin. Depending on our leverage ratio, the applicable margin for the revolving and term loans varies (i) in the case of LIBOR loans, from 2.0% to 3.0% and (ii) in the case of base rate loans, from 1.0% to 2.0%. The base rate is the highest of the prime rate announced by Wells Fargo Bank, National Association, the Federal Funds Effective Rate plus 0.5% and one-month LIBOR plus 1.0%. At December 31, 2016, all amounts outstanding under these facilities were LIBOR loans and the applicable margin was 3%. The weighted average annual interest rate on the outstanding balance under these facilities at December 31, 2016 and 2015, excluding the effect of interest rate swaps, was 3.7% and 2.8%, respectively. During the years ended December 31, 2016 and 2015, the average daily debt balance under these facilities was $723.3 million and $667.3 million, respectively.

Borrowings under the Credit Agreement are secured by substantially all of the U.S. personal property assets of us and our Significant Domestic Subsidiaries (as defined in the Credit Agreement), including all of the membership interests of our Domestic Subsidiaries (as defined in the Credit Agreement).

The Credit Agreement contains various covenants with which we must comply, including, but not limited to, restrictions on the use of proceeds from borrowings and limitations on our ability to incur additional indebtedness, engage in transactions with affiliates, merge or consolidate, sell assets, make certain investments and acquisitions, make loans, grant liens, repurchase equity and pay dividends and distributions. The Credit Agreement also contains various covenants, which have been amended effective March 31, 2016, requiring mandatory prepayments from the net cash proceeds of certain asset transfers. In addition, if as of any date we have cash and cash equivalents (other than proceeds from a debt or equity issuance in the 30 days prior to such date reasonably expected to be used to fund an acquisition permitted under the Credit Agreement) in excess of $50.0 million, then such excess amount will be used to pay down outstanding borrowings of a corresponding amount under the revolving credit facility.

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If we were to anticipate non-compliance with these financial ratios, we may take actions to maintain compliance with them, including reductions in our general and administrative expenses, our capital expenditures or the payment of cash distributions at our current distribution rate. Any of these measures could have an adverse effect on our operations, cash flows and the price of our common units. A default under one of our debt agreements would trigger cross-default provisions under our other debt agreements, which would accelerate our obligation to repay our indebtedness under those agreements. In addition, a material adverse effect on our assets, liabilities, financial condition, business or operations that, taken as a whole, impacts our ability to perform our obligations under the Credit Agreement, could lead to a default under that agreement. As of December 31, 2016, we were in compliance with all financial covenants under the Credit Agreement.

In March 2013, we issued $350.0 million aggregate principal amount of the 2013 Notes. We used the net proceeds of $336.9 million, after original issuance discount and issuance costs, to repay borrowings outstanding under our revolving credit facility. The 2013 Notes were issued at an original issuance discount of $5.5 million, which is being amortized using the effective interest method at an interest rate of 6.25% over their term. In January 2014, holders of the 2013 Notes exchanged their 2013 Notes for registered notes with the same terms.

Prior to April 1, 2017, we may redeem all or a part of the 2013 Notes at a redemption price equal to the sum of (i) the principal amount thereof, plus (ii) a make-whole premium at the redemption date, plus accrued and unpaid interest, if any, to the redemption date. On or after April 1, 2017, we may redeem all or a part of the 2013 Notes at redemption prices (expressed as percentages of principal amount) equal to 103.00% for the twelve-month period beginning on April 1, 2017, 101.500% for the twelve-month period beginning on April 1, 2018 and 100.00% for the twelve-month period beginning on April 1, 2019 and at any time thereafter, plus accrued and unpaid interest, if any, to the applicable redemption date of the 2013 Notes.

Prior to April 1, 2018, we may redeem all or a part of the 2014 Notes at a redemption price equal to the sum of (i) the principal amount thereof, plus (ii) a make-whole premium at the redemption date, plus accrued and unpaid interest, if any, to the redemption date. In addition, we may redeem up to 35% of the aggregate principal amount of the 2014 Notes prior to April 1, 2017 with the net proceeds of one or more equity offerings at a redemption price of 106.00% of the principal amount of the 2014 Notes, plus any accrued and unpaid interest to the date of redemption, if at least 65% of the aggregate principal amount of the 2014 Notes issued under the indenture remains outstanding after such redemption and the redemption occurs within 180 days of the date of the closing of such equity offering. On or after April 1, 2018, we may redeem all or a part of the 2014 Notes at redemption prices (expressed as percentages of principal amount) equal to 103.00% for the twelve-month period beginning on April 1, 2018, 101.500% for the twelve-month period beginning on April 1, 2019 and 100.00% for the twelve-month period beginning on April 1, 2020 and at any time thereafter, plus accrued and unpaid interest, if any, to the applicable redemption date of the 2014 Notes.

The 2013 Notes and the 2014 Notes are guaranteed on a senior unsecured basis by all of our existing subsidiaries (other than APLP Finance Corp., which is a co-issuer of the 2013 Notes and the 2014 Notes) and certain of our future subsidiaries. The 2013 Notes and the 2014 Notes and the guarantees, respectively, are our and the guarantors’ general unsecured senior obligations, rank equally in right of payment with all of our and the guarantors’ other senior obligations, and are effectively subordinated to all of our and the guarantors’ existing and future secured debt to the extent of the value of the collateral securing such indebtedness. In addition, the 2013 Notes and the 2014 Notes and guarantees are effectively subordinated to all existing and future indebtedness and other liabilities of any future non-guarantor subsidiaries. All of our subsidiaries are 100% owned, directly or indirectly, by us and guarantees by our subsidiaries are full and unconditional (subject to customary release provisions as discussed in Note 8 (“Long-Term Debt”) to our Financial Statements) and constitute joint and several obligations. We have no assets or operations independent of our subsidiaries, and there are no significant restrictions upon our subsidiaries’ ability to distribute funds to us.

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We have entered into interest rate swap agreements to offset changes in expected cash flows due to fluctuations in the interest rates associated with our variable rate debt. At December 31, 2016, we were a party to interest rate swaps with a notional value of $500.0 million, pursuant to which we make fixed payments and receive floating payments. Our interest rate swaps expire over varying dates, with interest rate swaps having a notional amount of $300.0 million expiring in May 2018, interest rate swaps having a notional amount of $100.0 million expiring in May 2019, and the remaining interest rate swaps having a notional amount of $100.0 million expiring in May 2020. As of December 31, 2016, the weighted average effective fixed interest rate on our interest rate swaps was 1.6%. See Part II, Item 7A (“Quantitative and Qualitative Disclosures About Market Risk”) of this Annual Report on Form 10-K for further discussion of our interest rate swap agreements.

We may from time to time seek to retire or purchase our outstanding debt through cash purchases and/or exchanges for equity securities, in open market purchases, privately negotiated transactions or otherwise. Such repurchases or exchanges, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. The amounts involved may be material.

Issuance and Sales of Partnership Units. On November 19, 2016, the partnership completed the November 2016 Contract Operations Acquisition. Total consideration for the transaction was $85.0 million, excluding transaction costs. In connection with the acquisition, we issued approximately 5.5 million common units to Archrock and approximately 111,000 general partner units to our general partner so it could maintain its approximate 2% general partner interest in us.

On September 30, 2016, we issued and sold 1,158 general partner units to our general partner so it could maintain its approximate 2% general partner interest in us.

On March 1, 2016, the Partnership completed the March 2016 Acquisition. A portion of the $18.8 million purchase price was funded through the issuance of 257,000 common units for $1.8 million. In connection with this acquisition, we issued and sold 5,205 general partner units to our general partner so it could maintain its approximate 2% general partner interest in us.

In May 2015, we entered into an At-The-Market Equity Offering Sales Agreement (the “ATM Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., J.P. Morgan Securities LLC, RBC Capital Markets, LLC and Wells Fargo Securities, LLC (the “Sales Agents”). During the year ended December 31, 2015, we sold 49,774 common units for net proceeds of $1.2 million pursuant to the ATM Agreement. We did not make any sales under the ATM Agreement during 2016 and the ATM Agreement expired pursuant to its terms on June 21, 2016.

In April 2015, we completed the April 2015 Contract Operations Acquisition from Archrock. In connection with this acquisition we issued approximately 4.0 million common units to Archrock and approximately 80,000 general partner units to our general partner.

In April 2014, we sold, pursuant to a public underwritten offering, 6,210,000 common units, including 810,000 common units pursuant to an over-allotment option. We received net proceeds of $169.5 million, after deducting underwriting discounts, commissions and offering expenses, which we used to fund a portion of the April 2014 MidCon Acquisition. In connection with this sale and as permitted under our partnership agreement, we issued and sold approximately 126,000 general partner units to our general partner so it could maintain its approximate 2% general partner interest in us. We received net proceeds of $3.6 million from the general partner contribution which we used to repay borrowings outstanding under our revolving credit facility.

Distributions to Unitholders. Our partnership agreement requires us to distribute all of our “available cash” quarterly. Under our partnership agreement, available cash is defined generally to mean, for each fiscal quarter, (i) our cash on hand at the end of the quarter in excess of the amount of reserves our general partner determines is necessary or appropriate to provide for the conduct of our business, to comply with applicable law, any of our debt instruments or other agreements or to provide for future distributions to our unitholders for any one or more of the upcoming four quarters, plus, (ii) if our general partner so determines, all or a portion of our cash on hand on the date of determination of available cash for the quarter.

On January 19, 2017, our board of directors approved a cash distribution of $0.2850 per limited partner unit, or approximately $19.1 million. The distribution covers the period from October 1, 2016 through December 31, 2016. The record date for this distribution was February 8, 2017 and payment was made on February 14, 2017. The amount of our cash distributions will be determined by our board of directors on a quarterly basis, taking into account a number of factors. Therefore, there is no guarantee that we will continue to pay cash distributions to our unitholders at the current level, or at all.

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Pursuant to the Omnibus Agreement, our obligation to reimburse Archrock for cost of sales and SG&A expenses was capped through December 31, 2014 (see Note 4 (“Related Party Transactions” to our Financial Statements). Our cost of sales exceeded the cap provided in the Omnibus Agreement by $2.5 million during the year ended December 31, 2014. Our SG&A expenses exceeded the cap provided in the Omnibus Agreement by $11.4 million during the year ended December 31, 2014. Accordingly, distributable cash flow (please see Part II, Item 6 (“Selected Financial Data — Non-GAAP Financial Measures”) of this Annual Report on Form 10-K for a discussion of distributable cash flow) would have been approximately $13.9 million lower during the year ended December 31, 2014 without the benefit of the cost caps. As a result, without the benefit of the cost caps, our distributable cash flow coverage (distributable cash flow for the period divided by distributions declared to all unitholders for the period, including incentive distribution rights) would have been 1.20x during the year ended December 31, 2014, rather than the actual distributable cash flow coverage (which includes the benefit of cost caps) of 1.30x during the year ended December 31, 2014. The cost caps provided in the Omnibus Agreement were in effect through December 31, 2014; however, effective January 1, 2015, these provisions of the Omnibus Agreement terminated.

In 2011, the Texas Legislature enacted changes related to the appraisal of natural gas compressors for ad valorem tax purposes by expanding the definitions of “Heavy Equipment Dealer” and “Heavy Equipment” effective from the beginning of 2012 (the “Heavy Equipment Statutes”). Under the revised statutes, we believe we are a Heavy Equipment Dealer, that our natural gas compressors are Heavy Equipment and that we, therefore, are required to file our ad valorem taxes under this new methodology. We further believe that our natural gas compressors are taxable under the Heavy Equipment Statutes in the counties where we maintain a business location and keep natural gas compressors instead of where the compressors may be located on January 1 of a tax year. A large number of appraisal review boards denied our position, and we filed petitions for review in the appropriate district courts. See Part I, Item 3 (“Legal Proceedings”) and Note 16 (“Commitments and Contingencies”) to our Financial Statements included in this Annual Report on Form 10-K for additional information regarding legal proceedings to which we are a party, including ongoing litigation regarding our qualification as a heavy equipment dealer, the qualification of our natural gas compressors as heavy equipment and the resulting appraisal of our natural gas compressors for ad valorem tax purposes, as well as the location for taxation of our natural gas compressors, under revised Texas statutes.

As a result of the new methodology, our ad valorem tax expense (which is reflected in our consolidated statements of operations as a component of cost of sales (excluding depreciation and amortization expense)) includes a benefit of $14.9 million, $14.6 million, and $10.2 million during the years ended December 31, 2016, 2015, and 2014, respectively. If we are unsuccessful in our litigation with the appraisal districts, or if legislation is enacted in Texas that repeals or alters the Heavy Equipment Statutes such that in the future we do not qualify as a Heavy Equipment Dealer or our compressors do not qualify as Heavy Equipment, then we would likely be required to pay these ad valorem taxes under the old methodology going forward, which would increase our quarterly cost of sales expense up to approximately the amount of our then most recent quarterly benefit recorded, and as a result impact our future results of operations and cash flows, including our cash available for distribution and accordingly, could impair our ability to maintain our distributions. If we had not received the $14.9 million, $14.6 million, and $10.2 million of benefit from the new methodology during the years ended December 31, 2016, 2015, and 2014, respectively, our distributable cash flow coverage would have been 2.24x, 1.14x, and 1.12x rather than the actual distributable cash flow coverage of 2.45x, 1.24x and 1.30 during the year ended December 31, 2016, 2015 and 2014, respectively.

Contractual Obligations. The following table summarizes our cash contractual obligations as of December 31, 2016 (in thousands):



	Payments Due by Period
	Total		2017		2018-2019		2020-2021		Thereafter
Long-term debt⁽¹⁾
Revolving credit facility due May 2018	$	509,500	$	—	$	509,500	$	—	$	—
Term loan facility due May 2018⁽²⁾	150,000		—		150,000		—		—
6% senior notes due April 2021⁽³⁾	350,000		—		—		350,000		—
6% senior notes due October 2022⁽⁴⁾	350,000		—		—		—		350,000
Total long-term debt	1,359,500		—		659,500		350,000		350,000
Estimated interest payments⁽⁵⁾	252,420		72,967		95,453		68,250		15,750
Total contractual obligations	$	1,611,920	$	72,967	$	754,953	$	418,250	$	365,750


⁽¹⁾	Amounts represent the expected cash payments for principal on our debt and do not include any deferred issuance costs or fair market valuations of our debt. For more information on our long-term debt, see Note 8 (“Long-Term Debt”) to our Financial Statements.


⁽²⁾	Amounts represent the full face value of the term loan and are not reduced by the unamortized deferred financing costs of $0.4 million as of December 31, 2016.

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⁽³⁾	Amounts represent the full face value of the 2013 Notes and are not reduced by the unamortized discount of $3.2 million and unamortized deferred financing costs of $4.4 million as of December 31, 2016.


⁽⁴⁾	Amounts represent the full face value of the 2014 Notes and are not reduced by the unamortized discount of $4.1 million and unamortized deferred financing costs of $4.8 million as of December 31, 2016.


⁽⁵⁾	Interest amounts calculated using interest rates in effect as of December 31, 2016, including the effect of our interest rate swaps.

At December 31, 2016, $1.9 million of unrecognized tax benefits have been recorded as liabilities in accordance with the accounting standard for income taxes related to uncertain tax positions, and we are uncertain as to if or when such amounts may be settled. Related to these unrecognized tax benefits, we have also recorded a liability for potential penalties and interest of $0.1 million.

Off-Balance Sheet Arrangements

We have no material off-balance sheet arrangements.

Effects of Inflation

Our revenue and results of operations have not been materially impacted by inflation in the past three fiscal years.

Critical Accounting Estimates

This discussion and analysis of our financial condition and results of operations is based upon our Financial Statements, which have been prepared in accordance with GAAP. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates and accounting policies, including those related to bad debt, fixed assets, intangible assets, income taxes and contingencies. We base our estimates on historical experience and on other assumptions that we believe are reasonable under the circumstances. The results of this process form the basis of our judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions, and these differences can be material to our financial condition, results of operations and liquidity. We describe our significant accounting policies more fully in Note 1 (“Organization and Summary of Significant Accounting Policies”) to our Financial Statements.

Allowances and Reserves

We maintain allowances for doubtful accounts for estimated losses resulting from the inability of our customers to make required payments. The determination of the collectability of amounts due from our customers requires us to use estimates and make judgments regarding future events and trends, including monitoring our customers’ payment history and current creditworthiness to determine that collectability is reasonably assured, as well as consideration of the overall business climate in which our customers operate.

Inherently, these uncertainties require us to make judgments and estimates regarding our customers’ ability to pay amounts due to us in order to determine the appropriate amount of valuation allowances required for doubtful accounts. We review the adequacy of our allowance for doubtful accounts quarterly. We determine the allowance needed based on historical write-off experience and by evaluating significant balances aged greater than 90 days individually for collectibility. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. During the years ended December 31, 2016, 2015, and 2014, we recorded bad debt expense of $2.7 million, $2.3 million, and $1.1 million, respectively.

Depreciation

Property, plant and equipment are carried at cost. Depreciation for financial reporting purposes is computed on the straight-line basis using estimated useful lives and salvage values. The assumptions and judgments we use in determining the estimated useful lives and salvage values of our property, plant and equipment reflect both historical experience and expectations regarding future use of our assets. The use of different estimates, assumptions and judgments in the establishment of property, plant and equipment accounting policies, especially those involving their useful lives, would likely result in significantly different net book values of our assets and results of operations.

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Business Combinations and Goodwill

Goodwill and intangible assets acquired in connection with business combinations represent the excess of consideration over the fair value of tangible net assets acquired. Certain assumptions and estimates are employed in determining the fair value of assets acquired and liabilities assumed.

We review the carrying value of our goodwill for potential impairment in the fourth quarter of every year, or whenever events or other circumstances indicate that we may not be able to recover the carrying amount. We first assess qualitative factors to evaluate whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as the basis for determining whether it is necessary to perform the two-step goodwill impairment test. We may elect to perform the two-step goodwill impairment test without completing a qualitative assessment.

If a two-step process goodwill impairment test is elected or required, the first step is to compare the implied fair value of our reporting unit with its carrying value (including the goodwill). If the implied fair value of the reporting unit is higher than the carrying value, no impairment was deemed to exist and no further testing is required. If, however, the implied fair value of the reporting unit is below the recorded carrying value, then a second step must be performed to determine the goodwill impairment required, if any. We calculate the implied fair value of the reporting unit goodwill by allocating the estimated fair value of the reporting unit to all of the assets and liabilities of the reporting unit as if the reporting unit had been acquired in a business combination. If the carrying value of the reporting unit’s goodwill exceeds the implied fair value of the goodwill, we recognize an impairment loss for that excess amount.

Determining the fair value of a reporting unit under the first step of the goodwill impairment test is judgmental in nature and involves the use of significant estimates and assumptions, which have a significant impact on the fair value determined. We determine the fair value of our reporting unit using both the expected present value of future cash flows and a market approach. Each approach is weighted 50% in determining our calculated fair value. The present value of future cash flows is estimated using our most recent forecast and the weighted average cost of capital. The market approach uses a market multiple on the earnings before interest expense, provision for income taxes and depreciation and amortization expense of comparable peer companies. Significant estimates for our reporting unit included in our impairment analysis are our cash flow forecasts, our estimate of the market’s weighted average cost of capital and market multiples.

Long-Lived Assets

We review long-lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable. The determination that the carrying amount of an asset may not be recoverable requires us to make judgments regarding long-term forecasts of future revenue and costs related to the assets subject to review. These forecasts are uncertain as they require significant assumptions about future market conditions. Significant and unanticipated changes to these assumptions could require a provision for impairment in a future period. Given the nature of these evaluations and their application to specific assets and specific times, it is not possible to reasonably quantify the impact of changes in these assumptions. An impairment loss exists when estimated undiscounted cash flows expected to result from the use of the asset and its eventual disposition are less than its carrying amount. When necessary, an impairment loss is recognized and represents the excess of the asset’s carrying value as compared to its estimated fair value and is charged to the period in which the impairment occurred.

Income Taxes

As a partnership, all income, gains, losses, expenses, deductions and tax credits we generate generally flow through to our unitholders. However, some states impose an entity-level income tax on partnerships, including us. Our provision for income taxes, deferred tax liabilities and reserves for unrecognized tax benefits reflect management’s best assessment of estimated current and future taxes to be paid. Significant judgments and estimates are required in determining our provision for income taxes.

Deferred income taxes arise from temporary differences between the financial statements and tax basis of assets and liabilities. Changes in tax laws and rates could affect recorded deferred tax liabilities in the future. Management is not aware of any such changes that would have a material effect on our financial position, results of operations or ability to make cash distributions to our unitholders. The calculation of our tax liabilities involves dealing with uncertainties in the application of complex tax laws and regulations in various states.

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The accounting standard for income taxes provides that a tax benefit from an uncertain tax position may be recognized when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, on the basis of the technical merits. In addition, guidance is provided on measurement, derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. We adjust these liabilities when our judgment changes as a result of the evaluation of new information not previously available. Because of the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from our current estimate of the tax liabilities. These differences will be reflected as increases or decreases to income tax expense in the period in which new information is available.

Contingencies and Litigation

In the ordinary course of business, we are involved in various pending or threatened legal actions. While we are unable to predict the ultimate outcome of these actions, the accounting standard for contingencies requires management to make judgments about future events that are inherently uncertain. We are required to record (and have recorded) a loss during any period in which we believe a contingency is probable and can be reasonably estimated. In making determinations of likely outcomes of pending or threatened legal matters, we consider the evaluation of counsel knowledgeable about each matter.

The impact of an uncertain tax position taken or expected to be taken on an income tax return must be recognized in the financial statements at the largest amount that is more likely than not to be sustained upon examination by the relevant taxing authority. We regularly assess and, if required, establish accruals for income tax and non-income based tax contingencies pursuant to the applicable accounting standards that could result from assessments of additional tax by taxing jurisdictions where we operate. Tax contingencies are subject to a significant amount of judgment and are reviewed and adjusted on a quarterly basis in light of changing facts and circumstances considering the outcome expected by management. As of December 31, 2016 and 2015, we had recorded approximately $3.5 million and $3.1 million (including penalties and interest), respectively, of accruals for tax contingencies. Of these amounts, $2.0 million and $2.0 million, respectively, are accrued for income taxes and $1.5 million and $1.1 million, respectively, are accrued for non-income based taxes. If our actual experience differs from the assumptions and estimates used for recording the liabilities, adjustments may be required and would be recorded in the period in which the difference becomes known.

Self-Insurance

Archrock insures our property and operations and allocates certain insurance costs to us. Archrock is self-insured up to certain levels for general liability, vehicle liability, group medical and workers’ compensation claims. Archrock regularly reviews estimates of reported and unreported claims and provides for losses based on claims filed and an estimate for significant claims incurred but not reported. Although we believe the insurance costs allocated to us are adequate, it is reasonably possible Archrock’s estimates of these liabilities will change over the near term as circumstances develop.

Recent Accounting Pronouncements

See Note 2 (“Recent Accounting Pronouncements”) to our Financial Statements.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to market risk primarily associated with changes in interest rates under our financing arrangements. We use derivative financial instruments to minimize the risks and/or costs associated with financial activities by managing our exposure to interest rate fluctuations on a portion of our debt obligations. We do not use derivative financial instruments for trading or other speculative purposes.

As of December 31, 2016, after taking into consideration interest rate swaps, we had $159.5 million of outstanding indebtedness that was effectively subject to floating interest rates. A 1% increase in the effective interest rate on our outstanding debt subject to floating interest rates at December 31, 2016 would result in an annual increase in our interest expense of approximately $1.6 million.

For further information regarding our use of interest rate swap agreements to manage our exposure to interest rate fluctuations on a portion of our debt obligations, see Note 11 (“Accounting for Derivatives”) to our Financial Statements.

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Item 8. Financial Statements and Supplementary Data

The financial statements and supplementary information specified by this Item are presented in Part IV, Item 15 of this Annual Report on Form 10-K.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Management’s Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Annual Report on Form 10-K, our principal executive officer and principal financial officer evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), which are designed to provide reasonable assurance that we are able to record, process, summarize and report the information required to be disclosed in our reports under the Exchange Act within the time periods specified in the rules and forms of the Securities and Exchange Commission. Based on the evaluation, as of December 31, 2016, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective to provide reasonable assurance that the information required to be disclosed in reports that we file or submit under the Exchange Act is accumulated and communicated to management, and made known to our principal executive officer and principal financial officer, on a timely basis to ensure that it is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

Management’s Annual Report on Internal Control Over Financial Reporting

As required by Exchange Act Rules 13a-15(c) and 15d-15(c), our management, including the Chief Executive Officer and Chief Financial Officer, is responsible for establishing and maintaining adequate internal control over financial reporting. Management conducted an evaluation of the effectiveness of internal control over financial reporting based on the Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness as to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Based on the results of management’s evaluation described above, management concluded that our internal control over financial reporting was effective as of December 31, 2016.

The effectiveness of internal control over financial reporting as of December 31, 2016 was audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in its report found within this Annual Report on Form 10-K.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) during the last fiscal quarter that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Partners of

Archrock Partners, L.P.

Houston, Texas

We have audited the internal control over financial reporting of Archrock Partners, L.P. and subsidiaries (the “Partnership”) as of December 31, 2016, based on the criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Partnership’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Partnership’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Partnership maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on the criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements and financial statement schedule as of and for the year ended December 31, 2016 of the Partnership and our report dated February 23, 2017 expressed an unqualified opinion on those financial statements and financial statement schedule.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 23, 2017

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Item 9B. Other Information

None.

PART III

ITEM 10. Directors, Executive Officers and Corporate Governance

Board of Directors

Because our general partner is a limited partnership, its general partner, Archrock GP LLC, conducts our business and operations. Archrock GP LLC’s board of directors and officers, which we refer to as our board of directors and our officers, make decisions on our behalf. Our general partner is not elected by our unitholders and is not subject to re-election on a regular basis in the future. Unitholders are not entitled to elect the directors of Archrock GP LLC or directly or indirectly participate in our management or operation. As a result, we do not hold annual unitholder meetings. Our general partner owes a fiduciary duty to our unitholders. Our general partner is liable, as our sole general partner, for all of our debts (to the extent not paid from our assets), except for indebtedness or other obligations that are made expressly non-recourse to it. Our general partner therefore may cause us to incur indebtedness or other obligations that are non-recourse to it.

NASDAQ does not require a listed limited partnership like us to have a majority of independent directors on our board of directors or to establish a compensation committee or a nominating committee. We have seven directors, three of whom — James G. Crump, G. Stephen Finley and Edmund P. Segner, III — have been determined by the board to be “independent directors” within the meaning of applicable NASDAQ rules and Rule 10A-3 of the Exchange Act. In determining the independence of each director, we have adopted standards that incorporate the NASDAQ and Exchange Act standards.

Our board of directors has standing audit, compensation and conflicts committees. Each committee’s written charter is available on our website at www.archrock.com and without charge to any unitholder upon written request to Investor Relations, 16666 Northchase Drive, Houston, Texas 77060.

Our board of directors met nine times during 2016 and took action by unanimous written consent on one occasion. During 2016, each director attended at least 75% of the aggregate number of meetings of the board of directors and any committee of the board of directors on which such director served.

Our directors hold office until the earlier of their death, resignation, removal or disqualification or until their successors have been elected and qualified. Officers serve at the discretion of the board of directors. There are no family relationships among any of our directors or executive officers, and there are no arrangements or understandings between any of the directors or executive officers and any other persons pursuant to which a director or officer was selected as such.

Audit Committee. The audit committee, which met four times during 2016, consists of Messrs. Crump (chair), Finley and Segner. The board of directors has determined that each of Messrs. Crump, Finley and Segner is an “audit committee financial expert” as defined in Item 407(d)(5)(ii) of SEC Regulation S-K, and that each is “independent” within the meaning of the applicable NASDAQ and Exchange Act rules regulating audit committee independence. The audit committee assists our board of directors in its oversight of the integrity of our financial statements and our compliance with legal and regulatory requirements and corporate policies and controls. The audit committee has the sole authority to retain and terminate our independent registered public accounting firm, approve all auditing services and related fees and terms and pre-approve any non-audit services to be performed by our independent registered public accounting firm. The audit committee is also responsible for confirming the independence and objectivity of our independent registered public accounting firm. Our independent registered public accounting firm has unrestricted access to the audit committee.

Compensation Committee. The compensation committee, which met seven times during 2016 and took action by unanimous written consent on one occasion, consists of Messrs. Crump, Finley (chair) and Segner. The compensation committee discharges the board of directors’ responsibilities relating to compensation of our executives and independent directors, reviews and approves the manner in which Archrock allocates to us its compensation expense applicable to our executives and oversees the development and implementation of our compensation programs. The compensation committee also, in accordance with the SEC’s rules and regulations, produces the compensation discussion and analysis included in Item 11 (“Executive Compensation”) of this Annual Report on Form 10-K.

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Conflicts Committee. The conflicts committee, which met five times during 2016, consists of Messrs. Crump (chair), Finley and Segner. The purpose of the conflicts committee is to carry out the duties of the committee as set forth in our Partnership Agreement and the Omnibus Agreement, and any other duties delegated by our board of directors that may involve a conflict of interest. Any matters approved by the conflicts committee will be conclusively deemed to be fair and reasonable to us, approved by all of our partners and not a breach by our general partner of any duties it may owe us or our unitholders.

Section 16(a) Beneficial Ownership Reporting Compliance

Under Section 16(a) of the Exchange Act, directors, officers and beneficial owners of 10 percent or more of our common units (“Reporting Persons”) are required to report to the SEC on a timely basis the initiation of their status as a Reporting Person and any changes with respect to their beneficial ownership of our common units. Based solely on a review of Forms 3, 4 and 5 (and any amendments thereto) furnished to us and the representations made to us, we have concluded that no Reporting Persons were delinquent with respect to their reporting obligations, as set forth in Section 16(a) of the Exchange Act, except that a Form 3 reporting the beneficial ownership of common units held by Jason G. Ingersoll, in connection with his election as an executive officer, was filed late due to an administrative error.

Code of Ethics

Archrock GP LLC has adopted a Code of Business Conduct and Ethics that applies to it and its subsidiaries and affiliates, including us, and to all of its and their respective employees, directors and officers, including its principal executive officer, principal financial officer and principal accounting officer. A copy of this code is available on our website at www.archrock.com or without charge upon written request to Investor Relations, 16666 Northchase Drive, Houston, Texas 77060.

Directors and Executive Officers

All of our executive officers allocate their time between managing our business and affairs and Archrock’s business and affairs. Archrock causes the executive officers to devote as much time to the management of our business and affairs as is necessary. A significant number of other employees of Archrock and its affiliates operate our business and provide us with general and administrative services.

Our current directors and executive officers are:



Name	Age	Title
D. Bradley Childers	52	President, Chief Executive Officer and Chairman of the Board
David S. Miller	53	Senior Vice President, Chief Financial Officer and Director
Robert E. Rice	51	Senior Vice President, Chief Operating Officer and Director
Donald C. Wayne	50	Senior Vice President, General Counsel and Director
Jason G. Ingersoll	46	Vice President, Sales and Marketing
Donna A. Henderson	49	Vice President and Chief Accounting Officer
James G. Crump	76	Director
G. Stephen Finley	66	Director
Edmund P. Segner, III	63	Director

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D. Bradley Childers. Mr. Childers was elected President, Chief Executive Officer and Chairman of the Board of Archrock GP LLC in December 2011, having served as interim Chief Executive Officer and interim Chairman of the Board since November 2011. Prior to that, Mr. Childers served as Senior Vice President and director of Archrock GP LLC since June 2006 and May 2008, respectively. In December 2011, Mr. Childers also assumed the roles of President and Chief Executive Officer of Archrock, after serving in those roles on an interim basis since November 2011, and was elected a director of Archrock in April 2013. He was Senior Vice President of Archrock from August 2007 through November 2011. Prior to the Spin-off, he was also an officer of certain Exterran subsidiaries, including President, North America of Exterran Energy Solutions, LP. from March 2008 through November 2011. Prior to the merger of Hanover Compressor Company and Universal Compression Holdings, Inc. in August 2007, Mr. Childers joined Universal in 2002 and served in a number of management positions, including as Senior Vice President of Universal and President of the International Division of Universal Compression, Inc., Universal’s wholly-owned subsidiary. He held various positions with Occidental Petroleum Corporation (an international oil and gas exploration and production company) and its subsidiaries from 1994 to 2002, including as Vice President, Business Development at Occidental Oil and Gas Corporation. Mr. Childers is a member of the board of directors of Yellowstone Academy (a non-profit organization). Mr. Childers also serves as an officer of certain other Archrock subsidiaries. Mr. Childers holds a B.A. from Claremont McKenna College and a J.D. from the University of Southern California.

Mr. Childers’ day to day leadership as our Chief Executive Officer and his role in forming the Partnership provide him with an intimate knowledge of our Partnership, including its strategies, operations and markets. His previous experience as President, North America of Exterran Energy Solutions, L.P. has provided him with intimate knowledge of our contract compression operations, as well as a unique understanding of market factors and operational challenges and opportunities. Mr. Childers’ business judgment, management experience and leadership skills are highly valuable in assessing our business strategies and accompanying risks. We believe this knowledge and experience make Mr. Childers well qualified to serve as a director of Archrock GP LLC.

David S. Miller. Mr. Miller was elected Senior Vice President and Chief Financial Officer of Archrock GP LLC in April 2012 and as a director of Archrock GP LLC in March 2009. He was also elected Senior Vice President and Chief Financial Officer of Archrock in November 2015. Prior to the Spin-off, he was an officer of certain Exterran subsidiaries, including Vice President and Chief Financial Officer, Eastern Hemisphere of Exterran Energy Solutions, L.P. from August 2010 through April 2012. He also previously served as Vice President and Chief Financial Officer of Archrock GP LLC from March 2009 through August 2010. Prior to that, Mr. Miller served as Chief Operating Officer of JMI Realty (a private real estate investment and development company) from October 2005 through January 2009. From April 2002 through September 2005, Mr. Miller was a partner with SP Securities LLC (a private investment banking firm). Prior to joining SP Securities LLC, Mr. Miller served in positions of increasing responsibility with the Energy Investment Banking department of Merrill Lynch & Co, Inc. from May 1993 through March 2002. He serves as an officer of certain other Archrock subsidiaries. Mr. Miller holds a B.S. in finance from Southern Methodist University and an MBA from Northwestern University J.L. Kellogg Graduate School of Management.

Through his role as our Senior Vice President and Chief Financial Officer, Mr. Miller brings extensive knowledge of our Partnership, including its capital structure and financing requirements. Mr. Miller also brings valuable financial expertise, including extensive experience with capital markets transactions, knowledge of the energy industry and familiarity with the natural gas compression industry from his prior role as an investment banker. We believe this knowledge and experience make Mr. Miller well qualified to serve as a director of Archrock GP LLC.

Robert E. Rice. Mr. Rice was elected Senior Vice President and Director of Archrock GP LLC in December 2011 and November 2015, respectively, and Chief Operating Officer in April 2016. He was also appointed Senior Vice President of Archrock in December 2011 and was appointed to the additional role of Chief Operating Officer in November 2015. Prior to the Spin-off, he was an officer of certain Exterran subsidiaries, including President, North America of Exterran Energy Solutions, L.P. from December 2011 through November 2015 and Regional Vice President for the U.S. Gulf Coast Region from August 2007 through December 2011. Prior to the merger of Hanover and Universal, Mr. Rice held the following positions at Hanover: Vice President, Gulf Coast Business Unit, from September 2003 to August 2007; Vice President, Health, Safety & Environmental, from October 2002 to September 2003; and Director, Corporate Development, January 2002 to October 2002. During his career, Mr. Rice has been based in Argentina and Australia and has developed detailed experience in analyzing, structuring and growing businesses in domestic and international energy markets. Mr. Rice served as a Flight Test Engineer with the United States Air Force. Mr. Rice also serves as an officer of certain other Archrock subsidiaries. Mr. Rice earned a B.S. in electrical engineering from Louisiana Tech University.

Mr. Rice’s direct responsibility for our operations in his role as our Chief Operating Officer of Archrock and his previous role as President, North America of Exterran Energy Solutions, LP. has provided him with a first-hand working knowledge of our contract compression operations. Mr. Rice also possesses a thorough understanding of market factors and operational challenges and opportunities. He plays an integral role in assessing our business strategies and accompanying risks. We believe this knowledge and experience make Mr. Rice well qualified to serve as a director of Archrock GP LLC.

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Donald C. Wayne. Mr. Wayne was elected Senior Vice President and General Counsel of Archrock GP LLC in May 2008, having served as Vice President, General Counsel and Secretary since August 2006. He also serves as Senior Vice President, General Counsel and Secretary of Archrock. Prior to the Spin-off, he was an officer of certain Exterran subsidiaries, including Senior Vice President, General Counsel and Secretary of Exterran Energy Solutions, L.P. since August 2007. Prior to the merger of Hanover and Universal, Mr. Wayne served as Vice President, General Counsel and Secretary of Universal, a position he assumed upon joining Universal in August 2006. Prior to joining Universal, he served as Vice President, General Counsel and Corporate Secretary of U.S. Concrete, Inc. (a producer of ready-mixed concrete and concrete-related products) from 1999 to August 2006. Prior to joining U.S. Concrete in 1999, Mr. Wayne served as an attorney with the law firm of Akin, Gump, Strauss, Hauer & Feld, L.L.P. Mr. Wayne also serves as an officer and director of certain other Archrock subsidiaries. Mr. Wayne holds a B.A. from Tufts University and a J.D. and an MBA from Washington University (St. Louis).

As an officer of Archrock GP LLC for approximately ten years, Mr. Wayne has an extensive knowledge of the Partnership, including its strategies, operations, challenges and opportunities. In addition, Mr. Wayne brings an understanding of legal and regulatory matters. We believe this knowledge and experience make Mr. Wayne well qualified to serve as a director of Archrock GP LLC.

Jason G. Ingersoll. Mr. Ingersoll is Vice President, Sales and Marketing, of Archrock GP LLC, a position he has held since April 2016. He has also served in this capacity for Archrock since November 2015. Prior to the Spin-off, he held positions of increasing responsibility with Exterran Energy Solutions, L.P., including Vice President, Sales from October 2013 to November 2015, Regional Vice President from January 2012 to October 2013, Business Unit Director from March 2009 to January 2012 and Sales Manager, Southern Rockies from July 2008 to March 2009. Prior to the merger of Hanover and Universal in 2007, he served Universal as Manager, Global Accounts from August 2006 to July 2008 and as Country Manager, China from July 2003 to August 2006. He serves as an officer of certain Archrock subsidiaries. Mr. Ingersoll earned a B.S. in mechanical engineering from Texas A&M University.

Donna A. Henderson. Ms. Henderson is Vice President and Chief Accounting Officer of Archrock GP LLC, positions she assumed in January 2016. Ms. Henderson has served as the Vice President, Accounting of the Company’s primary operating subsidiary since August 2015. Prior to joining Archrock, from April 2013 until June 2015, Ms. Henderson served as Vice President and Chief Accounting Officer of Southcross Energy Partners GP, LLC (a provider of natural gas gathering, processing, treating, compression and transportation services). From September 2011 to December 2012, Ms. Henderson was the Vice President and Chief Audit Executive of GenOn Energy, Inc. (a wholesale electric generator which merged into NRG Energy). Prior to that position, Ms. Henderson served as Assistant Controller of GenOn Energy, Inc. and its predecessor companies, RRI Energy, Inc. and Reliant Energy Inc., from July 2005 to September 2011, and held various other leadership roles within the accounting department of that organization since September 2000. From 1996 to 2000, Ms. Henderson held various accounting positions with Lyondell Chemical (a manufacturer of chemicals and polymers). Ms. Henderson began her career in Houston, Texas in 1989 with Deloitte & Touche LLP, where she worked until November 1993 when she joined KPMG LLP in Albuquerque, New Mexico, where she worked until 1995. Ms. Henderson holds a BBA in accounting from Eastern New Mexico University and is a member of the American Institute of Certified Public Accountants.

James G. Crump. Mr. Crump was elected as a director of Archrock GP LLC in October 2006. Mr. Crump began his career at Price Waterhouse in 1962 and became a partner in 1974. From 1977 until the merger of Price Waterhouse and Coopers Lybrand in 1998, Mr. Crump held numerous management and leadership roles. From 1998 until his retirement in 2001, Mr. Crump served as Global Energy and Mining Cluster Leader, as a member of the U.S. Management Committee and the Global Management Committee and as Houston Office Managing Partner. Mr. Crump served as chairman of the audit committee and a member of the conflicts committee of the board of directors of Copano Energy, L.L.C. (a natural gas gathering and processing company) from November 2004 until Copano was acquired by Kinder Morgan Energy Partners in May 2013. He is a director of the Lamar University Foundation and the Culinary Endowment and Scholarship, Inc. (both non-profit organizations). Mr. Crump holds a B.B.A. in accounting from Lamar University.

With a nearly 40-year career focused on providing independent public accounting services to the energy industry, Mr. Crump contributes a broad-based understanding of the oil and gas industry and of complex accounting and financial matters. We believe this knowledge and experience make Mr. Crump well qualified to serve as a director of Archrock GP LLC.

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G. Stephen Finley. Mr. Finley was elected as a director of Archrock GP LLC in November 2006. Mr. Finley served in various positions of increasing responsibility at Baker Hughes Incorporated (a provider of drilling, formation evaluation, completion and production products and services to the worldwide oil and gas industry) from 1982 until his retirement in 2006, including as Senior Vice President - Finance and Administration and Chief Financial Officer from April 1999 through April 2006. Mr. Finley currently serves as chairman of the audit committee and as a member of the compensation committee and the nominating and corporate governance committee of the board of directors of Newpark Resources, Inc. (a provider of integrated site, environmental and drilling fluid services to the oil and gas exploration and production industry). From March 2015 to February 2017, Mr. Finley served on the board of CPG GP LLC, the general partner of Columbia Pipeline Partners LP (an owner of natural gas pipelines, storage and related midstream assets); from April 2012 to December 2014, he served on the board of Microseismic, Inc. (a private oilfield services company providing real-time monitoring and mapping of hydraulic fracture operations in unconventional oil and gas plays); and from December 2006 to November 2011, he served on the board of Total Safety U.S., Inc. (a privately held company and global provider of integrated safety strategies and solutions for hazardous environments). Mr. Finley holds a B.S. from Indiana State University.

Mr. Finley contributes extensive financial acumen and an understanding of the oil and gas services industry, including oilfield services companies, through his 24 years of service with Baker Hughes, including seven years as Chief Financial Officer, and also serves on the audit and compensation committees of the board of directors of another energy services company. We believe this knowledge and experience make Mr. Finley well qualified to serve as a director of Archrock GP LLC.

Edmund P. Segner, III. Mr. Segner was elected as a director of Archrock GP LLC in May 2009. Mr. Segner is a Professor in the Practice of Engineering Management in the Department of Civil and Environmental Engineering at Rice University (Houston). In November 2008, Mr. Segner retired from EOG Resources, Inc. (EOG) (a publicly traded independent oil and gas exploration and production company). Among the positions he held at EOG was President and Chief of Staff and Director from 1999 to 2007. From March 2003 through June 2007, he also served as EOG’s principal financial officer. He served as chairman of the audit committee and as a member of the finance committee of the board of Seahawk Drilling, Inc. (an owner and operator of offshore oil and gas platforms and a provider of shallow water contract drilling services to the oil and natural gas exploration industry) from August 2009 to October 2011. Mr. Segner currently serves as chairman of the reserves and environment, health and safety committee and is a member of the audit and compensation committees of Bill Barrett Corporation (a company engaged in exploration and development of natural gas and oil reserves in the Rocky Mountain region of the U.S.). Mr. Segner also serves as lead director, audit committee chair and member of the nominating and governance committee of Laredo Petroleum, Inc. (a company focused on the exploration, development and acquisition of oil and natural gas properties in the Permian region of the U.S.) and as a director and a member of the conflicts committee of Midcoast Holdings, LLC (a natural gas and natural gas liquids midstream company with operations primarily in Texas and Oklahoma). Mr. Segner is a member of the Society of Petroleum Engineers and currently serves on the board of trustees of the Nature Conservancy of Texas (a non-profit organization). Mr. Segner is a Certified Public Accountant and holds a B.S. in civil engineering from Rice University and an M.A. in economics from the University of Houston.

Mr. Segner brings technical experience and financial acumen to the board of directors. Having served in a senior management position for an oil and gas company, Mr. Segner also possesses a thorough understanding of the energy industry and operational challenges unique to this industry. In addition, as a former president of a public company and as a director of other public companies, Mr. Segner has valuable experience with other functions pertinent to our board, including compensation, financing matters and the evaluation of acquisition opportunities. We believe this knowledge and experience make Mr. Segner well qualified to serve as a director of Archrock GP LLC.

Director Compensation

Retainers and Fees

Only the independent members of our board of directors receive compensation for their service as directors. Messrs. Childers, Miller, Rice and Wayne, who also are our executive officers, served on the board of directors during 2016 but received no compensation for such service. As reflected in the table below, during 2016, each non-employee director received an annual cash retainer, as well as a payment for each meeting attended. The chairs of the audit committee, compensation committee and conflicts committee each received an additional retainer for their services. All retainers are paid in arrears in equal quarterly installments.

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		Applicability
Description of Remuneration	Annual Amount (except with respect to meeting fees ($))	Mr. Crump	Mr. Finley	Mr. Segner
Base Retainer	45,000	ü	ü	ü
Other Retainers:
Audit Committee Chairman	10,000	ü
Conflicts Committee Chairman	5,000	ü
Compensation Committee Chairman	5,000		ü
Attendance Fee (per in-person meeting attended and per telephonic meeting attended)	1,500	ü	ü	ü

In addition, each director is reimbursed for his reasonable out-of-pocket expenses in connection with attending meetings of the board of directors or committees. Each director will be fully indemnified by us for actions associated with serving as a director to the fullest extent permitted under Delaware law.

Equity-Based Compensation

As part of their annual compensation, non-employee directors are granted equity awards under the Partnership Plan. Our compensation committee’s general practice is to grant annual equity awards to our directors in the first quarter of each year, consistent with the timing of our grants to the Named Executive Officers. Accordingly, on March 4, 2016, the Compensation Committee approved an annual grant of 9,567 shares of fully-vested common units to each non-employee director valued at approximately $75,000 (based on the market closing price of our common units on March 4, 2016).

Total Compensation

The following table shows the total compensation paid to each non-employee director for service during 2016.



Name	Fees Earned in Cash ($)	Common Unit Awards ($)	Total ($)
James G. Crump	103,500	75,005	178,505
G. Stephen Finley	93,500	75,005	168,505
Edmund P. Segner, III	88,500	75,005	163,505

Item 11. Executive Compensation

COMPENSATION DISCUSSION AND ANALYSIS

Overview

As is commonly the case for many publicly traded limited partnerships, we have no employees. Under the terms of our partnership agreement, we are ultimately managed by Archrock GP LLC, the general partner of Archrock General Partner, L.P., our general partner (which we may refer to as our general partner or Archrock GP LLC). We refer to Archrock GP LLC’s management and executive officers as “our management” and “our executive officers” and Archrock GP LLC’s board of directors and compensation committee as “our board of directors” and “our compensation committee.”

Our named executive officers (collectively, the “Named Executive Officers”) for 2016 were:


•	D. Bradley Childers, President and Chief Executive Officer of Archrock GP LLC and Archrock;


•	David S. Miller, Senior Vice President and Chief Financial Officer of Archrock GP LLC and Archrock;


•	Jason G. Ingersoll, Vice President, Sales and Marketing of Archrock GP LLC and Archrock;

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•	Robert E. Rice, Senior Vice President and Chief Operating Officer of Archrock GP LLC and Archrock; and


•	Donald C. Wayne, Senior Vice President and General Counsel of Archrock GP LLC and Archrock and Secretary of Archrock.

This Compensation Discussion and Analysis will discuss in greater detail the compensation of our Named Executive Officers during 2016.

Compensation Expense Allocations

Under the Omnibus Agreement, most costs associated with Archrock’s provision of services to us, including compensation of our Named Executive Officers, are allocated to us on a monthly basis in the manner that our general partner deems reasonable. During 2016, those allocations were generally made using a two-step process:


•	First, Archrock allocated an appropriate portion of its total SG&A expenses among its business segments, including to its contract operations segment, based on headcount and estimated time spent in support of contract operations.


•	Second, Archrock allocated to us a prorated portion of the SG&A expenses initially allocated to Archrock’s contract operations segment based upon the ratio of our total compression equipment horsepower to the sum of Archrock’s total compression equipment horsepower and our total compression equipment horsepower.

For 2016, there were no caps on the amount we were obligated to reimburse Archrock for SG&A expenses allocated to us, including compensation costs. See Part III, Item 13 (“Certain Relationships and Related Transactions, and Director Independence”) of this report for additional discussion of relationships and transactions we have with Archrock and the terms of the Omnibus Agreement.

During the year ended December 31, 2016, Archrock allocated to us the following percentages of Archrock compensation expenses incurred to provide the Named Executive Officers’ total compensation, including base salary, annual performance-based incentive compensation, Archrock stock awards, our phantom unit awards and other benefits:



Executive Officer	Percent of Named Executive Officer’s 2016 Total Compensation Allocated to the Partnership (%)
D. Bradley Childers	52.6
David S. Miller	52.6
Jason G. Ingersoll	57.8
Robert E. Rice	57.8
Donald C. Wayne	52.6

Our Compensation Committee’s Structure and Responsibilities

Because our Named Executive Officers are also officers of Archrock, their compensation structure is established by the compensation committee of the board of directors of Archrock (the “Archrock Compensation Committee”). Our compensation committee’s primary responsibilities are to:


•	Discharge the board of directors’ responsibilities relating to our executives’ compensation;


•	Review and approve the manner in which Archrock allocates to us the compensation expense applicable to our Named Executive Officers;


•	Oversee the Archrock Partners, L.P. Long-Term Incentive Plan (the “Partnership Plan”) and make awards thereunder;


•	Review and approve compensation programs for our independent directors; and

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•	Produce an annual report relating to this compensation discussion and analysis for inclusion in our Annual Report on Form 10-K in accordance with the rules and regulations of the SEC.

Our compensation committee is comprised entirely of independent directors within the meaning of applicable NASDAQ rules. The current members of our compensation committee are G. Stephen Finley, James G. Crump and Edmund P. Segner, III.

Compensation Philosophy and Objectives

The primary objectives of Archrock’s executive compensation program are to:

•

Pay competitively - The Archrock Compensation Committee believes that, to attract, retain and motivate an effective management team with the level of expertise and experience needed to achieve consistent growth, profitability and return for Archrock’s stockholders, total compensation should be competitive with that of comparably-sized companies within the oilfield services sector and, where applicable, across a variety of industries, as further described below in “How the Archrock Compensation Committee Determines Executive Compensation.”

•

Pay for performance - Archrock’s and our emphasis on performance-based, variable compensation is an important component of Archrock’s overall compensation philosophy. Cash bonuses and equity-based incentive awards based on Archrock’s annual performance combined with Archrock’s and our time-based equity awards that vest over several years balance short-term and long-term business objectives. Approximately 82% of our Chief Executive Officer’s 2016 total direct compensation (base salary plus annual cash incentive and long-term incentive equity award (“LTI Award”) levels) and approximately 70% of our other Named Executive Officers’ 2016 total direct compensation (taken as a group) was variable, with realized value dependent upon future performance.


•	Align management’s interests with equityholders’ interests - Archrock’s and our emphasis on equity-based compensation and ownership encourages executives to act strategically to drive sustainable long-term performance and enhance long-term equityholder value.

How the Archrock Compensation Committee Determines Executive Compensation

The Archrock Compensation Committee is responsible for establishing and overseeing compensation programs that are consistent with Archrock’s compensation philosophy. In carrying out this role, the Archrock Compensation Committee considers such factors as they deem relevant, including the following:



External		Internal
Data and analysis provided by the Archrock Compensation Committee’s independent compensation consultant		Current and past total compensation, including an annual review of base salary, short-term incentive pay and the value of LTI Awards received
Feedback provided from Archrock’s stockholders via its stockholder outreach and the results of Archrock’s advisory say-on-pay vote		Archrock’s performance and operating unit performance (where applicable), as well as each executive’s impact on performance
		The Chief Executive Officer’s recommendations (other than with respect to his own compensation)
		Each executive’s relative scope of responsibility and potential
		Individual performance and demonstrated leadership
		Internal pay equity considerations

Role of Compensation Consultant. For 2016, the Archrock Compensation Committee engaged Pearl Meyer & Partners, LLC (“Pearl Meyer”), an independent third-party compensation consultant, to:


•	provide a review of market trends in executive compensation, including base salary, annual incentives, LTI Awards and total direct compensation; and


•	provide information on how trends, new rules, regulations and laws impact executive and director compensation practice and administration.

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In prior years, Archrock’s compensation consultant provided peer group data that was taken in consideration when the Archrock Compensation Committee reviewed the compensation of our Named Executive Officers. However, for 2016, the Archrock Compensation Committee did not solicit peer group data from Pearl Meyer due to the timing of the spin-off of Archrock’s international contract operations, international aftermarket services and global fabrication businesses (the “Spin-off”) in late 2015, which did not afford the Archrock Compensation Committee sufficient time to evaluate and select a new peer group appropriate for Archrock. Instead, the Archrock Compensation Committee considered an analysis provided by Pearl Meyer of data derived from a survey of 27 oilfield and drilling companies of trends in various components of executive compensation and, specifically, the impact of challenging market conditions in the oil and gas services industry on such compensation components. Based on the Pearl Meyer data, difficult market conditions and Archrock’s focus on cost containment, the Archrock Compensation Committee did not consider increases in the compensation paid to our Named Executive Officers for 2016.

Pearl Meyer also provided input to the Archrock Compensation Committee in their review and determination of the appropriate performance factors for performance-based compensation awarded in 2016.

Following review and consultation with Pearl Meyer, the Archrock Compensation Committee has determined that Pearl Meyer is independent and that no conflict of interest, either currently or during 2016, results from this engagement. The Archrock Compensation Committee continues to monitor the independence of its compensation consultant on a periodic basis.

Role of Management. The most significant aspects of management’s, including the Chief Executive Officer’s, role in the compensation-setting process are:


•	recommending compensation programs, compensation policies, compensation levels and incentive opportunities that are based on analysis provided by Archrock’s independent compensation consultant and are consistent with business strategies;


•	preparing and distributing materials for the Archrock Compensation Committee’s review and consideration;


•	recommending corporate performance goals on which performance-based compensation will be based; and


•	assisting in the evaluation of employee performance.

The Chief Executive Officer annually reviews the performance of each of the other executive officers and recommends salary adjustments, annual cash incentives and LTI Awards for executives other than himself, which the Archrock Compensation Committee considers along with the other factors discussed above.

Elements of Compensation

Archrock’s executive compensation program is designed to align our executive officers’ pay with individual, Archrock and Partnership performance in order to achieve growth, profitability and equityholder return, and to attract and retain executives with the level of expertise and experience necessary to achieve Archrock’s and our business objectives while driving short- and long-term results. The key elements of our Named Executive Officers’ compensation and the primary objectives of each are as follows:



Key Elements of Compensation	Objectives
Base salary	Attract and retain talented executives, recognize individual roles and responsibilities and provide stable income
Annual performance-based incentive compensation	Promote short-term performance objectives and reward executives for their contributions toward achieving those objectives
Long-term incentive (“LTI”) compensation	Align executives’ interests with equityholders’ interests, emphasize long-term financial and operational performance and aid in retention of key executives
Retirement savings, health and welfare benefits	Provide retirement income and protection against the financial hardship that can result from illness, disability or death
Severance benefit and change of control arrangements	Aid in attracting and retaining executive talent, particularly during any potential transition period due to a change of control

Base Salary

In February 2016, the Archrock Compensation Committee reviewed the base salaries of our Named Executive Officers based upon the considerations discussed above under “How the Archrock Compensation Committee Determines Executive Compensation” and determined not to make any increases to our Named Executive Officers’ base salaries for 2016. In light of continued challenging

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market conditions and efforts to reduce costs, effective in August 2016, our Named Executive Officers agreed to a reduction in their base salaries by 10%. Our Named Executive Officers' 2016 base salaries, both before and after the August 2016 reduction, are as indicated below.



Executive Officer	Title	Base Salary Through July 2016 ($)	Base Salary Effective August 2016 ($)
D. Bradley Childers	President and Chief Executive Officer	800,000	720,000
David S. Miller	Senior Vice President and Chief Financial Officer	330,000	297,000
Jason G. Ingersoll	Vice President, Sales and Marketing	300,000	270,000
Robert E. Rice	Senior Vice President and Chief Operating Officer	400,000	360,000
Donald C. Wayne	Senior Vice President and General Counsel	375,000	337,500

Annual Performance-Based Incentive Compensation

During the first quarter of each year, the Archrock Compensation Committee adopts a program to provide the short-term cash incentive element of Archrock’s and our Named Executive Officers’ compensation for that year. In February 2016, the Archrock Compensation Committee adopted the short-term incentive program for 2016 (the “2016 Incentive Program”). Each Named Executive Officer’s cash incentive target was a specified percentage of his beginning base salary in 2016.

Due to industry and market conditions in early 2016, the Archrock Compensation Committee determined to reduce the target performance percentage for achievement of Archrock company performance factors, and thus the target aggregate weighted payout, from 100% to 75%. The table below presents each Named Executive Officer's 2016 cash incentive target as a specified percentage of his base salary, as well as a potential payout assuming achievement of the Archrock company performance factor at 75%.



Executive Officer	Title	2016 Cash Incentive Target (% of base salary)	2016 Cash Incentive Target ($)	2016 Cash Incentive with Reduced Payout at 75%⁽¹⁾ ($)
D. Bradley Childers	President and Chief Executive Officer	110	880,000	660,000
David S. Miller	Senior Vice President and Chief Financial Officer	70	231,000	173,250
Jason G. Ingersoll	Vice President, Sales and Marketing	60	180,000	135,000
Robert E. Rice	Senior Vice President and Chief Operating Officer	70	280,000	210,000
Donald C. Wayne	Senior Vice President and General Counsel	65	243,750	182,813

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⁽¹⁾Assumes Archrock operating unit results and individual results (as discussed below) are achieved at 100%

Each Named Executive Officer’s potential cash payout under the 2016 Incentive Program ranged from 0% to 200% of his incentive target. No payouts would be made unless Archrock company results, as explained below, exceeded 50% of target performance. Under the 2016 Incentive Program, the Archrock Compensation Committee determined payouts to the Named Executive Officers using the following formula:

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Archrock Company Results. As discussed above, the target performance percentage for achievement of the Archrock company performance factors under the 2016 Incentive Program was reduced from 100% to 75%, and as shown in the table below, Archrock company results exceeded that target and were achieved at 86%.



Performance Factor	Target Achievement (75%)	Performance Achieved	Payout Factor	Weight	Payout Achieved
Archrock’s Operating Cash Flow ($ in millions)¹: calculated as Archrock’s consolidated EBITDA, as adjusted,² minus capital expenditures, cash taxes and cash interest, plus non-cash LTI, as adjusted by the decrease or increase in working capital	$172	$244	116%	50%	58%
Archrock’s Operating Horsepower (in millions): Archrock’s operating horsepower as of December 31, 2016	3.250	3.115	61%	25%	15%
Archrock’s Consolidated Debt Ratio: Archrock’s consolidated debt divided by consolidated EBITDA, as adjusted²	4.30x	4.52x	48%	25%	12%
Aggregated Archrock Company Results: the overall achievement factor for Archrock company results would be 0% for aggregate performance achieved blow 50%					86%

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¹Certain benefits achieved from capital expense reductions and working capital reductions were excluded from the calculation of Operating Cash Flow.

² Archrock’s EBITDA, as adjusted, is calculated as net income (loss) excluding income (loss) from discontinued operations (net of tax), cumulative effect of accounting changes (net of tax), income taxes, interest expense (including debt extinguishment costs and gain or loss on termination of interest rate swaps), depreciation and amortization expense, impairment charges, restatement charges, restructuring charges, expensed acquisition costs and other items.

Archrock Operating Unit Results. Under the 2016 Incentive Program, Archrock’s Operating Unit results are set forth in the table below.



	Sales Unit				Services Unit				Non-Operational Functional Support Unit
	Applicable to Ingersoll				Applicable to Rice				Applicable to Wayne
Performance Factor	Weight		Payout Achieved		Weight		Payout Achieved		Weight		Payout Achieved
Safety - TRIR	10	%	10	%	10	%	10	%	10	%	10	%
People - supervisor effectiveness	10	%	10	%	10	%	10	%	10	%	10	%
Contract compression horsepower bookings	30	%	35	%
Aftermarket services revenue	30	%	10	%
Horsepower stops	20	%	17	%
Business unit results					60	%	53	%
Make-ready shops results					20	%	20	%
Operating results									35	%	32	%
Sales results									15	%	12	%
SG&A target									30	%	30	%
Aggregate Archrock Operating Unit Results			82	%			93	%			94	%

Archrock has not disclosed its target levels with respect to the achievement of these operating unit performance factors because they are derived from internal analysis reflecting Archrock’s business strategy and will not otherwise be publicly disclosed. Archrock believes their disclosure would provide its competitors, customers and other third parties with significant insights regarding confidential business strategies that could cause it substantial competitive harm.

Individual Performance. The Archrock Compensation Committee also considered each Named Executive Officer's individual contribution toward Archrock company and/or operating unit performance during 2016 including, as individually applicable, implementation of operational improvements, contribution toward company performance goals and initiatives and demonstrated leadership ability. With respect to Messrs. Miller, Ingersoll, Rice and Wayne, the Archrock Compensation Committee consulted with the Chief Executive Officer. In addition, the Archrock Compensation Committee considered the significant efforts of each executive to execute cost reductions and operational adjustments following the Spin-off, while achieving a high level of operating performance during the year despite challenging market conditions. In assessing Mr. Childers' individual performance for 2016, the Archrock Compensation Committee considered his significant efforts in successfully establishing Archrock as a new company

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and a new brand post-Spin-off, driving operational and financial results in a challenging year for the oil and gas industry, reducing costs and implementing Archrock’s strategy, as well as his overall leadership of the management team and organization during the year. Following such assessments, the Archrock Compensation Committee determined that each Named Executive Officer met or exceeded expectations for a full individual performance payout for 2016.

2016 Incentive Program Payments. Following the end of fiscal year 2016, the Archrock Compensation Committee calculated the individual cash payments under the 2016 Incentive Program by multiplying the Named Executive Officers’ target cash incentives by the achievement percentages for the applicable company, operating unit and individual performance factors described above, and then adding an incremental amount to reflect each executive’s significant individual efforts during the year, all as set forth in the table below. In August 2016, Mr. Childers voluntarily elected to forgo his payment under the 2016 Incentive Program. As set forth below, had Mr. Childers not waived his annual short-term incentive award, he would have been eligible to receive $753,000. The Archrock Compensation Committee recognized Mr. Childers for achievement of Archrock company performance in excess of target under the 2016 Incentive Plan and gave serious consideration to paying Mr. Childers incentive compensation notwithstanding his prior waiver of any award under the 2016 Incentive Program. The Archrock Compensation Committee also noted that a portion of certain incentive compensation amounts received by Mr. Childers in prior years would not have been earned had such compensation been determined solely on the basis of Archrock’s restated financial statements, although it believes that such portion would have been less than the amount of payout he otherwise earned and has forfeited under the 2016 Incentive Plan. In light of the restatement, the Archrock Compensation Committee has determined to treat Mr. Childers’ waiver of such incentive award for 2016 as an appropriate form of reimbursement of those prior amounts received by Mr. Childers.



Executive Officer	2016 Cash Incentive Target	x	Company Performance Factor Achieved	x	Operating Unit Performance Factor Achieved	x	Individual Performance Factor Achieved	=	Payout Earned (%)	=	Payout Earned ($)	Actual Payout ($)
D. Bradley Childers	880,000		86%		N/A		100%		86%		753,000	—
David S. Miller	231,000		86%		N/A		100%		86%		198,000	210,000
Jason G. Ingersoll	180,000		86%		82%		100%		70%		126,000	130,000
Robert E. Rice	280,000		86%		93%		100%		80%		224,000	225,000
Donald C. Wayne	243,750		86%		94%		100%		80%		196,000	200,000

Long-Term Incentive Compensation

The Archrock Compensation Committee believes that awarding a meaningful portion of our Named Executive Officers’ total compensation in the form of LTI Awards aligns our executives’ interests with equityholders’ interests, emphasizes long-term financial and operational performance and helps to retain key executives. For 2016, the Archrock Compensation Committee made grants of:


•	Archrock Restricted Stock to encourage retention and incentivize Archrock’s employees to work toward long-term performance goals by aligning their interests with the interests of Archrock’s stockholders;


•	Archrock Performance Awards encourage long-range planning through performance factors designed to focus key employees on performance improvements and initiatives and reward sustained stockholder value creation; and


•	Partnership Phantom Units with distribution equivalent rights (“DERs”) emphasize our growth objectives. DERs are the right to receive cash distributions on the units.

Grants of restricted stock and performance awards during calendar year 2016 were made under the Archrock, Inc. 2013 Stock Incentive Plan (as amended, the “2013 Stock Incentive Plan”), which was approved by Archrock’s stockholders in April 2013. The 2013 Stock Incentive Plan is administered by the Archrock Compensation Committee. Awards of Partnership phantom units were made from the Partnership Plan, which expired in October 2016 and is administered by our compensation committee.

Our compensation committee’s general practice is to grant equity-based awards to our directors and officers once a year in the first quarter, around the time the Archrock Compensation Committee grants equity-based awards to Archrock’s executive officers, although it is anticipated that our equity-based awards will be granted in the second quarter of 2017 conditioned upon unitholder approval of a new Partnership long-term incentive plan. The schedule for making annual LTI Awards is generally established several months in advance, and is not set based on knowledge of material nonpublic information or in response to our unit price. This practice results in awards typically being granted on a regular, predictable annual cycle (with certain exceptions, such as upon

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the hiring of a new employee or following the promotion of an employee). In some instances, our compensation committee may be aware, at the time grants are made, of matters or potential developments that are not ripe for public disclosure at that time but that may result in public announcement of material information at a later date. LTI Awards are granted and valued based on the market closing price of Archrock’s common stock or our common units on the date of approval by the applicable compensation committee.

2016 LTI Awards. In determining the 2016 LTI Awards for each Named Executive Officer, the Archrock Compensation Committee considered the factors discussed above under “How the Archrock Compensation Committee Determines Executive Compensation,” and also reviewed share utilization with respect to the 2013 Stock Incentive Plan, potential overhang and burn rate under various award scenarios. Based on challenging market conditions, including an uncertain economic environment within our industry, the annual LTI Awards made by the Archrock Compensation Committee in March 2016 to our Named Executive Officers (excluding Mr. Ingersoll, who was appointed to a new role at the time of the Spin-off) had aggregate grant date values that were 8% to 10% lower than the amounts awarded to our Named Executive Officers in March 2015. Due to his expanded role following the Spin-off, the value of the 2016 LTI Awards granted to Mr. Ingersoll was increased by approximately 27% over the value of his 2015 awards.

Because Archrock’s stock price experienced significant volatility in 2015 and early 2016, and also due to Archrock’s stock price at the time LTI Awards were made in March 2016, the Archrock Compensation Committee determined that the award of stock options at the then-current stock price would significantly increase the burn rate under its 2013 Stock Incentive Plan. Therefore, the Archrock Compensation Committee determined not to award stock options in 2016 and instead approved a mix of 2016 LTI Awards for our Named Executive Officers that included Archrock restricted stock and performance units and our phantom units. These awards were made in March 2016, and all of the awards time-vest one-third per year over a three-year period from the date of grant, subject to continued service through the vesting date. In addition, LTI Awards may be subject to accelerated vesting as described below under “Potential Payments upon Termination or Change of Control.”

Restricted Stock. The Archrock Compensation Committee awarded restricted stock to our Named Executive Officers in 2016. Under the terms of the 2013 Stock Incentive Plan, dividend equivalent rights are paid on all unvested shares of restricted stock as and when they are paid to Archrock’s common stockholders.

2016 Performance Units. The performance units awarded to the Named Executive Officers in 2016 (the “2016 Performance Units”) became payable based on achievement of the following performance factors (subject to the time-vest requirements described above):



Performance Factor	Target Achievement (100%)	Performance Achieved	Payout Factor	Weight	Weighted Payout Achieved
Archrock’s Operating Cash Flow ($ in millions)⁽¹⁾: calculated as Archrock’s consolidated EBITDA, as adjusted⁽²⁾, minus capital expenditures, cash taxes and cash interest, plus non-cash LTI, as adjusted by the decrease or increase in working capital	$172	$244	1.83	50%	92%
Archrock’s Operating Horsepower (in millions): Archrock’s operating horsepower at December 31, 2016	3.250	3.115	0.73	25%	18%
Archrock’s Consolidated Debt Ratio: Archrock’s consolidated debt divided by Archrock’s consolidated EBITDA, as adjusted⁽²⁾	4.30	4.52x	0.45	25%	11%
Aggregated Archrock Results: the payout is 0% for aggregate performance achieved below 50%; payout is capped at 150%					121%

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⁽¹⁾Certain benefits achieved from capital expense reductions and working capital reductions were excluded from the calculation of Operating Cash Flow.

⁽²⁾ Archrock’s EBITDA, as adjusted, is calculated as net income (loss) excluding income (loss) from discontinued operations (net of tax), cumulative effect of accounting changes (net of tax), income taxes, interest expense (including debt extinguishment costs and gain or loss on termination of interest rate swaps), depreciation and amortization expense, impairment charges, restatement charges, restructuring charges, expensed acquisition costs and other items.

The earned 2016 Performance Units are based on a target performance percentage of 100% for achievement of the performance factors listed above, as well as a different scaling for achievement of the performance factors than the scaling under the 2016 Incentive Program, and are payable in cash based on the market closing price of Archrock’s common stock on the applicable vesting date. In addition, the 2016 Performance Units were granted with tandem dividend equivalents, which are accrued during

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the performance period and are paid if and when the applicable performance measures are achieved and the 2016 Performance Units become earned. See the Grants of Plan-Based Awards Table for 2016 below for more information about the 2016 Performance Units awarded to our Named Executive Officers.

Phantom Units. The Partnership Plan, which is administered by our compensation committee, provides for the grant of incentive compensation awards based on our common units. The phantom units are granted with tandem DERs, which are paid as and when distributions are paid to our common unit holders. During 2016, our Named Executive Officers received an award of phantom units with DERs.

Retirement Savings, Health and Welfare Benefits

Our Named Executive Officers participate in Archrock’s company-sponsored benefit programs on generally the same basis as Archrock’s other salaried employees. These benefits are designed to provide retirement income and protection against the financial hardship that can result from illness, disability or death.

Retirement Savings Plan. The Archrock 401(k) Plan allows certain employees who are U.S. citizens, including our Named Executive Officers, to defer a portion of their eligible salary, up to the Code maximum deferral amount, on a pre-tax basis or on a post-tax (Roth) basis. Participants make contributions to an account maintained by an independent trustee and direct how those contributions are invested. Archrock matches 100% of a participant’s contribution to a maximum of 1% of his or her annual eligible compensation, plus 50% of the participant’s contribution from 2% to a maximum of 6% of his or her annual eligible compensation, for a total company match of up to 3.5% of annual eligible compensation. Participants vest in Archrock’s matching contributions after two years of employment.

Deferred Compensation Plan. The Archrock Deferred Compensation Plan (the “Archrock Deferred Compensation Plan”) allows certain key employees who are U.S. citizens, including our Named Executive Officers, to defer receipt of their compensation, including up to 100% of their salaries and bonuses, and be credited with Archrock contributions designed to serve as a make-up for the portion of the employer-matching contribution that cannot be made under the Archrock 401(k) Plan due to Code limits. Participants generally must make elections relating to compensation deferrals and plan distributions in the year preceding that in which the compensation is earned. Contributions to the Archrock Deferred Compensation Plan are self-directed investments in the various funds available under the plan. There are thus no interest calculations or earnings measures other than the performance of the investment funds selected by the participant. Participants direct how their contributions are invested and may change these elections at any time, provided that such changes in elections comply with Section 409A of the Code.

Health and Welfare Benefit Plans. Archrock maintains a standard complement of health and welfare benefit plans for its employees, including our Named Executive Officers, which provide medical, dental and vision benefits, health savings and flexible spending accounts, short-term and long-term disability insurance, accidental death and dismemberment insurance and life insurance coverage. These benefits are provided to our Named Executive Officers on the same terms and conditions as they are provided to Archrock’s other employees.

Perquisites. As in prior years, the only perquisite provided to our Named Executive Officers was tax preparation and planning services, a taxable benefit. Archrock policy prohibits tax gross-ups on perquisites.

Executive Employment and 2016 Compensation Letters

Employment Letters. In connection with the Spin-off, on November 3, 2015, each of Messrs. Childers, Miller, Ingersoll, Rice and Wayne, who served as our and Archrock’s executive officers following the Spin-off, entered into employment letters with Archrock (the “Employment Letters”), which set forth the applicable executive’s title and reporting relationship, base salary, annual target incentive and eligibility for annual equity awards. Under the Employment Letters, each Named Executive Officer is eligible for an annual base salary, annual short-term incentive target and annual equity award value, which annual short-term incentive and annual equity award value are subject to annual review in the discretion of the Archrock Compensation Committee. In addition, each Employment Letter provides that the applicable executive is eligible to participate in all employee benefit plans maintained by Archrock for the benefit of its executives generally. Pursuant to his Employment Letter, Mr. Ingersoll received a cash retention payment of $73,920 in 2016, which was designed to encourage the continued service of Mr. Ingersoll up to and following the date of the Spin-off despite the uncertainty created by the transaction.

2016 Compensation Letters. In light of market conditions in 2016 and actions taken by Archrock to reduce costs, including reductions to Archrock’s staffing levels, and to improve cash flow, each of our Named Executive Officers entered into compensation letters (the “Compensation Letters”) with Archrock on August 3, 2016, which provide for a 10% reduction in each executive’s annual base salary. In addition, pursuant to his Compensation Letter, Mr. Childers voluntarily waived his annual short-term incentive award under the 2016 Incentive Program.

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Under each executive’s Compensation Letter, if an executive incurs a qualifying termination of employment under his severance benefit agreement with Archrock or his change of control agreement with Archrock, then, for purposes of calculating the applicable executive’s severance payments and benefits under his severance benefit agreement or change of control agreement (as applicable), Archrock will apply the executive’s pre-reduction base salary and, for Mr. Childers, the target short-term incentive opportunity that would have otherwise applied to Mr. Childers with respect to fiscal year 2016. In addition, each such executive waived his right to resign for “good reason” (as defined in their respective severance benefit and change of control agreements) in connection with the compensation reductions described in the Compensation Letters.

Severance Benefit Agreements and Change of Control Arrangements

Severance Benefit and Change of Control Agreements. Archrock has entered into severance benefit agreements and change of control agreements with each of our Named Executive Officers. The Archrock Compensation Committee believes that severance and change of control agreements are necessary to attract and retain executive talent and are, therefore, a customary part of executive compensation. Archrock’s change of control agreements are structured as “double trigger” agreements. In other words, the change of control alone does not trigger benefits; rather, benefits are paid only if the executive incurs a qualifying termination of employment within six months before or 18 months following a change of control. See “Potential Payments upon Termination or Change of Control,” below, for a description of the terms of the change of control agreements and the severance benefit agreements with our Named Executive Officers during 2016, as well as estimates of the potential payouts under those agreements.

Equity Plans. All outstanding awards granted to employees under the 2013 Stock Incentive Plan and the Partnership Plan are structured as “double trigger” arrangements - that is, the grantee is only entitled to accelerated vesting in connection with a change in control if the grantee incurs a qualifying termination of employment within 18 months following the change in control. See “Potential Payments upon Termination or Change of Control,” below, for more information about equity vesting under various circumstances.

Other Policies and Considerations

Unit Ownership Requirements. We do not have any policy or guidelines that require specified ownership of our common units by our directors or executive officers or any unit retention guidelines applicable to equity-based awards granted to directors or executive officers. As of February 18, 2017, our independent directors collectively held 85,734 common units, and our Named Executive Officers collectively held 90,712 common units and 193,270 unvested phantom units with DERs.

Prohibition on Hedging and Pledging. Archrock’s policy prohibits all employees and directors from entering into any transaction designed to hedge or offset any decrease in the market value of its or our equity securities, including purchasing financial instruments (such as variable forward contracts, equity swaps, collars or exchange funds), or otherwise trading in market options (such as puts or calls), warrants, or other derivative instruments of its or our equity securities. In addition, our Named Executive Officers and directors may not pledge, hypothecate or otherwise encumber Archrock’s or our equity securities as collateral for indebtedness.

Tax and Accounting Considerations

Section 162(m) of the Code. As we are a partnership and not a corporation taxable as such for U.S. federal income tax purposes, we are not subject to the executive compensation tax deductible limitations of Section 162(m) of the Code. However, as Archrock has an ownership interest in our equity securities, our compensation committee is mindful of the impact that Section 162(m) may have on compensatory deductions passed through to Archrock.

Section 409A of the Code. Section 409A of the Code requires that “nonqualified deferred compensation” be deferred and paid under plans or arrangements that satisfy the requirements of the statute with respect to the timing of deferral elections, timing of payments and certain other matters. Failure to satisfy these requirements can expose employees and directors to accelerated income tax liabilities, substantial additional taxes and interest on their vested compensation under such plans. Accordingly, as a general matter, it is Archrock’s intention to design and administer its compensation and benefit plans and arrangements for all of its employees and directors, including our Named Executive Officers, so that they are either exempt from, or satisfy the requirements of, Section 409A of the Code.

Accounting for Stock-Based and Unit-Based Compensation. We and Archrock have followed Financial Accounting Standards Board Accounting Standards Codification 718, “Stock Compensation” (“ASC 718”) in accounting for stock-based and unit-based compensation awards. ASC 718 requires companies to calculate the grant date “fair value” of their stock-based and unit-based awards using a variety of assumptions. ASC 718 also requires companies to recognize the compensation cost of their stock-based and unit-based awards in their income statements over the period that an employee is required to render service in exchange for the award. Archrock expects that it will regularly consider the accounting implications of significant compensation decisions, especially in connection with decisions that relate to its and our equity incentive award plans and programs. As accounting standards

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change, Archrock may revise certain programs to appropriately align accounting expenses of its or our equity awards with Archrock’s overall executive compensation philosophy and objectives.

Compensation Committee Report

The Compensation Committee of the Board of Directors of Archrock GP LLC has reviewed and discussed the Compensation Discussion and Analysis required by Item 402(b) of Regulation S-K with management. Based on such review and discussions, the Compensation Committee recommended to the board of directors of Archrock GP LLC that the Compensation Discussion and Analysis be included in this Annual Report on Form 10-K.

Submitted by the Compensation Committee:

G. Stephen Finley, Chair

James G. Crump

Edmund P. Segner, III

Summary Compensation Table for 2016

The following table shows the compensation paid during the years shown to our Named Executive Officers. The numbers presented below are the full amounts received by each Named Executive Officer and have not been adjusted to reflect the amount allocated to us.



Name and Title	Year	Salary ($)(1)	Bonus ($)(2)	Stock Awards ($)(3)	Option Awards ($)	Non-Equity Incentive Plan Compensation ($)(4)		All Other Compensation ($)(5)	Total ($)
D. Bradley Childers,	2016	769,231	—	2,999,997	—	753,000	(6)	383,376	4,905,604
President and Chief	2015	800,000	—	5,300,002	—	500,000		205,409	6,805,411
Executive Officer	2014	765,385	—	2,359,485	907,457	2,000,000		243,543	6,275,870
David S. Miller, Senior	2016	317,309	—	499,999	—	210,000		79,004	1,106,312
Vice President and	2015	330,000	132,027	817,985	—	325,000		44,809	1,649,821
Chief Financial Officer
Jason G. Ingersoll,	2016	288,462	73,920	299,999	—	130,000		40,260	832,641
Vice President, Sales and Marketing
Robert E. Rice,	2016	384,616	—	600,005	—	225,000		104,523	1,314,144
Senior Vice President	2015	400,001	396,039	1,453,969	—	181,000		57,257	2,488,266
and Chief Operating	2014	386,155	—	464,765	178,748	825,000		57,962	1,912,630
Officer
Donald C. Wayne,	2016	360,577	—	499,999	—	200,000		74,428	1,135,004
Senior Vice President,	2015	375,001	132,030	817,984	—	350,000		44,822	1,719,837
General Counsel and	2014	369,231	—	544,498	—	500,000		56,390	1,470,119
Secretary

(1) Amounts reported in this column reflect base salaries earned on a fiscal year basis. As discussed above under “Base Salary,” effective August 2016, all of our Named Executive Officers agreed to a voluntary reduction in their base salaries by 10%.

(2) The amount in this column for 2016 represents a cash retention payment awarded in 2015 in connection with the Spin-off. The award was made pursuant to Mr. Ingersoll’s Employment Letter and was designed to encourage continued service of Mr. Ingersoll up to and following the date of the Spin-off despite the uncertainty created by the transaction.

(3) The amounts in this column for 2016 represent the grant date fair value of (a) restricted shares of Archrock’s common stock, (b) Archrock 2016 Performance Units at target level, and (c) our phantom units. The grant date fair values of the 2016 Performance Units at maximum level were as follows: Mr. Childers: $1,125,003; Mr. Miller: $187,496; Mr. Ingersoll: $112,498; Mr. Rice: $225,004; and Mr. Wayne: $187,496. The grant date fair value of these awards was calculated in accordance with ASC 718, Compensation-Stock Compensation (“ASC 718”). For a discussion of valuation assumptions, see Note 17 (“Stock-Based Compensation and Awards”) to the consolidated financial statements in Archrock’s Annual Report on Form 10-K for the year ended December 31, 2016.

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(4) For Messrs. Miller, Ingersoll, Rice and Wayne, the amounts in this column for 2016 represent cash payments under the 2016 Incentive Program, which covered the compensation measurement and performance year ended December 31, 2016, and will be paid during the first quarter of 2017.

(5) The amounts in this column for 2016 include the following:



Name	401(k) Plan Company Contribution ($)(a)	Deferred Compensation Plan Company Contribution ($)(b)	DERs / Dividends ($)(c)	Other ($)(d)	Total ($)
D. Bradley Childers	9,275	244	367,457	6,400	383,376
David S. Miller	9,275	681	65,317	3,731	79,004
Jason G. Ingersoll	9,275	—	27,026	3,959	40,260
Robert E. Rice	9,275	—	91,693	3,555	104,523
Donald C. Wayne	9,275	744	59,909	4,500	74,428

(a) The amounts shown represent Archrock’s matching contributions for 2016.

(b) Our Named Executive Officers could contribute up to 100% of their base pay and bonus to the Archrock Deferred Compensation Plan, and Archrock made certain matching contributions designed to serve as a make-up for the portion of the employer matching contributions that cannot be made under Archrock’s 401(k) plan due to Code limits.

(c) Represents cash payments pursuant to (i) dividends on unvested restricted shares of Archrock’s common stock awarded under Archrock’s Amended and Restated 2007 Stock Incentive Plan (the “2007 Stock Incentive Plan”) and the 2013 Stock Incentive Plan, (ii) dividend equivalents accrued in 2016 to be paid in March 2017 on unvested 2016 Performance Units awarded under the 2013 Stock Incentive Plan as finally determined by the Archrock Compensation Committee following conclusion of the 2016 performance period, and (iii) DERs on unvested Partnership phantom units awarded under the Partnership Plan.

(d) Represents taxable reimbursement of tax preparation and financial planning services and, for Messrs. Miller, Ingersoll and Rice, a payment by Archrock of $500 to their health savings account provided to all employees who elected to open such account.

(6) As discussed above under “Annual Performance-Based Incentive Compensation,” Mr. Childers voluntarily waived his payment under the 2016 Incentive Program, and thus received no payment for the compensation measurement and performance period ended December 31, 2016 under the 2016 Incentive Program.

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Grants of Plan-Based Awards for 2016

The following table shows the short- and long-term incentive plan awards granted to the Named Executive Officers in 2016. The numbers presented below are the full amounts received by each Named Executive Officer and have not been adjusted to reflect the amount allocated to us.



		Estimated Possible Payouts Under Non-Equity Incentive Plan Awards(1)			Estimated Possible Payouts Under Equity Incentive Plan Awards(2)			All Other Stock Awards: Number of Shares of Stock or Units (#)	All Other Option Awards: Number of Securities Underlying Options (#)	Exercise or Base Price of Option Awards ($/SH)	Grant Date Fair Value of Stock and Option Awards ($)(3)
Name	Grant Date	Threshold ($)	Target ($)	Max ($)	Threshold (#)	Target (#)	Max (#)
D. Bradley Childers	3/4/2016	440,000	880,000	1,760,000	—	123,153	184,729		—	—	750,002
	3/4/2016							246,305(4)			1,499,997
	3/4/2016							95,633(5)			749,998
David S. Miller	3/4/2016	115,500	231,000	462,000	—	20,525	30,787		—	—	124,997
	3/4/2016							41,051(4)			250,001
	3/4/2016							15,944(5)			125,001
Jason G. Ingersoll	3/4/2016	90,000	180,000	360,000	—	12,315	18,472		—	—	74,998
	3/4/2016							24,631(4)			150,003
	3/4/2016							9,566(5)			74,997
Robert E. Rice	3/4/2016	140,000	280,000	560,000	—	24,631	36,946		—	—	150,003
	3/4/2016							49,261(4)			299,999
	3/4/2016							19,133(5)			150,003
Donald C. Wayne	3/4/2016	121,875	243,750	487,500	—	20,525	30,787		—	—	124,997
	3/4/2016							41,051(4)			250,001
	3/4/2016							15,944(5)			125,001

(1) The amounts in these columns show the range of potential payouts under the 2016 Incentive Program. The actual payouts under the plan were determined in February 2017 and will be paid in March 2017, as shown in the Summary Compensation Table for 2016, above. As discussed above under “Annual Performance-Based Incentive Compensation,” Mr. Childers voluntarily elected to forfeit his payment under the 2016 Incentive Program and, accordingly, did not receive payment of any short-term incentive for 2016.

(2) The amounts in these columns show the range of potential payouts of Archrock 2016 Performance Units awarded as part of the 2016 LTI Award. “Target” is 100% of the number of 2016 Performance Units awarded. “Threshold” is the lowest possible payout (0% of the grant), and “Maximum” is the highest possible payout (150% of the grant). See “Long-Term Incentive Compensation - 2016 Performance Units” for a description of the 2016 Performance Units.

(3) The grant date fair value of Archrock performance units, Archrock restricted stock, and our phantom units is calculated in accordance with ASC 718. For a discussion of valuation assumptions, see Note 17 (“Stock-Based Compensation and Awards”) to the consolidated financial statements in Archrock’s Annual Report on Form 10-K for the year ended December 31, 2016.

(4) Shares of Archrock restricted stock awarded under the 2013 Stock Incentive Plan that vest one-third per year over a three-year period, subject to continued service through each vesting date.

(5) Phantom units awarded under the Partnership Plan that vest one-third per year over a three-year period, subject to continued service through each vesting date.

Outstanding Equity Awards at Fiscal Year-End for 2016

The following table shows our Named Executive Officers’ equity awards and equity-based awards denominated in Archrock’s common stock and our common units outstanding at December 31, 2016. The numbers presented below are the full amounts received by each Named Executive Officer and have not been adjusted to reflect the amount allocated to us.

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	Option Awards				Stock Awards
Name	Number of Securities Underlying Unexercised Options (#) Exercisable	Number of Securities Underlying Unexercised Options (#) Unexercisable	Option Exercise Price ($)	Option Expiration Date	Number of Shares or Units of Stock That Have Not Vested (#)	Market Value of Shares or Units of Stock That Have Not Vested ($)	Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Yet Vested (#)	Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Yet Vested ($)
Name			Option Exercise Price ($)	Option Expiration Date	Number of Shares or Units of Stock That Have Not Vested (#)
D. Bradley Childers	13,360		46.03	6/12/2017
	32,335		13.92	2/28/2017
	33,772		13.96	3/4/2018
	219,258		6.25	12/12/2018			5,075(4)	66,990(3)
	90,404		15.32	3/4/2020	375,231(2)	4,953,049(3)	22,536(6)	297,475(3)
	41,556	22,335(1)	25.18	3/4/2021	122,371(5)	1,962,831(8)	149,039(7)	1,967,315(3)
David S. Miller	11,498		13.81	8/12/2017	67,291(2)	888,241(3)	846(4)	11,167(3)
	13,162		13.96	3/4/2018	20,395(5)	327,136(8)	3,756(6)	49,579(3)
							24,839(7)	327,879(3)
Jason G. Ingersoll					32,572(2)	429,950(3)	361(4)	4,765(3)
					9,566(5)	153,439(8)	1,604(6)	21,173(3)
							14,903(7)	196,720(3)
Robert E. Rice	3,996		13.96	3/4/2018
	29,855		8.79	3/4/2019			1,000(4)	13,200(3)
	18,734		15.32	3/4/2020	95,929(2)	1,266,263(3)	4,438(6)	58,582(3)
	8,185	5,650(1)	25.18	3/4/2021	24,393(5)	391,264(8)	29,808(7)	393,471(3)
Donald C. Wayne	7,356		46.03	6/12/2017	69,826(2)	921,703(3)	846(4)	11,167(3)
					16,545(5)	265,382(8)	3,756(6)	49,579(3)
							24,839(7)	327,879(3)

(1) Archrock stock options awarded under the 2013 Stock Incentive Plan that vest at the rate of one-third per year beginning on March 4, 2015, subject to continued service through each vesting date, with a term of seven years following the grant date.

(2) Includes the following awarded under the 2013 Stock Incentive Plan: (a) shares of Archrock restricted stock that vest at the rate of one-third per year beginning on the initial vesting date shown below and (b) Archrock retention restricted stock awards granted in connection with the Spin-off, which were intended to incentivize such executives to remain in employment with Archrock up to and following the Spin-off, as follows:

•Mr. Childers’ retention restricted stock award was 33% vested on the date of grant, vested 33% on November 3, 2016, and will vest 34% on November 3, 2017

•Messrs. Rice, Miller and Wayne's retention restricted stock awards vested 50% on November 3, 2016 and will vest 50% on November 3, 2017.

Archrock restricted stock awards are subject to the applicable individual’s continued service through each vesting date.

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Name	Unvested Shares	Initial Vesting Date
D. Bradley Childers	7,346	3/4/2015
	67,610	3/4/2016
	53,970	11/4/2015
	246,305	3/4/2017
David S. Miller	2,449	3/4/2015
	1,888	9/22/2015
	11,268	3/4/2016
	10,635	11/3/2016
	41,051	3/4/2017
Jason G. Ingersoll	1,522	3/4/2015
	6,419	3/4/2016
	24,631	3/4/2017
Robert E. Rice	1,447	3/4/2015
	13,316	3/4/2016
	31,905	11/3/2016
	49,261	3/4/2017
Donald C. Wayne	3,116	3/4/2015
	15,024	3/4/2016
	10,635	11/3/2016
	41,051	3/4/2017

(3) Based on the market closing price of Archrock’s common stock on December 31, 2016: $13.20.

(4) Archrock performance units awarded under the 2013 Stock Incentive Plan that vest at the rate of one-third per year beginning on March 4, 2015, subject to continued service through each vesting date. Amounts shown are the actual number of units earned, as determined by the Archrock Compensation Committee following the conclusion of the applicable performance period.

(5) Phantom units awarded under the Partnership Plan that vest at the rate of one-third per year beginning on the initial vesting date shown below, subject to continued service through each vesting date.



Name	Unvested Units	Initial Vesting Date
D. Bradley Childers	9,016	3/4/2015
	17,692	3/4/2016
	95,663	3/4/2017
David S. Miller	1,503	3/4/2015
	2,948	3/4/2016
	15,944	3/4/2017
Jason G. Ingersoll	9,566	3/4/2017
Robert E. Rice	1,776	3/4/2015
	3,484	3/4/2016
	19,133	3/4/2017
Donald C. Wayne	601	3/4/2015
	15,944	3/4/2017

(6) Archrock performance units awarded under the 2013 Stock Incentive Plan that vest at the rate of one-third per year beginning on March 4, 2016, subject to continued service through each vesting date. Amounts shown are the actual number of units earned, as determined by the Archrock Compensation Committee following the conclusion of the applicable performance period.

(7) Archrock performance units awarded under the 2013 Stock Incentive Plan that vest at the rate of one-third per year beginning on March 4, 2017, subject to continued service through each vesting date. Amounts shown are the actual number of units earned, as determined by the Archrock Compensation Committee following the conclusion of the applicable performance period.

(8) Based on the market closing price of our common units on December 31, 2016: $16.04.

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Option Exercises and Stock Vested for 2016

The following table shows the value realized by the Named Executive Officers upon stock option exercises and stock award vesting of equity awards covering Archrock’s common stock and our common units during 2016. The value realized upon vesting represents the total value to each Named Executive Officer and does not represent the amount allocated to us.



	Option Awards		Stock Awards
Name	Number of Shares Acquired on Exercise (#)	Value Realized on Exercise ($)	Number of Shares and Units Acquired on Vesting (#)(1)	Value Realized on Vesting ($)(2)
D. Bradley Childers	—	—	158,529	1,271,685
David S. Miller	—	—	32,015	266,492
Jason G. Ingersoll	—	—	9,208	56,077
Robert E. Rice	—	—	52,587	486,437
Donald C. Wayne	—	—	34,334	263,586


(1)	Includes Archrock’s restricted stock and our phantom units that vested during 2016.

(2) The value realized for vested awards was determined by multiplying the fair market value of Archrock restricted stock (market closing price of Archrock’s common stock on the vesting date) or our phantom units (market closing price of our common units on the vesting date) by the number of shares or units that vested. Shares and units vested on various dates throughout the year; therefore, the value listed represents the aggregate value of all shares and units that vested for each Named Executive Officer in 2016.

Nonqualified Deferred Compensation for 2016

The following table shows the Named Executive Officers’ compensation for 2016 under the Archrock nonqualified deferred compensation plan.



Name	Executive Contributions in Last Fiscal Year ($)	Company Contributions in Last Fiscal Year ($)(1)	Aggregate Earnings (Losses) in Last Fiscal Year ($)	Aggregate Withdrawals/ Distributions ($)	Aggregate Balance at Last Fiscal Year End ($)
D. Bradley Childers	—	244	13,709	—	253,552
David S. Miller	—	681	158	—	10,371
Jason G. Ingersoll	—	—	540	—	21,787
Robert E. Rice	—	—	258	—	16,529
Donald C. Wayne	—	744	2,454	—	64,654

(1)

The amounts in this column represent Company contributions to each of Messrs. Childers, Ingersoll, Miller, Rice and Wayne's Archrock Deferred Compensation Plan account earned in 2016 but paid in the first quarter of 2017. These amounts are included in “All Other Compensation” in the Summary Compensation Table for 2016, above, but are not included in “Aggregate Balance at Last Fiscal Year End.”

Under the Archrock Deferred Compensation Plan, eligible employees are permitted to defer receipt of up to 100% of their base salary, annual bonus and, if designated by the plan administrator, regular commissions. Archrock also makes certain employer matching contributions designed to serve as a make-up for the portion of the employer matching contributions that cannot be made under Archrock’s 401(k) plan due to Code limits. The amounts deferred under each participant’s Archrock Deferred Compensation Plan account are deemed to be invested in investment alternatives chosen by the participant from a range of choices established by the plan administrator. The balances of participant accounts are adjusted to reflect the gains or losses that would have been obtained if the participant contributions had actually been invested in the applicable investment alternatives.

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Participants may elect to defer the distribution of their account balances until the occurrence of a specified future date or event, including: (i) a future date while the participant is employed by Archrock, as specified by the participant, (ii) the participant’s separation from service (within the meaning of Section 409A of the Code), including due to death, or (iii) the participant’s disability. Participants may also elect whether to receive distributions of their account balances in a single lump-sum amount or in annual installments to be paid over a period of two to ten years.

Payment of a participant’s account will be made or commence, as applicable, as follows:


•	for lump sum payments, on the earlier of: (x) in the case of a specified in-service date, January 1 of such year and (y) in the case of a separation from service or disability, the date of the participant’s separation of service or, if earlier, disability and


•	for installment payments, the earlier of: (x) in the case of a specified in-service date, January 1 of such year and (y) in the case of a separation from service or disability, January 1 of the calendar year immediately following the date of the participant’s separation of service or, if earlier, disability.

The Archrock Deferred Compensation Plan is administered by the Archrock Compensation Committee. The Deferred Compensation Plan is an unfunded plan for tax purposes and for purposes of Title I of the Employee Retirement Income Security Act of 1974, as amended. Archrock has also established a “rabbi trust” to satisfy its obligations under the Archrock Deferred Compensation Plan.

Potential Payments upon Termination or Change of Control

Severance Benefit Agreements. Archrock has entered into severance benefit agreements with each of our Named Executive Officers. Each such agreement provides that if the executive’s employment is terminated by Archrock without cause or by the executive with good reason at any time through the term of the agreement (one year, to be automatically renewed for successive one-year periods until notice of non-renewal is given by either party), he will receive a lump sum payment in cash on the 35^th day after the termination date equal to the sum of:


•	his annual base salary then in effect;


•	his target annual incentive bonus opportunity for the termination year; and


•	a pro-rated portion of his target annual incentive bonus opportunity for the termination year based on the length of time during which he was employed during such year; and


•	any earned but unpaid annual incentive award for the fiscal year ending prior to the termination date.

In addition, the executive would be entitled to:

•

the accelerated vesting as of the termination date of that portion of his outstanding unvested (i) Archrock equity, equity-based or cash awards, (ii) Partnership phantom units (subject to the consent of our compensation committee) and (iii) equity, equity-based or cash awards denominated in shares of Exterran Corporation’s common stock (subject to the consent of the Exterran Corporation compensation committee), in each case, that was scheduled to vest within 12 months following the termination date; and


•	continued coverage under Archrock’s medical benefit plans for him and his eligible dependents for up to one year following the termination date.

Each executive’s entitlement to the payments and benefits under his severance benefit agreement is subject to his execution of a waiver and release for Archrock’s benefit. In addition, each executive is subject to non-disparagement restrictions following termination.

Change of Control Agreements. Archrock has entered into change of control agreements with each of our Named Executive Officers. Each such agreement provides that if the executive’s employment is terminated by Archrock other than for cause, death or disability, or by the executive for good reason (in each case, a “Qualifying Termination”), within six months before or 18 months following a change of control (as defined in the change of control agreements), he would receive a cash payment within 60 days after the termination date equal to:


•	two times (three times in the case of Mr. Childers) his current annual base salary plus two times (three times in the case of Mr. Childers) his target annual incentive bonus opportunity for that year;


•	a pro-rated portion of the target annual incentive bonus opportunity for the termination year based on the length of time during which the executive was employed during such year;

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•	any earned but unpaid annual incentive award for the fiscal year ending prior to the termination date; and


•	two times the total of Archrock contributions that would have been credited to him under the Archrock 401(k) Plan and any other deferred compensation plan had he made the required amount of elective deferrals or contributions during the 12 months immediately preceding the termination month.

In addition, the executive would be entitled to:


•	any amount previously deferred, or earned but not paid, by him under the incentive and nonqualified deferred compensation plans or programs as of the termination date;


•	continued coverage under Archrock’s medical benefit plans for him and his eligible dependents for up to two years following the termination date;


•	the accelerated vesting of all his Archrock unvested stock options, restricted stock, restricted stock units or other stock-based awards, all Partnership common units, unit appreciation rights, unit awards or other unit-based awards and all cash-based incentive awards and all Exterran Corporation equity, equity-based or cash awards.

The change of control agreements do not provide for tax gross-ups. Instead, the agreements include a Section 280G “best pay” provision pursuant to which in the event any payments or benefits received by the executive would be subject to an excise tax under Section 4999 of the Code, the executive will receive either the full amount of his payments or a reduced amount such that no portion of the payments is subject to the excise tax (whichever results in the greater after-tax benefit to the executive).

Each executive’s entitlement to the payments and benefits under his change of control agreement is also subject to his execution of a waiver and release for Archrock’s benefit. In addition, in the event an executive receives payments from Archrock under his change of control agreement, such executive will be subject to confidentiality, non-disclosure, non-solicitation and non-competition restrictions for two years following a termination of his employment.

Vesting of Equity-Based Incentives

Upon a Change of Control. The award agreements for all outstanding equity awards provide that no portion of the award shall be subject to accelerated vesting solely upon a change of control. Instead, such awards will be subject to accelerated vesting only if a Qualifying Termination occurs within eighteen months following a change of control.

Upon a Termination Due to Death or Disability. The award agreements for all outstanding equity awards provide that, upon a termination due to death or disability, the award will accelerate in full. Archrock performance units will accelerate in full based on (i) the achievement of the applicable performance goals if such goals have been determined as of the date of termination or (ii) achievement at the target performance level if the applicable performance goals have not been determined as of the date of termination.

Potential Payments. The following tables show the potential payments to the Named Executive Officers upon a theoretical termination of employment or change of control (as applicable) occurring on December 31, 2016. The amounts shown assume an Archrock common stock value of $13.20 per share, a common stock value of $23.90 per share of Exterran Corporation’s common stock and a Partnership common unit value of $16.04 per unit (the December 31, 2016 market closing prices, respectively). The actual amount paid out to an executive upon an actual termination or change of control can only be determined at the time of such event.

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Potential Payments upon Termination or Change of Control



Name	Termination Due to Death or Disability ($)(1)	Termination Without Cause or Resignation with Good Reason ($)(2)		Change of Control Without a Qualifying Termination ($)	Change of Control with a Qualifying Termination ($)
D. Bradley Childers
Cash Severance	—	2,560,000	(3)	—	5,920,000	(4)
Stock Options(5)	—	—		—	—
Restricted Stock(6)	5,040,834	2,427,124		—	5,040,834
Phantom Units(7)	1,164,841	411,929		—	1,164,841
Performance Awards(8)	2,050,743	818,259		—	2,050,743
Other Benefits(9)	—	15,649		—	120,145
Total Pre-Tax Benefit	8,256,418	6,232,961		—	14,296,563
David S. Miller
Cash Severance	—	792,002	(3)	—	1,353,003	(4)
Stock Options(5)	—	—		—	—
Restricted Stock(6)	940,056	504,439		—	940,056
Phantom Units(7)	194,132	68,651		—	194,132
Performance Awards(8)	341,786	136,377		—	341,786
Other Benefits(9)	—	13,591		—	72,143
Total Pre-Tax Benefit	1,475,975	1,515,059		—	2,901,121
Jason G. Ingersoll
Cash Severance	—	660,000	(3)	—	1,140,000	(4)
Stock Options(5)	—	—		—	—
Restricted Stock(6)	448,138	189,020		—	448,138
Phantom Units(7)	102,287	34,096		—	102,287
Performance Awards(8)	192,822	73,864		—	192,822
Other Benefits(9)	—	15,355		—	56,725
Total Pre-Tax Benefit	743,247	972,334		—	1,939,972
Robert E. Rice
Cash Severance	—	960,002	(3)	—	1,640,004	(4)
Stock Options(5)	—	—		—	—
Restricted Stock(6)	1,283,566	762,184		—	1,283,566
Phantom Units(7)	232,532	82,168		—	232,532
Performance Awards(8)	408,861	162,817		—	408,861
Other Benefits(9)	—	7,638		—	54,980
Total Pre-Tax Benefit	1,924,959	1,974,809		—	3,619,943
Donald C. Wayne
Cash Severance	—	862,500	(3)	—	1,481,250	(4)
Stock Options(5)	—	—		—	—
Restricted Stock(6)	958,939	498,532		—	958,939
Phantom Units(7)	170,489	56,830		—	170,489
Performance Awards(8)	341,786	136,377		—	341,786
Other Benefits(9)	—	15,649		—	81,039
Total Pre-Tax Benefit	1,471,215	1,569,888		—	3,033,503


(1)	“Disability” is defined in the Partnership’s form of award agreement for phantom units and in the 2007 Stock Incentive Plan and the 2013 Stock Incentive Plan for all Archrock equity awards.


(2)	“Cause” and “Good Reason” are defined in the severance benefit agreements.


(3)	If the executive had been terminated without Cause or resigned with Good Reason on December 31, 2016, under his severance benefit agreement, his cash severance would consist of (i) the sum of his base salary and his target annual

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incentive bonus (calculated as a percentage of his annual base salary for 2016), plus (ii) his target annual incentive bonus (calculated as a percentage of his annual base salary for 2016).

(4)

If the executive had been subject to a Change of Control followed by a Qualifying Termination (as defined in his change of control agreement) on December 31, 2016, under his change of control agreement his cash severance would consist of (i) two times (three times for Mr. Childers) the sum of his base salary and his target annual incentive bonus (calculated as a percentage of his annual base salary for 2016), plus (ii) his target annual incentive bonus (calculated as a percentage of his annual base salary for 2016).


(5)	The amounts in this row represent the value of the accelerated vesting of the executive’s unvested, in-the-money options to purchase Archrock’s and Exterran Corporation’s common stock, based on the respective December 31, 2016 market closing prices of Archrock’s and Exterran Corporation’s common stock.


(6)	The amounts in this row represent the value of the accelerated vesting of the executive’s unvested restricted stock of Archrock and Exterran Corporation, based on the respective December 31, 2016 market closing prices of Archrock’s and Exterran Corporation’s common stock.


(7)	The amounts in this row represent the value of the accelerated vesting of the executive’s unvested Partnership phantom units, based on the December 31, 2016 market closing price of our common units.


(8)	The amounts in this row represent the value of the accelerated vesting of the executive’s unvested performance awards of Archrock and Exterran Corporation, based on the respective December 31, 2016 market closing price of Archrock’s and Exterran Corporation’s common stock.

(9)

The amounts in this row represent each Named Executive Officer’s right to the payment, as applicable, of (i) medical benefit premiums for a one-year period in the event of a termination without Cause or voluntary resignation for Good Reason, or (ii) medical benefit premiums for a two-year period and two times Archrock’s contributions for the preceding 12 months under the Archrock 401(k) Plan and the Archrock Deferred Compensation Plan in the event of a change of control followed by a Qualifying Termination.

Risk Assessment Related to Archrock’s Compensation Structure

As disclosed above under “Overview,” as is commonly the case for many publicly traded limited partnerships, we have no employees. Under the terms of our partnership agreement, we are ultimately managed by Archrock GP LLC, the general partner of Archrock General Partner, L.P., our general partner. In addition, as disclosed above under “Our Compensation Committee’s Structure and Responsibilities,” the compensation structure for our executive officers is generally established by the Archrock Compensation Committee, which performed a risk assessment and believes that its compensation programs do not create risks that are reasonably likely to have a material adverse effect on Archrock. For example, the Archrock Compensation Committee and management set performance goals in light of past performance, future expectations and market conditions, which they believe do not encourage the taking of unreasonable risks. The Archrock Compensation Committee believes its practice of considering non-financial and other qualitative factors in determining compensation awards discourages excessive risk-taking and encourages good judgment. In addition, Archrock believes employee compensation is allocated between cash and equity-based awards, between fixed and variable awards, and between short-term and long-term focused compensation in a manner that encourages decision-making that balances short-term goals with long-term goals and thereby reduces the likelihood of excessive risk taking. Finally, the Archrock Compensation Committee has established multiple performance indicators in its short-term incentive program that balance various Archrock objectives, short-term incentive awards with maximum payout levels and long-term incentive awards with three-year vesting periods, which Archrock believes further balances short- and long-term objectives and encourages employee behavior designed to achieve sustained profitability and growth.

Our compensation committee conducted a similar assessment, with input from our executive management, and determined, based on the same considerations discussed above in relation to Archrock’s risk assessment, that Archrock’s and our compensation policies do not create risks that are reasonably likely to have a material adverse effect on us.

Compensation Committee Interlocks and Insider Participation

Messrs. Finley, Crump and Segner served on our compensation committee during 2016. There are no matters relating to interlocks or insider participation that we are required to report.

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ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Unitholder Matters

Securities Authorized for Issuance Under Equity Compensation Plans

The following table sets forth information as of December 31, 2016 with respect to the compensation plans under which our common units are authorized for issuance:



Plan Category	(a) Number of Securities to be Issued Upon Exercise of Outstanding Options, Warrants and Rights (#)	(b) Weighted-Average Exercise Price of Outstanding Options, Warrants and Rights ($)		(c) Number of Securities Remaining Available for Future Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column (a)) (#)
Equity compensation plans approved by security holders (1)	196,536	—	(2)	—
Equity compensation plans not approved by security holders	—	—		—
Total	196,536	—		—


(1)	For more information about our Long-Term Incentive Plan, which expired in October 2016, please read Note 10 (“Unit-Based Compensation”) to our Financial Statements.


(2)	Phantom units do not have an exercise price.

Security Ownership of Certain Beneficial Owners

The following table sets forth information as of February 16, 2017, with respect to persons known to us to be the beneficial owners of more than five percent of our outstanding common units. Beneficial ownership is determined in accordance with Rule 13d-3 under the Exchange Act.


⁽¹⁾	As a percentage of the total limited partner interest. When taking into consideration the 2% general partner interest, the percentages reflected in this column are 7%, 11% and 45% (including the general partner interest), respectively.


⁽²⁾	Based solely on a review of the Schedule 13G/A jointly filed by Harvest Funds Advisors LLC on February 10, 2017.


⁽³⁾	Based solely on a review of the Schedule 13G/A jointly filed by OppenheimerFunds, Inc. and Oppenheimer SteelPath MLP Income Fund on January 26, 2017.

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Security Ownership of Management

The following table sets forth information as of February 16, 2017, with respect to our common units beneficially owned by Archrock GP LLC’s directors, Named Executive Officers and all of our current directors and executive officers as a group. Each beneficial owner has sole voting and investment power with respect to all the units attributed to him.



Name of Beneficial Owner	Units Owned Directly	Phantom Units⁽¹⁾	Total Ownership	Percent of Class
Named Executive Officers
D. Bradley Childers	52,347	49,750	102,097	*
David S. Miller	17,332	8,292	25,624	*
Robert E. Rice	12,349	9,896	22,245	*
Donald C. Wayne	7,684	5,916	13,600	*
Jason G. Ingersoll	1,000	3,189	4,189	*

Directors	—
James G. Crump	29,510	—	29,510	*
G. Stephen Finley	32,117	—	32,117	*
Edmund P. Segner, III	24,107	—	24,107	*
All directors, Named Executive Officers and current executive officers as a group (9 persons)	176,446	77,043	253,489	*

* Less than 1%


⁽¹⁾	Only includes phantom units that vest within 60 days of February 16, 2017

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Item 13. Certain Relationships and Related Transactions, and Director Independence

Transactions with Related Persons

Distributions and Payments to Our General Partner and its Affiliates

As of December 31, 2016, Archrock and its subsidiaries owned 29,064,637 common units, which constitutes 43% of the limited partner interest in us, and 1,326,965 general partner units, which constitute the entire 2% general partner interest in us. Archrock is, therefore, a “related person” relative to us under SEC regulations, and we believe that Archrock has and will continue to have a direct and indirect material interest in its various transactions with us.

The following summarizes the distributions and payments made or to be made by us to our general partner and its affiliates in connection with the ongoing operation of Archrock Partners, L.P.



Distributions of available cash to our general partner and its affiliates		We generally make cash distributions of 98% to our unitholders on a pro rata basis, including our general partner and its affiliates, as the holders of 29,064,637 common units, and 2% to our general partner. In addition, if distributions exceed the minimum quarterly distribution and other higher target distribution levels, then our general partner is entitled to increasing percentages of the distributions, up to 50% of the distributions above the highest target distribution level.

		During the year ended December 31, 2016, our general partner and its affiliates received aggregate distributions of $6.5 million on their general partner units, including distributions on our general partner’s incentive distribution rights, and $33.7 million on their limited partner units. On February 14, 2017, our general partner and its affiliates received a quarterly distribution with respect to the period from October 1, 2016 to December 31, 2016, of $0.4 million on their general partner units, including distributions on our general partner’s incentive distribution rights, and $8.3 million on their common units.

Payments to our general partner and its affiliates		We reimburse Archrock and its affiliates for the payment of all direct and indirect expenses incurred on our behalf. Through December 31, 2014, our obligation to reimburse Archrock and its affiliates was subject to certain caps; however, effective January 1, 2015, the cost caps provisions of the Omnibus Agreement terminated. For further information regarding the reimbursement of these expenses, please read “— Omnibus Agreement” below.

Pursuant to the terms of our Omnibus Agreement (as described below), we reimburse Archrock for (1) allocated expenses of operational personnel who perform services for our benefit, (2) direct costs incurred in operating and maintaining our business and (3) allocated SG&A expenses. Our general partner does not receive any compensation for managing our business. Our general partner and its affiliates are reimbursed for all expenses incurred on our behalf, including the compensation of Archrock employees who perform services on our behalf. These expenses include all expenses necessary or appropriate to provide for the conduct of our business and that are allocable to us. Our partnership agreement provides that our general partner will determine in good faith the expenses that are allocable to us. Effective January 1, 2015, there is no cap on the amount that may be paid or reimbursed to our general partner or its affiliates for compensation or expenses incurred on our behalf.

Omnibus Agreement with Archrock

We are party to an Omnibus Agreement with Archrock, our general partner, and others, which is described below. The Omnibus Agreement (other than the indemnification obligations described below under “— Indemnification for Environmental and Related Liabilities”) will terminate upon a change of control of our general partner or the removal or withdrawal of our general partner, and certain provisions will terminate upon a change of control of Archrock.

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Non-competition

Some of our customers are also Archrock contract operations services customers, which we refer to as overlapping customers. We and Archrock have agreed, subject to the exceptions described below, not to provide contract operations services to an overlapping customer at any site at which the other was providing such services to an overlapping customer on the date of the most recent amendment to the Omnibus Agreement, each being referred to as a “Partnership site” or an “Archrock site,” as applicable. Pursuant to the Omnibus Agreement, if an overlapping customer requests contract operations services at a Partnership site or an Archrock site, whether in addition to or in replacement of the equipment existing at such site on the date of the most recent amendment to the Omnibus Agreement, we may provide contract operations services if such overlapping customer is a Partnership overlapping customer, and Archrock will be entitled to provide such contract operations services if such overlapping customer is an Archrock overlapping customer. Additionally, any additional contract operations services provided to a Partnership overlapping customer will be provided by us and any additional services provided to an Archrock overlapping customer will be provided by Archrock.

Archrock also has agreed that new customers for contract compression services are for our account unless the new customer is unwilling to contract with us under our form of compression services agreement. In that case, Archrock may provide compression services to the new customer. If we or Archrock enter into a compression services contract with a new customer, either we or Archrock, as applicable, will receive the protection of the applicable non-competition arrangements described above in the same manner as if such new customer had been a compression services customer of either us or Archrock on the date of the Omnibus Agreement.

The non-competition arrangements described above do not apply to:


•	our provision of contract compression services to a particular Archrock customer or customers, with the approval of Archrock;


•	Archrock’s provision of contract compression services to a particular customer or customers of ours, with the approval of the conflicts committee of our board of directors;


•	our purchase and ownership of not more than five percent of any class of securities of any entity that provides contract compression services to Archrock’s contract compression services customers;


•	Archrock’s purchase and ownership of not more than five percent of any class of securities of any entity that provides contract compression services to our contract compression services customers;


•	Archrock’s ownership of us;

•

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•

Indemnification for Environmental and Other Liabilities

Additionally, Archrock will indemnify us for losses attributable to title defects, retained assets and income taxes attributable to pre-closing operations. We will indemnify Archrock for all losses attributable to the post-closing operations of the assets contributed to us, to the extent not subject to Archrock indemnification obligations. For the year ended December 31, 2016, there were no requests for indemnification by either party.

Transfer, Exchange or Lease of Compression Equipment with Archrock

If Archrock determines in good faith that we or Archrock’s contract operations services business need to transfer, exchange or lease compression equipment between Archrock and us, the Omnibus Agreement permits such equipment to be transferred, exchanged or leased if it will not cause us to breach any existing contracts, suffer a loss of revenue under an existing compression services contract or incur any unreimbursed costs. In consideration for such transfer, exchange or lease of compression equipment, the transferee will either (1) transfer to the transferor compression equipment equal in value to the appraised value of the compression equipment transferred to it, (2) agree to lease such compression equipment from the transferor or (3) pay the transferor an amount in cash equal to the appraised value of the compression equipment transferred to it. These provisions will terminate on December 31, 2018 unless terminated earlier as discussed above.

During the year ended December 31, 2016, we transferred ownership of 462 compressor units, totaling approximately 205,000 horsepower with a net book value of approximately $92.4 million, to Archrock. In exchange, Archrock transferred ownership of 339 compressor units, totaling approximately 154,000 horsepower with a net book value of approximately $96.2 million, to us. During the year ended December 31, 2016, we recorded capital distributions of approximately $3.8 million related to the differences in net book value on the exchanged compression equipment. No customer contracts were included in the transfers. Under the terms of the Omnibus Agreement, such transfers must be of equal appraised value, as defined in the Omnibus Agreement, with any difference being settled in cash.

At December 31, 2016, we had equipment on lease to Archrock with an aggregate cost and accumulated depreciation of $4.3 million and $0.7 million, respectively. During the year ended December 31, 2016, we had revenue of $0.1 million from Archrock related to the lease of our compression equipment and cost of sales of $0.3 million with Archrock related to the lease of Archrock compression equipment.

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Reimbursement of Operating and SG&A Expense

Archrock provides all operational staff, corporate staff and support services reasonably necessary to run our business. These services may include, without limitation, operations, marketing, maintenance and repair, periodic overhauls of compression equipment, inventory management, legal, accounting, treasury, insurance administration and claims processing, risk management, health, safety and environmental, information technology, human resources, credit, payroll, internal audit, taxes, facilities management, investor relations, enterprise resource planning system, training, executive, sales, business development and engineering.

Archrock charges us for costs that are directly attributable to us. Costs that are indirectly attributable to us and Archrock other operations are allocated among Archrock’s other operations and us. The allocation methodologies vary based on the nature of the charge and have included, among other things, revenue, headcount and horsepower. We believe that the allocation methodologies used to allocate indirect costs to us are reasonable. Included in our SG&A expense during the year ended December 31, 2016 was $68.8 million of indirect costs incurred by Archrock.

Indemnification of Directors and Officers

Under our partnership agreement, in most circumstances, we will indemnify the following persons, to the fullest extent permitted by law, from and against all losses, claims, damages or similar events:


•	our general partner;


•	any departing general partner;


•	any person who is or was an affiliate of a general partner or any departing general partner;


•	any person who is or was a director, officer, member, partner, fiduciary or trustee of any entity set forth in the preceding three bullet points;


•	any person who is or was serving as director, officer, member, partner, fiduciary or trustee of another person at the request of our general partner or any departing general partner; and


•	any person designated by our general partner.

Any indemnification under these provisions will only be made out of our assets. Unless it otherwise agrees, our general partner will not be personally liable for, or have any obligation to contribute or lend funds or assets to us to enable us to effectuate, indemnification. We may purchase insurance against liabilities asserted against and expenses incurred by persons for our activities, regardless of whether we would have the power to indemnify the person against liabilities under our partnership agreement.

Review, Approval or Ratification of Transactions with Related Persons

Our Code of Business Conduct requires all employees, officers and directors of our general partner, its subsidiaries and affiliates, including Archrock Partners and Archrock (collectively, the “Archrock Group”), to avoid situations involving a “conflict of interest.” A conflict of interest occurs when an individual’s private interest interferes or appears to interfere with the interests of the Archrock Group. A conflict of interest can arise when a person takes actions or has interests that make it difficult to perform his or her work objectively and effectively. Any current or potential conflict of interest must be disclosed to our chief compliance officer. Employment with or service to Archrock as an employee, officer or director, and any compensation or benefits received from such employment or service, or any individual’s ownership interest in Archrock do not constitute conflicts of interest under our Code of Business Conduct.

Our Code of Business Conduct provides that directors and executive officers (and, to the extent not executive officers, our principal financial officer, principal accounting officer and controller) must obtain authorization from the audit committee for any conflict of interest. When deciding whether to authorize such a transaction, the audit committee may consider, among other things, the nature of the transaction and the relationship, the dollar amount involved and the availability of reasonable alternatives.

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Our board of directors has established a conflicts committee to carry out certain duties set forth in our partnership agreement and the Omnibus Agreement, and to carry out any other duties delegated by the board of directors that involve or relate to conflicts of interests between us and Archrock, including its operating subsidiaries. The related party transactions in which we engaged in 2016 were typically of a recurring, ordinary course nature with Archrock. The conflicts committee reviews on a quarterly basis these recurring, ordinary course transactions with Archrock.

The conflicts committee is charged with acting on an informed basis, in good faith and with an honest belief that any action it takes is in our best interests. In taking any such action, including the resolution of any conflict of interest, the conflicts committee is authorized to consider any factors it determines in its sole discretion to be relevant, reasonable or appropriate under the circumstances.

Director Independence

Please see Part III, Item 10 (“Directors, Executive Officers and Corporate Governance — Board of Directors”) of this Annual Report on Form 10-K for a discussion of director independence matters.

Item 14. Principal Accountant Fees and Services

During the years ended December 31, 2016 and 2015, fees for professional services rendered by our independent registered public accounting firm, Deloitte & Touche LLP, were billed to Archrock and then charged to us. The services rendered during the years ended December 31, 2016 and 2015 were for the audit of our annual financial statements and work related to registration statements and cost approximately $0.9 million and $0.6 million, respectively. All of the fees during each of the years ended December 31, 2016 and 2015 were “Audit Fees,” and none of those fees constituted “Audit-Related Fees,” “Tax Fees” or “All Other Fees,” as such terms are defined by the SEC.

In considering the nature of the services provided by Deloitte & Touche LLP, our audit committee determined that such services are compatible with the provision of independent audit services. The audit committee discussed these services with the independent auditor and our management to determine that they are permitted under the rules and regulations concerning auditor independence promulgated by the SEC to implement the Sarbanes-Oxley Act of 2002, as well as the American Institute of Certified Public Accountants.

All services performed by the independent registered public accounting firm during 2016 and 2015 were approved in advance by our audit committee. Any requests for audit, audit-related, tax and other services to be performed by Deloitte & Touche LLP must be submitted to our audit committee for pre-approval. Normally, pre-approval is provided at regularly scheduled meetings. However, the authority to grant pre-approval between meetings, as necessary, has been delegated to the audit committee chair, or, in the absence or unavailability of the chair, one of the other members. Any such pre-approval must be reviewed at the next regularly scheduled audit committee meeting.

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) Documents filed as a part of this Annual Report on Form 10-K.


1.	Financial Statements. The following financial statements are filed as a part of this Annual Report on Form 10-K.



Report of Independent Registered Public Accounting Firm	F-1
Consolidated Balance Sheets	F-2
Consolidated Statements of Operations	F-3
Consolidated Statements of Comprehensive Income	F-4
Consolidated Statements of Partners’ Capital	F-5
Consolidated Statements of Cash Flows	F-6
Notes to Consolidated Financial Statements	F-7


2.	Financial Statement Schedule



Schedule II — Valuation and Qualifying Accounts	S-1

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All other schedules have been omitted because they are not required under the relevant instructions.


3.	Exhibits



Exhibit No.		Description
2.1		Purchase and Sale Agreement, dated February 27, 2014, between EXLP Operating LLC and MidCon Compression, L.L.C., incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on March 5, 2014
2.2		Closing Agreement and First Amendment to Purchase and Sale Agreement, dated April 10, 2014, between EXLP Operating LLC and MidCon Compression, L.L.C., incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on April 15, 2014
2.3		Second Amendment to Purchase and Sale Agreement, dated April 22, 2014, between EXLP Operating LLC and MidCon Compression, L.L.C., incorporated by reference to Exhibit 2.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014
2.4		Purchase and Sale Agreement, dated July 11, 2014, between EXLP Operating LLC and MidCon Compression, L.L.C., incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on July 14, 2014
2.5		Contribution, Conveyance and Assumption Agreement, dated April 17, 2015, by and among Exterran Holdings, Inc., Exterran Energy Solutions, L.P., EES Leasing LLC, EXH GP LP LLC, Exterran GP LLC, EXH MLP LP LLC, Exterran General Partner, L.P., EXLP Operating LLC, EXLP Leasing LLC and Exterran Partners, L.P., incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on April 20, 2015
2.6		Contribution, Conveyance and Assumption Agreement, dated October 31, 2016, by and among Archrock, Inc., Archrock Services, L.P., Archrock Services Leasing LLC, Archrock GP LP LLC, Archrock GP LLC, Archrock MLP LP LLC, Archrock General Partner, L.P., Archrock Partners Operating LLC, Archrock Partners Leasing LLC and Archrock Partners, L.P., incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on November 3, 2016
3.1		Certificate of Limited Partnership of Universal Compression Partners, L.P. (now Archrock Partners, L.P.), incorporated by reference to Exhibit 3.1 to the Registrant’s Registration Statement on Form S-1 filed on June 27, 2006
3.2		Certificate of Amendment to Certificate of Limited Partnership of Universal Compression Partners, L.P. (now Archrock Partners, L.P.), dated as of August 20, 2007, incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on August 24, 2007
3.3		Certificate of Amendment of Certificate of Limited Partnership of Exterran Partners, L.P. (now Archrock Partners, L.P.), incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on November 5, 2015
3.4		Composite Certificate of Limited Partnership of Archrock Partners, L.P., incorporated by reference to Exhibit 3.4 to the Registrant’s Annual Report on Form 10-K filed on February 29, 2016
3.5		First Amended and Restated Agreement of Limited Partnership of Exterran Partners, L.P. (now Archrock Partners, L.P.), as amended, incorporated by reference to Exhibit 3.3 to the Registrant’s Quarterly Report on form 10-Q for the quarter ended March 31, 2008
3.6		Certificate of Limited Partnership of UCO General Partner, LP (now Archrock General Partner, L.P.), incorporated by reference to Exhibit 3.3 to the Registrant’s Registration Statement on Form S-1 filed on June 27, 2006
3.7		Amended and Restated Limited Partnership Agreement of UCO General Partner, LP (now Archrock General Partner, L.P.), incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K filed on October 26, 2006
3.8		Certificate of Formation of UCO GP, LLC (now Archrock GP LLC), incorporated by reference to Exhibit 3.5 to the Registrant’s Registration Statement on Form S-1 filed June 27, 2006
3.9		Amended and Restated Limited Liability Company Agreement of UCO GP, LLC (now Archrock GP LLC), incorporated by reference to Exhibit 3.3 to the Registrant’s Current Report on Form 8-K filed on October 26, 2006
4.1		Indenture, dated as of March 27, 2013, by and among Exterran Partners, L.P., EXLP Finance Corp., the Guarantors named therein and Wells Fargo Bank, National Association, incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on March 28, 2013

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4.2		Registration Rights Agreement, dated as of March 27, 2013, by and among Exterran Partners, L.P., EXLP Finance Corp., the Guarantors named therein and Wells Fargo Securities, LLC, as representative of the Initial Purchasers, incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K filed on March 28, 2013
4.3		Indenture, dated as of April 7, 2014, by and among Exterran Partners, L.P., EXLP Finance Corp., the Guarantors named therein and Wells Fargo Bank, National Association, incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on April 11, 2014
4.4		Registration Rights Agreement, dated as of April 7, 2014, by and among Exterran Partners, L.P., EXLP Finance Corp., the Guarantors named therein and Wells Fargo Securities, LLC, as representative of the Initial Purchasers, incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K filed on April 7, 2014
10.1		Fourth Amended and Restated Omnibus Agreement, dated November 3, 2015, by and among Archrock, Inc., formerly named Exterran Holdings, Inc., Archrock Services, L.P., formerly named Exterran US Services OpCo, L.P., Archrock GP LLC, formerly named Exterran GP LLC, Archrock General Partner, L.P., formerly named Exterran General Partner, L.P., Archrock Partners, L.P., formerly named Exterran Partners, L.P., and Archrock Partners Operating LLC, incorporated by reference to Exhibit 10.8 to the Registrant’s Annual Report on Form 10-K filed on February 29, 2016 (portions of this exhibit have been omitted by redacting a portion of the text (indicated by asterisks in the text) and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment)
10.2*		First Amendment to Fourth Amended and Restated Omnibus Agreement, dated November 19, 2016, by and among Archrock, Inc., Archrock Services, L.P., Archrock GP LLC, Archrock General Partner, L.P., Archrock Partners, L.P., and Archrock Partners Operating LLC (portions of this exhibit have been omitted by redacting a portion of the text (indicated by asterisks in the text) and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment)
10.3		Amended and Restated Senior Secured Credit Agreement, dated as of November 3, 2010, by and among EXLP Operating LLC, as Borrower, Exterran Partners, L.P., as Guarantor, Wells Fargo Bank, National Association, as Administrative Agent, Bank of America, N.A. and JPMorgan Chase Bank, N.A., as Co-Syndication Agents, Barclays Bank plc and The Royal Bank of Scotland plc, as Co-Documentation Agents, and the lenders signatory thereto, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on November 9, 2010
10.4		Amended and Restated Guaranty Agreement, dated as of November 3, 2010, made by Exterran Partners, L.P. and EXLP Leasing LLC in favor of Wells Fargo Bank, National Association, as Administrative Agent, incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on November 9, 2010
10.5		Amended and Restated Collateral Agreement, dated as of November 3, 2010, made by EXLP Operating LLC, Exterran Partners, L.P. and EXLP Leasing LLC in favor of Wells Fargo Bank, National Association, as Administrative Agent, incorporated by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K filed on November 9, 2010
10.6		First Amendment to Amended and Restated Senior Secured Credit Agreement, dated March 7, 2012, among EXLP Operating LLC, as Borrower, Exterran Partners, L.P., as Guarantor, Wells Fargo Bank, National Association, as Administrative Agent and Swingline Lender, and the other lenders signatory thereto, incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed on March 13, 2012
10.7		Third Amendment to Amended and Restated Senior Secured Credit Agreement, dated March 27, 2013, among EXLP Operating LLC, as Borrower, Exterran Partners, L.P., as Guarantor, Wells Fargo Bank, National Association, as Administrative Agent, and the other lenders signatory thereto, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on March 28, 2013
10.8		Fourth Amendment to Amended and Restated Senior Secured Credit Agreement, dated February 4, 2015, among EXLP Operating LLC, as Borrower, Exterran Partners, L.P., as Guarantor, Wells Fargo Bank, National Association, as Administrative Agent, and the other lenders signatory thereto, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on February 5, 2015
10.9		Fifth Amendment to Amended and Restated Senior Secured Credit Agreement and First Amendment to Amended and Restated Collateral Agreement, dated May 2, 2016, among Archrock Partners Operating LLC, as Borrower, Archrock Partners, L.P., as Guarantor, Wells Fargo Bank, National Association, as Administrative Agent, and the other lenders party thereto, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on May 6, 2016
10.10		Second Amendment to Amended and Restated Collateral Agreement, dated June 17, 2016, among Archrock Partners Operating LLC, as Borrower, Archrock Partners, L.P., the other grantors party thereto, the lenders party thereto and Wells Fargo Bank, National Association, as Administrative Agent, incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on August 4, 2016
10.11†		Universal Compression Partners, L.P. (now Archrock Partners, L.P.) Long-Term Incentive Plan, incorporated by reference to Exhibit 10.2 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 filed October 4, 2006

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10.12†		First Amendment to Exterran Partners, L.P. (now Archrock Partners, L.P.) Long-Term Incentive Plan, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed February 29, 2008
10.13†		Second Amendment to Exterran Partners, L.P. (now Archrock Partners, L.P.) Long-Term Incentive Plan, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed October 30, 2008
10.14†		Third Amendment to Exterran Partners, L.P. (now Archrock Partners, L.P.) Long-Term Incentive Plan, incorporated by reference to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2008
10.15†		Fourth Amendment to the Exterran Partners, L.P. (now Archrock Partners, L.P.) Long-Term Incentive Plan, incorporated by reference to the Registrant’s Current Report on Form 8-K filed on November 5, 2015
10.16†		Form of Exterran Partners, L.P. (now Archrock Partners, L.P.) Award Notice and Agreement for Phantom Units with DERs, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on March 10, 2014
10.17†		Form of Exterran Partners, L.P. (now Archrock Partners, L.P.) Award Notice and Agreement for Unit Award for Non-Employee Directors, incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on March 10, 2014
10.18†		Form of Exterran Partners, L.P. (now Archrock Partners, L.P.) First Amendment to Award Notice and Agreement for Phantom Units with DERs, incorporated by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014
10.19†		Form of Archrock Partners, L.P. Award Notice and Agreement for Phantom Units with DERs, incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on February 24, 2016
10.20†		Form of Archrock Partners, L.P. Award Notice and Agreement for Unit Award for Non-Employee Directors, incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on February 24, 2016
10.21		Supply Agreement, dated November 3, 2015, by and among Archrock Services, L.P., EXLP Operating LLC, and Exterran Energy Solutions, L.P., incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on November 5, 2015
21.1*		List of Subsidiaries of Archrock Partners, L.P.
23.1*		Consent of Deloitte & Touche LLP
31.1*		Certification of the Principal Executive Officer of Archrock GP LLC (as general partner of the general partner of Archrock Partners, L.P.) pursuant to Rule 13a-14 under the Securities Exchange Act of 1934
31.2*		Certification of the Principal Financial Officer of Archrock GP LLC (as general partner of the general partner of Archrock Partners, L.P.) pursuant to Rule 13a-14 under the Securities Exchange Act of 1934
32.1**		Certification of the Chief Executive Officer of Archrock GP LLC (as general partner of the general partner of Archrock Partners, L.P.) pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2**		Certification of the Chief Financial Officer of Archrock GP LLC (as general partner of the general partner of Archrock Partners, L.P.) pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.1*		Interactive data files pursuant to Rule 405 of Regulation S-T

† Management contract or compensatory plan or arrangement.

* Filed herewith.

** Furnished, not filed.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Annual Report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized.



		ARCHROCK PARTNERS, L.P.

		By:	ARCHROCK GENERAL PARTNER, L.P.
			its General Partner
		By:	ARCHROCK GP LLC
			its General Partner
		By:	/s/ D. BRADLEY CHILDERS
			D. Bradley Childers
			Chief Executive Officer
			(Principal Executive Officer)
Date:	February 23, 2017

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POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints D. Bradley Childers, David S. Miller and Donald C. Wayne, and each of them, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution for him and in his name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done as fully to all said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue thereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been signed below by the following persons on behalf of the registrant and in the capacities indicated on February 23, 2017.



Name		Title

/s/ D. BRADLEY CHILDERS		President, Chief Executive Officer and Chairman of the Board, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P. (Principal Executive Officer)
D. Bradley Childers


/s/ DAVID S. MILLER		Senior Vice President, Chief Financial Officer and Director, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P. (Principal Financial Officer)
David S. Miller


/s/ DONNA A. HENDERSON		Vice President and Chief Accounting Officer, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P. (Principal Accounting Officer)
Donna A. Henderson


/s/ JAMES G. CRUMP		Director, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P.
James G. Crump

/s/ G. STEPHEN FINLEY		Director, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P.
G. Stephen Finley

/s/ DONALD C. WAYNE		Senior Vice President, General Counsel and Director of Archrock GP, LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P.
Donald C. Wayne


/s/ ROBERT E. RICE		Senior Vice President and Director, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P. (Principal Operating Officer)
Robert E. Rice


/s/ EDMUND P. SEGNER III		Director, Archrock GP LLC, as General Partner of Archrock General Partner, L.P., as General Partner of Archrock Partners, L.P.
Edmund P. Segner, III

100

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Partners of

Archrock Partners, L.P.

Houston, Texas

We have audited the accompanying consolidated balance sheets of Archrock Partners, L.P. and subsidiaries (the “Partnership”) as of December 31, 2016 and 2015, and the related consolidated statements of operations, comprehensive income (loss), partners’ capital, and cash flows for each of the three years in the period ended December 31, 2016. Our audits also included the financial statement schedule listed in the Index at Item 15. These financial statements and financial statement schedule are the responsibility of the Partnership’s management. Our responsibility is to express an opinion on the financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of the Partnership as of December 31, 2016 and 2015, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2016, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Partnership’s internal control over financial reporting as of December 31, 2016, based on the criteria established in Internal Control-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 23, 2017 expressed an unqualified opinion on the Partnership's internal control over financial reporting.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 23, 2017

F-1

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ARCHROCK PARTNERS, L.P.

CONSOLIDATED BALANCE SHEETS

(In thousands, except for unit amounts)



	December 31,
	2016			2015
ASSETS
Current assets:
Cash and cash equivalents	$	217		$	472
Accounts receivable, trade, net of allowance of $1,398 and $2,463, respectively	69,974			85,183
Total current assets	70,191			85,655
Property, plant and equipment	2,655,780			2,661,996
Accumulated depreciation	(903,556		)	(846,213		)
Property, plant and equipment, net	1,752,224			1,815,783
Intangible and other assets, net	80,959			93,215
Total assets	$	1,903,374		$	1,994,653
LIABILITIES AND PARTNERS’ CAPITAL
Current liabilities:
Accrued liabilities	$	7,400		$	6,696
Accrued interest	12,337			12,443
Due to affiliates, net	8,012			5,980
Current portion of interest rate swaps	3,226			4,608
Total current liabilities	30,975			29,727
Long-term debt	1,342,724			1,410,382
Deferred income taxes	2,500			1,054
Other long-term liabilities	5,002			5,494
Total liabilities	1,381,201			1,446,657
Commitments and contingencies (Note 16)
Partners’ capital:
Common units, 65,606,655 and 59,796,514 issued, respectively	516,208			538,197
General partner units, 2% interest with 1,326,965 and 1,209,562 equivalent units issued and outstanding, respectively	12,027			17,151
Accumulated other comprehensive loss	(4,170		)	(5,558		)
Treasury units, 86,795 and 74,888 common units, respectively	(1,892		)	(1,794		)
Total partners’ capital	522,173			547,996
Total liabilities and partners’ capital	$	1,903,374		$	1,994,653

The accompanying notes are an integral part of these consolidated financial statements.

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ARCHROCK PARTNERS, L.P.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per unit amounts)



	Years Ended December 31,
	2016			2015			2014
Revenue	562,360			656,808			581,036

Costs and expenses:
Cost of sales (excluding depreciation and amortization expense) — affiliates	209,411			258,492			238,038
Depreciation and amortization	153,741			155,786			128,196
Long-lived asset impairment	46,258			38,987			12,810
Restructuring charges	7,309			—			702
Goodwill impairment	—			127,757			—
Selling, general and administrative — affiliates	79,717			85,586			80,521
Interest expense	77,863			74,581			57,811
Other income, net	(2,594		)	(1,391		)	(74		)
Total costs and expenses	571,705			739,798			518,004
Income (loss) before income taxes	(9,345		)	(82,990		)	63,032
Provision for income taxes	1,412			1,035			1,313
Net income (loss)	$	(10,757	)	$	(84,025	)	$	61,719

General partner interest in net income (loss)	$	(213	)	$	15,832		$	13,240
Common units interest in net income (loss)	$	(10,544	)	$	(99,857	)	$	48,479

Weighted average common units outstanding used in income (loss) per common unit:
Basic	60,450			58,539			54,107
Diluted	60,450			58,539			54,109

Income (loss) per common unit:
Basic	$	(0.18	)	$	(1.71	)	$	0.89
Diluted	$	(0.18	)	$	(1.71	)	$	0.89

Distributions declared and paid per limited partner unit in respective periods	$	1.4275		$	2.2600		$	2.1650

The accompanying notes are an integral part of these consolidated financial statements.

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ARCHROCK PARTNERS, L.P.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands)



	Years Ended December 31,
	2016			2015			2014
Net income (loss)	$	(10,757	)	$	(84,025	)	$	61,719
Other comprehensive income (loss):
Interest rate swap gain (loss), net of reclassifications to earnings	1,388			(4,705		)	(4,752		)
Amortization of terminated interest rate swaps	—			2,585			3,667
Total other comprehensive income (loss)	1,388			(2,120		)	(1,085		)
Comprehensive income (loss)	$	(9,369	)	$	(86,145	)	$	60,634

The accompanying notes are an integral part of these consolidated financial statements.

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ARCHROCK PARTNERS, L.P.

CONSOLIDATED STATEMENTS OF PARTNERS’ CAPITAL

(In thousands, except for unit amounts)



														Accumulated Other Comprehensive Loss
	Partners’ Capital
	Common Units				General Partner Units				Treasury Units
	$			Units	$			Units	$			Units					Total
Beginning balance, January 1, 2014	$	578,493		49,465,528	$	16,780		1,003,227	$	(1,165	)	(50,917	)	$	(2,353	)	$	591,755
Issuance of common units for vesting of phantom units				48,494													—
Treasury units purchased									(312		)	(10,748	)				(312		)
Issuance of common units	169,471			6,210,000													169,471
Proceeds from sale of general partner units to Archrock					3,573			125,994									3,573
Contribution of capital, net	7,960				73												8,033
Excess of purchase price of equipment over Archrock’s cost of equipment	(19,725		)		(1,110		)										(20,835		)
Cash distributions	(117,331		)		(13,014		)										(130,345		)
Unit-based compensation expense	1,367																1,367
Comprehensive income (loss)	48,479				13,240									(1,085		)	60,634
Balance, December 31, 2014	$	668,714		55,724,022	$	19,542		1,129,221	$	(1,477	)	(61,665	)	$	(3,438	)	$	683,341
Issuance of common units for vesting of phantom units				59,580													—
Treasury units purchased									(317		)	(13,223	)				(317		)
Acquisition of a portion of Archrock’s contract operations business	107,710			3,963,138	2,198			80,341									109,908
Issuance of common units	1,164			49,774													1,164
Contribution (distribution) of capital, net	2,040				(422		)										1,618
Excess of purchase price of equipment over Archrock’s cost of equipment	(11,996		)		(646		)										(12,642		)
Cash distributions	(130,637		)		(19,353		)										(149,990		)
Unit-based compensation expense	1,059																1,059
Comprehensive income (loss)	(99,857		)		15,832									(2,120		)	(86,145		)
Balance, December 31, 2015	$	538,197		59,796,514	$	17,151		1,209,562	$	(1,794	)	(74,888	)	$	(5,558	)	$	547,996
Issuance of common units for vesting of phantom units				70,560													—
Treasury units purchased									(98		)	(11,907	)				(98		)
March 2016 Acquisition	1,799			257,000	37			5,205									1,836
Acquisition of a portion of Archrock’s contract operations business	66,364			5,482,581	1,344			111,040									67,708
Issuance of general partner units					8			1,158									8
Contribution (distribution) of capital, net	4,924				184												5,108
Cash distributions	(85,736		)		(6,484		)										(92,220		)
Unit-based compensation expense	1,204																1,204
Comprehensive income (loss)	(10,544		)		(213		)							1,388			(9,369		)
Balance, December 31, 2016	$	516,208		65,606,655	$	12,027		1,326,965	$	(1,892	)	(86,795	)	$	(4,170	)	$	522,173

The accompanying notes are an integral part of these consolidated financial statements.

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ARCHROCK PARTNERS, L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)



	Years Ended December 31,
	2016			2015			2014
Cash flows from operating activities:
Net income (loss)	$	(10,757	)	$	(84,025	)	$	61,719
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	153,741			155,786			128,196
Long-lived asset impairment	46,258			38,987			12,810
Goodwill impairment	—			127,757			—
Amortization of deferred financing costs	4,492			3,770			2,973
Amortization of debt discount	1,245			1,170			1,042
Amortization of terminated interest rate swaps	—			2,585			3,667
Interest rate swaps	1,590			603			397
Unit-based compensation expense	1,203			1,059			1,376
Provision for doubtful accounts	2,672			2,255			1,060
Loss on non-cash consideration in March 2016 Acquisition	635			—			—
Gain on sale of property, plant and equipment	(3,585		)	(1,747		)	(2,466		)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable, trade	12,537			(7,986		)	(27,871		)
Other assets and liabilities	2,998			952			2,861
Net cash provided by operating activities	213,029			241,166			185,764
Cash flows from investing activities:
Capital expenditures	(62,345		)	(229,202		)	(303,952		)
Payments for business acquisitions	(13,779		)	—			(483,012		)
Proceeds from sale of property, plant and equipment	28,858			13,593			6,331
Decrease in amounts due from affiliates, net	—			2,322			8,226
Net cash used in investing activities	(47,266		)	(213,287		)	(772,407		)
Cash flows from financing activities:
Proceeds from borrowings of long-term debt	257,500			430,500			927,798
Repayments of long-term debt	(328,500		)	(310,000		)	(386,500		)
Distributions to unitholders	(92,220		)	(149,990		)	(130,345		)
Net proceeds from issuance of common units	—			1,164			169,471
Net proceeds from sale of general partner units	45			—			3,573
Payments for debt issuance costs	(1,719		)	(1,311		)	(6,986		)
Payments for settlement of interest rate swaps that include financing elements	(3,058		)	(3,728		)	(3,793		)
Purchases of treasury units	(98		)	(317		)	(312		)
Capital contribution from limited partners and general partner	—			—			13,850
Increase in amounts due to affiliates, net	2,032			5,980			—
Net cash provided by (used in) financing activities	(166,018		)	(27,702		)	586,756
Net increase (decrease) in cash and cash equivalents	(255		)	177			113
Cash and cash equivalents at beginning of period	472			295			182
Cash and cash equivalents at end of period	$	217		$	472		$	295
Supplemental disclosure of cash flow information:
Cash paid for interest	$	73,738		$	69,280		$	47,446
Income taxes paid (refunded), net	$	(71	)	$	1,124		$	779
Supplemental disclosure of non-cash transactions:
Non-cash capital contribution from limited and general partner	$	1,163		$	9,977		$	6,153
Contract operations equipment acquired/exchanged, net	$	70,310		$	99,560		$	(11,970	)
Common units issued in March 2016 Acquisition	$	1,799		$	—		$	—
Non-cash consideration in March 2016 Acquisition	$	3,165		$	—		$	—
Accrued capital expenditures	$	2,934		$	2,110		$	—
Intangible assets allocated in contract operations acquisitions	$	1,147		$	1,055		$	—
Non-cash capital contribution (distribution) due to the contract operations acquisitions	$	(17,292	)	$	7,608		$	—
Common units issued in contract operations acquisitions	$	85,112		$	100,267		$	—
General partner units issued in contract operations acquisitions	$	1,687		$	2,033		$	—

The accompanying notes are an integral part of these consolidated financial statements.

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ARCHROCK PARTNERS, L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Organization and Summary of Significant Accounting Policies

Organization

Archrock Partners, L.P., together with its subsidiaries (“we”, “our”, “us” or the “Partnership”), is a publicly held Delaware limited partnership formed in June 2006 to provide natural gas contract operations services to customers throughout the United States of America (“U.S.”). As of December 31, 2016, public unitholders held a 55% ownership interest in us and Archrock, Inc. (individually, and together with its wholly-owned subsidiaries, “Archrock”) owned our remaining equity interests, including the general partner interests and all of the incentive distribution rights.

Archrock General Partner, L.P. is our general partner and an indirect wholly-owned subsidiary of Archrock. As Archrock General Partner, L.P. is a limited partnership, its general partner, Archrock GP LLC, conducts our business and operations, and the board of directors and officers of Archrock GP LLC, which we refer to herein as our board of directors and our officers, make decisions on our behalf.

Nature of Operations

Natural gas compression is a mechanical process whereby the pressure of a volume of natural gas is increased to a desired higher pressure for transportation from one point to another, and is essential to the production and transportation of natural gas. Compression is typically required several times during the natural gas production and transportation cycle, including: (1) at the wellhead; (2) throughout gathering and distribution systems; (3) into and out of processing and storage facilities; and (4) along intrastate and interstate pipelines.

Principles of Consolidation

The accompanying consolidated financial statements include us and our subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates in the Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. (“GAAP”) requires management to make estimates and assumptions that affect the reported amount of assets, liabilities, revenue and expenses, as well as the disclosures of contingent assets and liabilities. Because of the inherent uncertainties in this process, actual future results could differ from those expected at the reporting date. Management believes that the estimates and assumptions used are reasonable.

Cash and Cash Equivalents

We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.

Revenue Recognition

Contract operations revenue is recognized when earned, which generally occurs monthly when service is provided under our customer contracts.

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Concentrations of Credit Risk

Financial instruments that potentially subject us to concentrations of credit risk consist of cash and cash equivalents and trade accounts receivable. We believe the credit risk in cash investments we have with financial institutions is minimal. Trade accounts receivable are due from companies of varying size engaged principally in oil and natural gas activities. We review the financial condition of customers prior to extending credit and generally do not obtain collateral for trade receivables. Payment terms are on a short-term basis and in accordance with industry practice. We consider this credit risk to be limited due to these companies’ financial resources, the nature of services we provide and the terms of our contract operations customer service agreements.

During the year ended December 31, 2016 and 2015, Williams Partners (formerly known as “Access”) accounted for approximately 17% and 16% of our revenue, respectively. During the year ended December 31, 2014, Access accounted for approximately 12% of our revenue. Access merged with Williams Partners, L.P. (“Williams Partners”), a publicly traded limited partnership controlled by the Williams Companies, Inc. (“Williams Parent”), in February 2015 and, on an as-combined basis, Access and Williams Partners would have accounted for approximately 15% of our consolidated revenue during the year ended December 31, 2014. Additionally, during the years ended December 31, 2016 and December 31, 2015, Anadarko Petroleum Corporation (“Anadarko”) accounted for approximately 10% and 10%, respectively, of our consolidated revenue. No other single customer accounted for more than 10% of our consolidated revenue during the years ended December 31, 2016, December 31, 2015, and December 31, 2014. As of December 31, 2016, trade receivables outstanding from Williams Partners and Anadarko were approximately 20% and 15%, respectively, of our total trade accounts receivable balance. As of December 31, 2015, trade receivables outstanding from Williams Partners and Anadarko were approximately 17%, and 11%, respectively, of our total trade accounts receivable balance.

We maintain allowances for doubtful accounts for estimated losses resulting from our customers’ inability to make required payments. The determination of the collectability of amounts due from our customers requires us to use estimates and make judgments regarding future events and trends, including monitoring our customers’ payment history and current creditworthiness to determine that collectability is reasonably assured, as well as consideration of the overall business climate in which our customers operate. Inherently, these uncertainties require us to make judgments and estimates regarding our customers’ ability to pay amounts due to us in order to determine the appropriate amount of valuation allowances required for doubtful accounts. We review the adequacy of our allowance for doubtful accounts quarterly. We determine the allowance needed based on historical write-off experience and by evaluating significant balances aged greater than 90 days individually for collectability. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. During the years ended December 31, 2016, 2015 and 2014, we recorded bad debt expense of $2.7 million, $2.3 million, and $1.1 million, respectively.

Property, Plant and Equipment

Property, plant and equipment are recorded at cost and depreciated using the straight-line method over their estimated useful lives. For compression equipment, depreciation begins with the first compression service. The estimated useful lives for compression equipment are 15 to 30 years. Maintenance and repairs are expensed as incurred. Major improvements that extend the useful life of compressor units are capitalized and depreciated over the estimated useful life of up to 7 years. Depreciation expense during the years ended December 31, 2016, 2015 and 2014 was $138 million, $141.2 million and $119.0 million, respectively. When property, plant and equipment is sold, retired or otherwise disposed of, the gain or loss is recorded in other (income) expense, net.

Long-Lived Assets

Goodwill

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If a two-step process goodwill impairment test is elected or required, the first step is to compare the implied fair value of our reporting unit with its carrying value (including the goodwill). If the implied fair value of the reporting unit is higher than the carrying value, no impairment is deemed to exist and no further testing was required. If, however, the implied fair value of the reporting unit is below the recorded carrying value, then a second step must be performed to determine the goodwill impairment required, if any. We calculate the implied fair value of the reporting unit goodwill by allocating the estimated fair value of the reporting unit to all of the assets and liabilities of the reporting unit as if the reporting unit had been acquired in a business combination. If the carrying value of the reporting unit’s goodwill exceeds the implied fair value of the goodwill, we recognize an impairment loss for that excess amount.

Due To/From Affiliates, Net

We have receivables and payables with Archrock. A valid right of offset exists related to the receivables and payables with our affiliates and as a result, we present such amounts on a net basis in our consolidated balance sheets.

The transactions reflected in due to/from affiliates, net, primarily consist of centralized cash management activities between us and Archrock. Because these balances are treated as short-term borrowings between us and Archrock, serve as a financing and cash management tool to meet our short-term operating needs, are large, turn over quickly and are payable on demand, we present borrowings and repayments with our affiliates on a net basis within the consolidated statements of cash flows. Net receivables from our affiliates are considered advances and changes are presented as investing activities in the consolidated statements of cash flows. Net payables due to our affiliates are considered borrowings and changes are presented as financing activities in the consolidated statements of cash flows.

Income Taxes

As a partnership, all income, gains, losses, expenses, deductions and tax credits generated by us generally flow through to our unitholders. However, some states impose an entity-level income tax on partnerships, including us. We account for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date.

We record uncertain tax positions in accordance with the accounting standard on income taxes under a two-step process whereby (1) we determine whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, we recognize the largest amount of tax benefit that is greater than 50 percent likely to be realized upon ultimate settlement with the related tax authority.

Segment Reporting

Accounting Standards Codification Topic 280, “Segment Reporting,” establishes standards for entities to report information about the operating segments and geographic areas in which they operate. We consider and report all of our operations as one segment and operate solely within the U.S.

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Comprehensive Income (Loss)

Components of comprehensive income (loss) are net income (loss) and all changes in equity during a period except those resulting from transactions with our limited partners or general partner. Our accumulated other comprehensive income (loss) consists only of derivative financial instruments. Changes in accumulated other comprehensive income (loss) represent changes in the fair value of derivative financial instruments that are designated as cash flow hedges to the extent the hedge is effective and amortization of terminated interest rate swaps. See Note 11 (“Accounting for Derivatives”) for additional disclosures related to comprehensive income (loss).

Financial Instruments

Our financial instruments consist of cash, trade receivables, interest rate swaps and debt. At December 31, 2016 and 2015, the estimated fair values of these financial instruments approximated their carrying amounts as reflected in our consolidated balance sheets. The fair value of our fixed rate debt was estimated based on quoted market yields in inactive markets, which are Level 2 inputs. The fair value of our floating rate debt was estimated using a discounted cash flow analysis based on interest rates offered on loans with similar terms to borrowers of similar credit quality, which are Level 3 inputs. See Note 12 (“Fair Value Measurements”) for additional information regarding the fair value hierarchy.

The following table summarizes the carrying amount and fair value of our debt as of December 31, 2016 and 2015 (in thousands):



	December 31, 2016				December 31, 2015
	Carrying Amount (1)		Fair Value		Carrying Amount (1)		Fair Value
Fixed rate debt	$	683,577	$	686,000	$	680,484	$	524,000
Floating rate debt	659,147		660,000		729,898		731,000
Total debt	$	1,342,724	$	1,346,000	$	1,410,382	$	1,255,000


⁽¹⁾	Carrying amounts are shown net of unamortized debt discounts and unamortized deferred financing costs. See Note 8 (“Long-Term Debt”) for further details.

GAAP requires that all derivative instruments (including certain derivative instruments embedded in other contracts) be recognized in the balance sheet at fair value and that changes in such fair values be recognized in income (loss) unless specific hedging criteria are met. Changes in the values of derivatives that meet these hedging criteria will ultimately offset related income effects of the hedged item pending recognition in income.

Hedging and Use of Derivative Instruments

We use derivative financial instruments to minimize the risks and/or costs associated with financial activities by managing our exposure to interest rate fluctuations on a portion of our debt obligations. We do not use derivative financial instruments for trading or other speculative purposes. We record interest rate swaps on the balance sheet as either derivative assets or derivative liabilities measured at their fair value. The fair value of our derivatives is estimated using a combination of the market and income approach based on forward London Interbank Offered Rate (“LIBOR”) curves. Changes in the fair value of the swaps designated as cash flow hedges are deferred in accumulated other comprehensive income (loss) to the extent the contracts are effective as hedges until settlement of the underlying hedged transaction. To qualify for hedge accounting treatment, we must formally document, designate and assess the effectiveness of the transactions. If the necessary correlation ceases to exist or if the anticipated transaction becomes improbable, we would discontinue hedge accounting and apply mark-to-market accounting. Amounts paid or received from interest rate swap agreements are charged or credited to interest expense and matched with the cash flows and interest expense of the debt being hedged, resulting in an adjustment to the effective interest rate.

Income (Loss) Per Common Unit

Income (loss) per common unit is computed using the two-class method. Under the two-class method, basic income (loss) per common unit is determined by dividing net income (loss) allocated to the common units after deducting the amounts allocated to our general partner (including distributions to our general partner on its incentive distribution rights) and participating securities, by the weighted average number of outstanding common units (also referred to as limited partner units) during the period. Participating securities include unvested phantom units with nonforfeitable tandem distribution equivalent rights to receive cash distributions in the quarter in which distributions are paid on common units. During periods of net loss, no effect is given to participating securities because they do not have a contractual obligation to participate in our losses.

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When computing income per common unit in periods when distributions are greater than income (loss), the amount of the actual incentive distribution rights, if any, is deducted from net income (loss) and allocated to our general partner for the corresponding period. The remaining amount of net income (loss), after deducting distributions to participating securities, is allocated between the general partner and common units based on how our partnership agreement allocates net losses.

When computing income per common unit in periods when income is greater than distributions, income is allocated to the general partner, participating securities and common units based on how our partnership agreement would allocate income if the full amount of income for the period had been distributed. This allocation of net income does not impact our total net income, consolidated results of operations or total cash distributions (including actual incentive distribution rights); however, it may result in our general partner being allocated additional incentive distributions for purposes of our income per unit calculation, which could reduce net income per common unit. However, as required by our partnership agreement, we determine cash distributions based on available cash and determine the actual incentive distributions allocable to our general partner based on actual distributions.

The following table reconciles net income (loss) used in the calculation of basic and diluted income (loss) per common unit (in thousands):



	Years Ended December 31,
	2016			2015			2014
Net income (loss)	$	(10,757	)	$	(84,025	)	$	61,719
Less: General partner incentive distribution rights	—			(17,853		)	(12,258		)
Less: General partner 2% ownership interest	213			2,021			(982		)
Common units interest in net income (loss)	(10,544		)	(99,857		)	48,479
Less: Net loss attributable to participating securities	(226		)	(184		)	(198		)
Net income (loss) used in basic and diluted income per common unit	$	(10,770	)	$	(100,041	)	$	48,281

The following table shows the potential common units that were included in computing diluted income (loss) per common unit (in thousands):



	Years Ended December 31,
	2016		2015		2014
Weighted average common units outstanding including participating securities	60,628		58,610		54,187
Less: Weighted average participating securities outstanding	(178	)	(71	)	(80	)
Weighted average common units outstanding — used in basic income (loss) per common unit	60,450		58,539		54,107
Net dilutive potential common units issuable:
Phantom units	—		—		2
Weighted average common units and dilutive potential common units — used in diluted income (loss) per common unit	60,450		58,539		54,109

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2. Recent Accounting Developments

Accounting Standards Updates Implemented

In April 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2015-03 (“Update 2015-03”) that addresses the presentation of debt issuance costs. Update 2015-03 requires an entity to present such costs in the balance sheet as a direct deduction from the carrying amount of the related debt liability rather than as an asset. Amortization of the costs will continue to be reported as interest expense. In August 2015, the FASB issued Accounting Standards Update 2015-15 (“Update 2015-15”) which clarifies that the guidance in Update 2015-03 does not apply to line-of-credit arrangements. Per Update 2015-15, line-of-credit arrangements will continue to defer and present debt issuance costs as an asset and subsequently amortize the deferred debt costs ratably over the term of the arrangement. Upon transition, an entity is required to comply with the applicable disclosures for a change in an accounting principle. Update 2015-03 was effective for reporting periods beginning after December 15, 2015 on a retrospective basis. We adopted Update 2015-03 in the first quarter of 2016, which resulted in the reclassification of an $11.6 million asset previously presented in intangibles and other assets, net on the condensed consolidated balance sheet to a contra-liability presented in long-term debt on the condensed consolidated balance sheet as of December 31, 2015. See Note 8 (“Long-Term Debt”) for further details.

Accounting Standards Updates Not Yet Implemented

In August 2016, the FASB issued Accounting Standards Update No. 2016-15 (“Update 2016-15”) which addresses diversity in practice, and simplifies several elements of cash flow classification including how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Update 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Update 2016-15 will require adoption on a retrospective basis unless it is impracticable to apply, in which case it would be required to apply the amendments prospectively as of the earliest date practicable. Early adoption is permitted. We are currently evaluating the impact of Update 2016-15 on our consolidated financial statements.

In June 2016, the FASB issued Accounting Standards Update No. 2016-13 (“Update 2016-13”) that changes the impairment model for most financial assets and certain other instruments, including trade and other receivables, held-to-maturity debt securities and loans, and requires entities to use a new forward-looking expected loss model that will result in the earlier recognition of allowance for losses. Update 2016-13 is effective for fiscal years beginning after December 15, 2019, and early adoption is permitted. Entities will apply Update 2016-13 provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. We are currently evaluating the impact of Update 2016-13 on our consolidated financial statements.

In March 2016, the FASB issued Accounting Standards Update No. 2016-09 (“Update 2016-09”) that simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either debt or equity liabilities, and classification on the statement of cash flows. For public entities, Update 2016-09 is effective for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of Update 2016-09 on our consolidated financial statements.

In February 2016, the FASB issued Accounting Standards Update No. 2016-02 (“Update 2016-02”) that establishes a right-of-use model that requires a lessee to record a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. Under the new guidance, lessor accounting is largely unchanged. Update 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. We are currently evaluating the impact of Update 2016-02 on our consolidated financial statements.

In May 2014, the FASB issued Accounting Standards Update No. 2014-09 (“Update 2014-09”) that outlines a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and supersedes the most current revenue recognition guidance, including industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Update 2014-09 also requires disclosures enabling users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Update 2014-09 will be effective for reporting periods beginning after December 15, 2017, including interim periods within the reporting period. Early adoption is permitted for reporting periods beginning after December 15, 2016. Companies may use either a full retrospective or a modified retrospective approach. In March 2016, the FASB issued Accounting Standards Update No. 2016-08 (“Update 2016-08”), which clarifies the guidance in Update 2014-09 by providing guidance on recording revenue on a gross basis versus a net basis based on the determination of whether an entity is a principal or an agent

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when another party is involved in providing goods or services to a customer. In April 2016, the FASB issued Accounting Standards Update 2016-10 (“Update 2016-10”), clarifying the implementation guidance on identifying performance obligations and the licensing implementation guidance, while retaining the related principles for those areas. Also in April 2016, the FASB issued Accounting Standards Update No. 2016-11 (“Update 2016-11”), rescinding certain paragraphs pertaining to accounting for shipping and handling fees and costs and accounting for consideration given by a vendor to a customer. In May 2016, the FASB issued Accounting Standards Update No. 2016-12 (“Update 2016-12”), clarifying implementation guidance on a few narrow areas and adds some practical expedients to the guidance. Each of these subsequent updates has the same effective date as Update 2014-09.

We are in the process of assessing our customer contracts, identifying contractual provisions that may result in a change in the timing or the amount of revenue recognized in comparison with current guidance, as well as assessing the enhanced disclosure requirements of the new guidance. Under current guidance we generally recognize revenue when service is provided or products are delivered to the customer. Under the proposed requirements, the nature of some of our contractual provisions, may result in a change in the timing of recognition and the need to estimate revenue in some cases. In addition, we are also evaluating expenses that will meet the criteria for capitalization and amortization under the updated guidance. We are still determining the materiality of the impact of these changes on our consolidated financial statements. The impacts noted are not all inclusive of the impacts that adoption of the updates will have on our consolidated financial statements but reflect our current expectations. We anticipate adoption of the updated guidance effective January 1, 2018.

3. Business Acquisitions

November 2016 Contract Operations Acquisition

On November 19, 2016, we acquired from Archrock contract operations customer service agreements with 63 customers and a fleet of 262 compressor units used to provide compression services under those agreements, comprising approximately 147,000 horsepower, or approximately 4% (of then available horsepower) of the combined U.S. contract operations business of Archrock and us. At the acquisition date, the acquired fleet assets had a net book value of $66.6 million, net of accumulated depreciation of $55.6 million. Total consideration for the transaction was $85 million, excluding transaction costs. In connection with the acquisition, we issued approximately 5.5 million common units to Archrock and approximately 111,000 general partner units to our general partner. During the year ended December 31, 2016, we incurred transaction costs of approximately $0.4 million related to this acquisition, which is reflected in other (income) loss, net, in our consolidated statement of operations. This acquisition is referred to as the “November 2016 Contract Operations Acquisition.”

In connection with this acquisition, we were allocated $1.1 million finite life intangible assets associated with customer relationships of Archrock’s contract operations segment. The amounts allocated were based on the ratio of fair value of the net assets transferred to us to the total fair value of Archrock’s contract operations segment. These intangible assets are being amortized through 2024, based on the present value of income expected to be realized from these intangible assets.

Because Archrock and we are considered entities under common control, GAAP requires that we record the assets acquired and liabilities assumed from Archrock in connection with the November 2016 Contract Operations Acquisition using Archrock’s historical cost basis in the assets and liabilities. The difference between the historical cost basis of the assets acquired and liabilities assumed and the purchase price is treated as either a capital contribution or distribution. As a result, we recorded a capital distribution of $17.3 million for the November 2016 Contract Operations Acquisition during the year ended December 31, 2016.

An acquisition of a business from an entity under common control is generally accounted for under GAAP by the acquirer with retroactive application as if the acquisition date was the beginning of the earliest period included in the financial statements. Retroactive effect to the November 2016 Contract Operations Acquisition was impracticable because such retroactive application would have required significant assumptions in a prior period that cannot be substantiated. Accordingly, our financial statements include the assets acquired, liabilities assumed, revenue and direct operating expenses associated with the acquisition beginning on the date of such acquisition. However, the preparation of pro forma financial information allows for certain assumptions that do not meet the standards of financial statements prepared in accordance with GAAP.

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March 2016 Acquisition

We accounted for the March 2016 Acquisition using the acquisition method, which requires, among other things, assets acquired to be recorded at their fair value on the acquisition date. The following table summarizes the purchase price allocation based on estimated fair values of the acquired assets as of the acquisition date (in thousands):



	Fair Value
Property, plant and equipment	$	14,929
Intangible assets	3,839
Purchase price	$	18,768

Property, Plant and Equipment and Intangible Assets Acquired

Property, plant and equipment is comprised of compressor units that will be depreciated on a straight-line basis over an estimated average remaining useful life of 15 years.

The amount of finite life intangible assets, and their associated average useful lives, was determined based on the period which the assets are expected to contribute directly or indirectly to our future cash flows, and consisted of the following:



	Amount (in thousands)		Average Useful Life
Contract based	$	3,839	2.3 years

The results of operations attributable to the assets acquired in the March 2016 Acquisition have been included in our consolidated financial statements since the date of acquisition.

Pro forma financial information is not presented for the March 2016 Acquisition as it is immaterial to our reported results.

April 2015 Contract Operations Acquisition

On April 17, 2015, we acquired from Archrock contract operations customer service agreements with 60 customers and a fleet of 238 compressor units used to provide compression services under those agreements, comprising approximately 148,000 horsepower, or 3% (of then available horsepower) of the combined contract operations business of Archrock and us . The acquired assets also included 179 compressor units, comprising approximately 66,000 horsepower, previously leased from Archrock to us. At the acquisition date, the acquired fleet assets had a net book value of $108.8 million, net of accumulated depreciation of $59.9 million. Total consideration for the transaction was approximately $102.3 million, excluding transaction costs. In connection with this acquisition, we issued approximately 4.0 million common units to Archrock and approximately 80,000 general partner units to our general partner. Based on the terms of the contribution, conveyance and assumption agreement, the common units and general partner units, including incentive distribution rights, we issued for this acquisition were not entitled to receive a cash distribution relating to the quarter ended March 31, 2015. This acquisition is referred to as the “April 2015 Contract Operations Acquisition”.

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Because Archrock and we are considered entities under common control, GAAP requires that we record the assets acquired and liabilities assumed from Archrock in connection with the April 2015 Contract Operations Acquisition using Archrock’s historical cost basis in the assets and liabilities. The difference between the historical cost basis of the assets acquired and liabilities assumed and the purchase price is treated as either a capital contribution or distribution. As a result, we recorded a capital contribution of $7.6 million for the April 2015 Contract Operations Acquisition during the year ended December 31, 2015.

An acquisition of a business from an entity under common control is generally accounted for under GAAP by the acquirer with retroactive application as if the acquisition date was the beginning of the earliest period included in the financial statements. Retroactive effect to the April 2015 Contract Operations Acquisition was impracticable because such retroactive application would have required significant assumptions in a prior period that cannot be substantiated. Accordingly, our financial statements include the assets acquired, liabilities assumed, revenue and direct operating expenses associated with the acquisition beginning on the date of such acquisition. However, the preparation of pro forma financial information allows for certain assumptions that do not meet the standards of financial statements prepared in accordance with GAAP.

August 2014 MidCon Acquisition

On August 8, 2014, we completed an acquisition of natural gas compression assets, including a fleet of 162 compressor units, comprising approximately 110,000 horsepower from MidCon Compression, L.L.C. (“MidCon”) for $130.1 million (the “August 2014 MidCon Acquisition”). The purchase price was funded with borrowings under our revolving credit facility. The majority of the horsepower we acquired is utilized under a five-year contract operations services agreement with BHP Billiton Petroleum (“BHP Billiton”), which expires in March 2019, to provide compression services. In connection with the acquisition, the contract operations services agreement with BHP Billiton was assigned to us effective as of the closing. During the year ended December 31, 2014, we incurred transaction costs of approximately $1.0 million related to the August 2014 MidCon Acquisition, which is reflected in other (income) expense, net, in our consolidated statements of operations.

In accordance with the terms of the purchase and sale agreement relating to this acquisition, we directed MidCon to sell a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory to a wholly-owned subsidiary of Archrock that is our indirect parent company for $4.1 million.

We accounted for the August 2014 MidCon Acquisition using the acquisition method, which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the acquisition date. The excess of the consideration transferred over those fair values is recorded as goodwill.

The results of operations attributable to the assets and liabilities acquired in the August 2014 MidCon Acquisition have been included in our consolidated financial statements since the date of acquisition.

April 2014 MidCon Acquisition

On April 10, 2014, we completed an acquisition of natural gas compression assets, including a fleet of 337 compressor units, comprising approximately 444,000 horsepower from MidCon for $352.9 million (the “April 2014 MidCon Acquisition”). The purchase price was funded with the net proceeds from the public sale of 6.2 million common units and a portion of the net proceeds from the issuance of $350.0 million aggregate principal amount of 6% senior notes due October 2022 (the “2014 Notes”). The compressor units were previously used by MidCon to provide compression services to a subsidiary of Access. Effective as of the closing of the acquisition, we and Access entered into a seven-year contract operations services agreement under which we provide compression services to Williams Partners (formerly Access). During the year ended December 31, 2014, we incurred transaction costs of approximately $1.5 million related to the April 2014 MidCon Acquisition, which is reflected in other (income) expense, net, in our consolidated statements of operations.

We accounted for the April 2014 MidCon Acquisition using the acquisition method, which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the acquisition date.

The results of operations attributable to the assets and liabilities acquired in the April 2014 MidCon Acquisition have been included in our consolidated financial statements since the date of acquisition.

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Unaudited Pro Forma Financial Information

The unaudited pro forma financial information for the years ended December 31, 2016, 2015 and 2014 has been included to give effect to the additional assets acquired in the November 2016 Acquisition, the April 2015 Contract Operations Acquisition, the August 2014 MidCon Acquisition, and the April 2014 MidCon Acquisition. The November 2016 Contract Operations Acquisition is presented in the unaudited pro forma information as though this transaction occurred January 1, 2015. The April 2015 Contract Operations Acquisition is presented in the unaudited pro forma financial information as though this transaction occurred as of January 1, 2014. The August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition are presented in the unaudited pro forma financial information as though these transactions occurred as of January 1, 2013. The unaudited pro forma financial information reflects the following transactions:

As related to the November 2016 Acquisition:


•	our acquisition in November 2016 of certain contract operations customer service agreements, compression equipment and identifiable intangible assets from Archrock; and


•	our issuance of approximately 5.5 million common units to Archrock and approximately 111,000 general partner units to our general partner.

As related to the April 2015 Contract Operations Acquisition:


•	our acquisition in April 2015 of certain contract operations customer service agreements, compression equipment and identifiable intangible assets from Archrock; and


•	our issuance of approximately 4.0 million common units to Archrock and approximately 80,000 general partner units to our general partner.

As related to the August 2014 MidCon Acquisition:


•	our acquisition in August 2014 of natural gas compression assets and identifiable intangible assets from MidCon; and


•	our borrowings under our revolving credit facility to pay $130.1 million to MidCon for the August 2014 MidCon Acquisition.

As related to the April 2014 MidCon Acquisition:


•	our acquisition in April 2014 of natural gas compression assets and identifiable intangible assets from MidCon;


•	our issuance of 6.2 million common units to the public and approximately 126,000 general partner units to our general partner;


•	our issuance of $350.0 million aggregate principal amount of the 2014 Notes; and


•	our use of proceeds from the issuance of common units, general partner units and the 2014 Notes to pay $352.9 million to MidCon for the April 2014 MidCon Acquisition and to pay down $157.5 million on our revolving credit facility.

The unaudited pro forma financial information below is presented for informational purposes only and is not necessarily indicative of our results of operations that would have occurred had each transaction been consummated at the beginning of the period presented, nor is it necessarily indicative of future results. The unaudited pro forma financial information below was derived by adjusting our historical financial statements.

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The following table shows unaudited pro forma financial information for the years ended December 31, 2016, 2015 and 2014 (in thousands, except per unit amounts):



	Years Ended December 31,
	2016		2015			2014
Revenue	$	589,494	$	699,687		$	645,226
Net income (loss)	$	552	$	(72,438	)	$	68,153
Basic income (loss) per common unit	$	—	$	(1.39	)	$	0.90
Diluted income (loss) per common unit	$	—	$	(1.39	)	$	0.90

Pro forma net income (loss) per common unit is determined by dividing the pro forma net income (loss) that would have been allocated to our common unitholders by the weighted average number of common units outstanding after the completion of the transactions included in the pro forma financial information. Pursuant to our partnership agreement, to the extent that the quarterly distributions exceed certain targets, our general partner is entitled to receive certain incentive distributions that will result in more net income (loss) proportionately being allocated to our general partner than to our common unitholders. The pro forma net income per limited partner unit calculations include pro forma incentive distributions to our general partner and a reduction of net income allocable to our limited partners of $1.9 million and $1.2 million for the years ended December 31, 2015 and 2014, respectively, which reflects the amount of additional incentive distributions that would have occurred during the period. No pro forma incentive distributions to our general partner nor a reduction to net income (loss) allocable to our limited partners was included in our pro forma net income (loss) per limited partner unit calculations for the year ended December 31, 2016, as there were no incentive distributions issued related to the 2016 annual period.

4. Related Party Transactions

We are a party to an omnibus agreement with Archrock, our general partner and others (as amended and/or restated, the “Omnibus Agreement”), which includes, among other things:


•	certain agreements not to compete between Archrock and its affiliates, on the one hand, and us and our affiliates, on the other hand;


•	Archrock’s obligation to provide all operational staff, corporate staff and support services reasonably necessary to operate our business and our obligation to reimburse Archrock for such services;


•	the terms under which we, Archrock, and our respective affiliates may transfer, exchange or lease compression equipment among one another;


•	Archrock’s grant to us of a license to use certain intellectual property, including our logo; and


•	Archrock’s and our obligations to indemnify each other for certain liabilities.

The Omnibus Agreement will terminate upon a change of control of Archrock GP LLC, our general partner or us, and certain provisions of the Omnibus Agreement will terminate upon a change of control of Archrock. Provisions in the Omnibus Agreement that provided caps on our obligation to reimburse Archrock for operating and selling, general and administrative (“SG&A”) expenses were in effect through December 31, 2014; however, effective January 1, 2015, these provisions of the Omnibus Agreement terminated.

Non-competition

Under the Omnibus Agreement, subject to the provisions described below, Archrock has agreed not to offer or provide compression services in the U.S. to our contract operations services customers that are not also contract operations services customers of Archrock. Compression services include natural gas contract compression services, but exclude fabrication of compression equipment, sales of compression equipment or material, parts or equipment that are components of compression equipment, leasing of compression equipment without also providing related compression equipment service, gas processing operations services and operation, maintenance, service, repairs or overhauls of compression equipment owned by third parties. Similarly, we have agreed not to offer or provide compression services to Archrock’s contract operations services customers that are not also our contract operations services customers.

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Some of our customers are also Archrock’s contract operations services customers, which we refer to as overlapping customers. We and Archrock have agreed, subject to the exceptions described below, not to provide contract operations services to an overlapping customer at any site at which the other was providing such services to an overlapping customer on the date of the most recent amendment to the Omnibus Agreement, each being referred to as a “Partnership site” or an “Archrock site.” Pursuant to the Omnibus Agreement, if an overlapping customer requests contract operations services at a Partnership site or an Archrock site, whether in addition to or in replacement of the equipment existing at such site on the date of the most recent amendment to the Omnibus Agreement, we may provide contract operations services if such overlapping customer is a Partnership overlapping customer, and Archrock will be entitled to provide such contract operations services if such overlapping customer is an Archrock overlapping customer. Additionally, any additional contract operations services provided to a Partnership overlapping customer will be provided by us and any additional services provided to an Archrock overlapping customer will be provided by Archrock.

Archrock also has agreed that new customers for contract compression services are for our account unless the new customer is unwilling to contract with us or unwilling to do so under our form of compression services agreement. In that case, Archrock may provide compression services to the new customer. In the event that either we or Archrock enter into a contract to provide compression services to a new customer, either we or Archrock, as applicable, will receive the protection of the applicable non-competition arrangements described above in the same manner as if such new customer had been a compression services customer of either us or Archrock on the date of the Omnibus Agreement.

Indemnification for Environmental and Other Liabilities

Under the Omnibus Agreement, Archrock has agreed to indemnify us, for a three-year period following each applicable asset acquisition from Archrock, against certain potential environmental claims, losses and expenses associated with the ownership and operation of the acquired assets that occur before the acquisition date. Archrock maximum liability for environmental indemnification obligations under the Omnibus Agreement cannot exceed $5.0 million, and Archrock will not have any obligation under the environmental or any other indemnification until our aggregate losses exceed $250,000. Archrock will have no indemnification obligations with respect to environmental claims made as a result of additions to or modifications of environmental laws promulgated after such acquisition date. We have agreed to indemnify Archrock against environmental liabilities occurring on or after the applicable acquisition date related to our assets to the extent Archrock is not required to indemnify us.

Additionally, Archrock will indemnify us for losses attributable to title defects, retained assets and income taxes attributable to pre-closing operations. We will indemnify Archrock for all losses attributable to the post-closing operations of the assets contributed to us, to the extent not subject to Archrock indemnification obligations. For the years ended December 31, 2016, 2015 and 2014, there were no requests for indemnification by either party.

Purchase of New Compression Equipment from Archrock

In connection with the Spin-off, Archrock contributed its fabrication business to Exterran and we entered into a separate supply agreement with Exterran under which we are obligated to purchase our requirements of newly-fabricated compression equipment from Exterran and its affiliates, subject to certain exceptions. For the year ended December 31, 2016, we purchased $32.2 million of newly manufactured compression equipment from Exterran. Prior to the November 2015 amendment and restatement of our Omnibus Agreement, in connection with the Spin-off, we were able to purchase newly-fabricated compression equipment from Archrock or its affiliates at Archrock’s cost to fabricate such equipment plus a fixed margin. During the years ended December 31, 2015 and 2014, we purchased $171.7 million and $233.0 million, respectively, of newly-fabricated compression equipment from Archrock. Transactions between us and Archrock and its affiliates are transactions between entities under common control.

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Under GAAP, transfers of assets and liabilities between entities under common control are to be initially recorded on the books of the receiving entity at the carrying value of the transferor. Any difference between consideration given and the carrying value of the assets or liabilities is treated as a capital distribution or contribution. As a result, the newly-fabricated compression equipment purchased during the years ended December 31, 2015 and 2014 was recorded in our consolidated balance sheets as property, plant and equipment of $159.0 million and $212.2 million, respectively, which represents the carrying value of the Archrock’s affiliates that sold it to us, and as a distribution of equity of $12.7 million and $20.8 million, respectively, which represents the fixed margin we paid above the carrying value in accordance with the Omnibus Agreement. During the years ended December 31, 2015 and 2014, Archrock contributed to us $9.6 million and $6.2 million, respectively, primarily related to the completion of overhauls on compression equipment that was exchanged with us or contributed to us and where overhauls were in progress on the date of exchange or contribution.

Transfer, Exchange or Lease of Compression Equipment with Archrock

During the year ended December 31, 2016, pursuant to the terms of the Omnibus Agreement, we transferred ownership of 462 compressor units, totaling approximately 205,000 horsepower with a net book value of approximately $92.4 million, to Archrock. In exchange, Archrock transferred ownership of 339 compressor units, totaling approximately 154,000 horsepower with a net book value of approximately $96.2 million, to us. During the year ended December 31, 2015, pursuant to the terms of the Omnibus Agreement, we transferred ownership of 349 compressor units, totaling approximately 112,800 horsepower with a net book value of approximately $54.7 million, to Archrock. In exchange, Archrock transferred ownership of 260 compressor units, totaling approximately 99,600 horsepower with a net book value of approximately $46.8 million, to us. During the year ended December 31, 2014, pursuant to the terms of the Omnibus Agreement, we transferred ownership of 443 compressor units, totaling approximately 224,600 horsepower with a net book value of approximately $93.2 million, to Archrock. In exchange, Archrock transferred ownership of 463 compressor units, totaling approximately 165,800 horsepower with a net book value of approximately $81.2 million, to us. During the years ended December 31, 2016, 2015 and 2014, we recorded capital distributions of approximately $3.8 million, $7.9 million and $12 million, respectively, related to the differences in net book value on the exchanged compression equipment. No customer contracts were included in the transfers. Under the terms of the Omnibus Agreement, such transfers must be of equal appraised value, as defined in the Omnibus Agreement, with any difference being settled in cash.

At December 31, 2016, we had equipment on lease to Archrock with an aggregate cost and accumulated depreciation of $4.3 million and $0.7 million, respectively. At December 31, 2015, we had equipment on lease to Archrock with an aggregate cost and accumulated depreciation of $10.1 million and $3.3 million, respectively. During the years ended December 31, 2016, 2015 and 2014, we had revenue of $0.1 million, $0.2 million and $0.3 million, respectively, from Archrock related to the lease of our compression equipment. During the years ended December 31, 2016, 2015 and 2014, we had cost of sales of $0.3 million, $1.7 million and $4.9 million, respectively, with Archrock related to the lease of Archrock’s compression equipment.

Reimbursement of Operating and SG&A Expense

Archrock charges us for costs that are directly attributable to us. Costs that are indirectly attributable to us and Archrock’s other operations are allocated among Archrock’s other operations and us. The allocation methodologies vary based on the nature of the charge and have included, among other things, revenue, headcount and horsepower. We believe that the allocation methodologies used to allocate indirect costs to us are reasonable. Included in our cost of sales during the years ended December 31, 2016, 2015 and 2014 were $4.8 million, $4.1 million and $8.3 million, respectively, of indirect costs incurred by Archrock. Included in our SG&A expense during the years ended December 31, 2016, 2015 and 2014 were $68.8 million, $75.6 million and $72.0 million, respectively, of indirect costs incurred by Archrock.

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Under the Omnibus Agreement, our obligation to reimburse Archrock for any cost of sales that it incurred in the operation of our business and any cash SG&A expense allocated to us was capped (after taking into account any such costs we incurred and paid directly) through December 31, 2014. Cost of sales was capped at $21.75 per operating horsepower per quarter through December 31, 2013 and $22.50 per operating horsepower per quarter from January 1, 2014 through December 31, 2014. SG&A costs were capped at $9.0 million per quarter from June 10, 2011 through March 7, 2012, $10.5 million per quarter from March 8, 2012 through March 31, 2013, $12.5 million per quarter from April 1, 2013 through December 31, 2013, $15.0 million per quarter from January 1, 2014 through April 9, 2014 and $17.7 million per quarter from April 10, 2014 through December 31, 2014. The cost caps provided in the Omnibus Agreement were in effect through December 31, 2014; however, effective January 1, 2015, these provisions of the Omnibus Agreement terminated.

Our cost of sales exceeded the cap provided in the Omnibus Agreement by $2.5 million during the year ended December 31, 2014. Our SG&A expenses exceeded the cap provided in the Omnibus Agreement by $11.4 million during the year ended December 31, 2014. The excess amounts over the caps are included in the consolidated statements of operations as cost of sales or SG&A expense. The cash received for the amounts over the caps has been accounted for as a capital contribution in our consolidated balance sheets and statements of cash flows.

5. Goodwill

Beginning in late 2014 and extending throughout 2015, the energy markets experienced a significant reduction in oil and natural gas prices which has had a significant impact on the financial performance and operating results of many oil and natural gas companies. Such declines accelerated in the fourth quarter of 2015, resulting in higher borrowing costs for companies and a substantial reduction in forecasted capital spending across the energy industry leading to lower projected growth rates over the short-term. Such declines impacted our future cash flow forecasts, our market capitalization, and the market capitalization of peer companies. We identified these conditions as a triggering event, which required us to perform a goodwill impairment test as of December 31, 2015. Accordingly, as of December 31, 2015, we recorded a full impairment of our goodwill in the fourth quarter of 2015 of $127.8 million. During the first quarter of 2016, we finalized the impairment analysis which did not result in an adjustment to the preliminary impairment booked in the fourth quarter of 2015 and reported no goodwill as of December 31, 2016. See Note 1 (“Organization and Summary of Significant Accounting Policies”) for further discussion regarding our goodwill analysis.

For the years ended December 31, 2014, we determined that there was no impairment of goodwill.

For the years ended December 31, 2016 and 2015, there were no additions or acquisitions that resulted in the recognition of goodwill.

The following table presents the change in the carrying value of goodwill for the years ended December 31, 2015 (in thousands):



Goodwill as of January 1, 2015	$	127,757
Goodwill acquired during year	—
Impairment losses	(127,757		)
Goodwill as of December 31, 2015	$	—

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6. Intangible and Other Assets

Intangibles and other assets, net, consisted of the following (in thousands):



	December 31,
	2016		2015
Deferred financing costs, net⁽¹⁾	$	3,238	$	3,911
Intangible assets, net	76,663		87,461
Other	1,058		1,843
Intangibles and other assets, net	$	80,959	$	93,215

⁽¹⁾Represents deferred financing costs, net associated with our revolving credit facility. See Note 8 (“Long-Term Debt”) for further details.

Intangible assets and deferred financing costs consisted of the following (in thousands):



	December 31, 2016					December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Customer related (9-25 year life)	$	56,707	$	(19,284	)	$	55,560	$	(15,797	)
Contract based (5-9 year life)	68,395		(29,155		)	65,766		(18,068		)
Intangible assets	$	125,102	$	(48,439	)	$	121,326	$	(33,865	)

Amortization of intangible assets totaled $15.8 million, $14.6 million and $9.2 million during the years ended December 31, 2016, 2015 and 2014, respectively.

Estimated future intangible amortization expense is as follows (in thousands):



2017	$	15,917
2018	14,908
2019	11,623
2020	8,286
2021	3,541
Thereafter	22,388
Total	$	76,663

7. Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):



	December 31,
	2016		2015
Accrued income and other taxes ⁽¹⁾	$	2,902	$	3,178
Accrued capital expenditures	2,934		2,110
Accrued other liabilities	1,564		1,408
Accrued liabilities	$	7,400	$	6,696

⁽¹⁾Represents accruals for taxes including accruals for ad valorem taxes, sales tax and use tax.

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8. Long-Term Debt

Long-term debt consisted of the following (in thousands):



	December 31,
	2016			2015
Revolving credit facility due May 2018	$	509,500		$	580,500

Term loan facility due May 2018	150,000			150,000
Less: Deferred financing costs, net of amortization	(353		)	(602		)
	149,647			149,398

6% senior notes due April 2021	350,000			350,000
Less: Debt discount, net of amortization	(3,213		)	(3,862		)
Less: Deferred financing costs, net of amortization	(4,366		)	(5,396		)
	342,421			340,742

6% senior notes due October 2022	350,000			350,000
Less: Debt discount, net of amortization	$	(4,076	)	$	(4,673	)
Less: Deferred financing costs, net of amortization	(4,768		)	(5,585		)
	$	341,156		$	339,742

Long-term debt	$	1,342,724		$	1,410,382

Revolving Credit Facility and Term Loan

In November 2010, we amended and restated our senior secured credit agreement (the “Credit Agreement”) to provide for a five-year $550.0 million senior secured credit facility, consisting of a $400.0 million revolving credit facility and a $150.0 million term loan facility. The revolving borrowing capacity under this facility increased to $550.0 million in March 2011 and to $750.0 million in March 2012. In March 2013, we amended our Credit Agreement to reduce the borrowing capacity under our revolving credit facility to $650.0 million and extend the maturity date of the term loan and revolving credit facilities to May 2018. In February 2015, we amended our Credit Agreement which among other things, increased the borrowing capacity under the revolving credit facility to $900.0 million. In May 2016, we further amended our Credit Agreement to, among other things, decrease the borrowing capacity under the revolving credit facility to $825.0 million. Prior to this amendment, we were able to increase the aggregate commitments under the Credit Agreement by up to an additional $50.0 million subject to certain conditions, including the approval of the lenders. As a result of this amendment and subject to certain conditions, including the approval of the lenders, we are able to increase the aggregate commitments under the Credit Agreement by up to an additional $125.0 million. As of December 31, 2016, we had undrawn and available capacity of $315.5 million under our revolving credit facility.

As a result of the May 2016 amendment to our Credit Agreement, we expensed $0.4 million of unamortized deferred financing costs, which is reflected in interest expense in our consolidated statements of operations during the year ended December 31, 2016. During the years ended December 31, 2016 and 2015, we incurred transaction costs of approximately $1.7 million and $1.3 million, respectively, related to these amendments to our Credit Agreement. Unamortized deferred financing costs related to our revolving credit facility were recorded in intangible and other assets, net, and are being amortized to interest expense over the terms of the facilities. Unamortized deferred financing cost related to our term loan were included in long-term debt as a direct deduction from the carrying amount of our term loan debt and are being amortized to interest expense.

The revolving credit and term loan facilities bear interest at a base rate or the London Interbank Offered Rate (“LIBOR”), at our option, plus an applicable margin. Depending on our leverage ratio, the applicable margin for the revolving and term loans varies (i) in the case of LIBOR loans, from 2.0% to 3.0% and (ii) in the case of base rate loans, from 1.0% to 2.0%. The base rate is the highest of the prime rate announced by Wells Fargo Bank, National Association, the Federal Funds Effective Rate plus 0.5% and one-month LIBOR plus 1.0%. At December 31, 2016, all amounts outstanding of these facilities were LIBOR loans and the applicable margin was 3%. The weighted average annual interest rate on the outstanding balance of these facilities at December 31, 2016 and 2015, excluding the effect of interest rate swaps, was 3.7% and 2.8%, respectively.

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The Credit Agreement contains various covenants with which we must comply, including, but not limited to, restrictions on the use of proceeds from borrowings and limitations on our ability to incur additional indebtedness, engage in transactions with affiliates, merge or consolidate, sell assets, make certain investments and acquisitions, make loans, grant liens, repurchase equity and pay dividends and distributions. The Credit Agreement also contains various covenants requiring mandatory prepayments from the net cash proceeds of certain asset transfers. The Credit Agreement also contains various covenants, which have been amended effective March 31, 2016, requiring mandatory prepayments from the net cash proceeds of certain asset transfers. In addition, if as of any date we have cash and cash equivalents (other than proceeds from a debt or equity issuance in the 30 days prior to such date reasonably expected to be used to fund an acquisition permitted under the Credit Agreement) in excess of $50.0 million, then such excess amount will be used to pay down outstanding borrowings of a corresponding amount under the revolving credit facility.

We must maintain various consolidated financial ratios, including a ratio of earnings before interest, taxes, depreciation and amortization (“EBITDA”) (as defined in the Credit Agreement) to Total Interest Expense (as defined in the Credit Agreement) of not less than 2.75 to 1.0, a ratio of Total Debt (as defined in the Credit Agreement) to EBITDA of not greater than 5.95 to 1.0 through the fourth quarter of 2017, 5.75 to 1.0 in the first quarter of 2018 and 5.25 to 1.0 (subject to a temporary increase to 5.5 to 1.0 for any quarter during which an acquisition meeting certain thresholds is completed and for the following two quarters after the acquisition closes) thereafter and a ratio of Senior Secured Debt (as defined in the Credit Agreement) to EBITDA of not greater than 3.50 to 1.0 through the fourth quarter of 2017, 3.75 to 1.0 in the first quarter of 2018 and 4.0 to 1.0 thereafter. A material adverse effect on our assets, liabilities, financial condition, business or operations that, taken as a whole, impacts our ability to perform our obligations under the Credit Agreement, could lead to a default under that agreement. A default under one of our debt agreements would trigger cross-default provisions under our other debt agreements, which would accelerate our obligation to repay our indebtedness under those agreements. As of December 31, 2016, we were in compliance with all financial covenants under the Credit Agreement.

6% Senior Notes Due April 2021

In March 2013, we issued $350.0 million aggregate principal amount of 6% senior notes due April 2021 (the “2013 Notes”). We used the net proceeds of $336.9 million, after original issuance discount and issuance costs, to repay borrowings outstanding under our revolving credit facility. We incurred $7.8 million in transaction costs related to this issuance. Unamortized deferred financing costs were included in long-term debt as a direct deduction from the carrying amount of our 2013 Notes, and are being amortized to interest expense over the term of the 2013 Notes. The 2013 Notes were issued at an original issuance discount of $5.5 million, which is being amortized using the effective interest method at an interest rate of 6.25% over their term. During the years ended December 31, 2016, 2015, and 2014 we recognized $0.6 million, $0.6 million and $0.5 million, respectively, of interest expense related to the amortization of the debt discount. In January 2014, holders of the 2013 Notes exchanged their 2013 Notes for registered notes with the same terms.

6% Senior Notes Due October 2022

In April 2014, we issued $350.0 million aggregate principal amount of the 2014 Notes. We received net proceeds of $337.4 million, after original issuance discount and issuance costs, from this offering, which we used to fund a portion of the April 2014 MidCon Acquisition and repay borrowings under our revolving credit facility. We incurred $7.0 million in transaction costs related to this issuance. Unamortized deferred financing costs were included in long-term debt as a direct deduction from the carrying amount of our 2014 Notes, and are being amortized to interest expense over the term of the 2014 Notes. The 2014 Notes were issued at an original issuance discount of $5.7 million which is being amortized using the effective interest method at an interest rate of 6.25% over their term. During the year ended December 31, 2016, 2015 and 2014, we recognized $0.6 million, $0.6 million and $0.5 million, respectively, of interest expense related to the amortization of the debt discount. In February 2015, holders of the 2014 Notes exchanged their 2014 Notes for registered notes with the same terms.

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The 2013 Notes and the 2014 Notes are guaranteed on a senior unsecured basis by all of our existing subsidiaries (other than APLP Finance Corp. which is a co-issuer of the 2013 Notes and the 2014 Notes) and certain of our future subsidiaries. The 2013 Notes and the 2014 Notes and the guarantees, respectively, are our and the guarantors’ general unsecured senior obligations, rank equally in right of payment with all of our and the guarantors’ other senior obligations, and are effectively subordinated to all of our and the guarantors’ existing and future secured debt to the extent of the value of the collateral securing such indebtedness. In addition, the 2013 Notes and the 2014 Notes and guarantees are effectively subordinated to all existing and future indebtedness and other liabilities of any future non-guarantor subsidiaries. All of our subsidiaries are 100% owned, directly or indirectly, by us and guarantees by our subsidiaries are full and unconditional (subject to customary release provisions) and constitute joint and several obligations. We have no assets or operations independent of our subsidiaries, and there are no significant restrictions upon our subsidiaries’ ability to distribute funds to us. APLP Finance Corp. has no operations and does not have revenue other than as may be incidental as co-issuer of the 2013 Notes and the 2014 Notes. Because we have no independent operations, the guarantees are full and unconditional (subject to customary release provisions) and constitute joint and several obligations of our subsidiaries other than APLP Finance Corp., and as a result we have not included consolidated financial information of our subsidiaries.

The 2013 Notes and the 2014 Notes are guaranteed on a senior unsecured basis by all of our existing subsidiaries (other than APLP Finance Corp., which is a co-issuer of the 2013 Notes and the 2014 Notes) and certain of our future subsidiaries. These guarantees are full and unconditional subject to customary release provisions including:


(1)	in connection with any sale or other disposition of all or substantially all of a subsidiary guarantor’s assets (including by way of merger or consolidation) to a third party or unrestricted subsidiary, if the transaction does not violate the asset sale provisions of the indentures;


(2)	in connection with any sale or other disposition of the equity interests of a subsidiary guarantor to a third party or unrestricted subsidiary, if the transaction does not violate the asset sale provisions of the indentures and the subsidiary guarantor is no longer a restricted subsidiary of the Partnership;


(3)	if the Partnership designates any subsidiary guarantor as an unrestricted subsidiary in accordance with the terms of the indentures;


(4)	upon legal defeasance, covenant defeasance or satisfaction and discharge of the indentures;


(5)	upon the liquidation or dissolution of a subsidiary guarantor, provided no default has occurred that is continuing;


(6)	at such time as a subsidiary guarantor no longer guarantees any other indebtedness of the issuers or any guarantor; or


(7)	upon a subsidiary guarantor consolidating with, merging into or transferring all of its assets to the Partnership or another guarantor, and as a result of, or in connection with, such transaction a guarantor subsidiary dissolving or otherwise ceasing to exist.

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Long-Term Debt Maturity Schedule

Contractual maturities of long-term debt (excluding interest to be accrued thereon) at December 31, 2016 are as follows (in thousands):



	December 31, 2016
2017	$	—
2018	659,500		⁽¹⁾
2019	—
2020	—
2021	350,000		⁽¹⁾
Thereafter	350,000		⁽¹⁾
Total debt	$	1,359,500	⁽¹⁾


⁽¹⁾	This amount represents the full face value of our term loan, 2013 Notes, and 2014 Notes and has not been reduced by the aggregated unamortized discount of $7.3 million and the aggregated unamortized deferred financing of $9.5 million as of December 31, 2016.

9. Partners’ Equity, Allocations and Cash Distributions

Units Outstanding

On November 19, 2016 we completed the November 2016 Contract Operations Acquisition from Archrock. In connection with the acquisition, we issued approximately 5.5 million common units to Archrock and approximately 111,000 general partner units to our general partner.

On September 30, 2016, we issued and sold 1,158 general partner units to our general partner so it could maintain its approximate 2% general partner interest in us.

In May 2015, we entered into an At-The-Market Equity Offering Sales Agreement (the “ATM Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., J.P. Morgan Securities LLC, RBC Capital Markets, LLC and Wells Fargo Securities, LLC. During the year ended December 31, 2015, we sold 49,774 common units for net proceeds of $1.2 million pursuant to the ATM Agreement. We did not make any sales under the ATM Agreement during 2016 and the ATM Agreement expired pursuant to its terms on June 21, 2016.

In April 2015, we completed the April 2015 Contract Operations Acquisition from Archrock. In connection with this acquisition, we issued approximately 4.0 million common units to Archrock and approximately 80,000 general partner units to our general partner.

Partners’ capital at December 31, 2016 consisted of 65,519,860 common units outstanding representing a 98% ownership interest in us and 1,326,965 general partner units representing a 2% general partner interest in us.

As of December 31, 2016, Archrock owned 29,064,637 common units and 1,326,965 general partner units, collectively representing a 45% interest in us.

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Common Units

The common units have the right to receive distributions of available cash from operating surplus.

The common units have limited voting rights as set forth in our partnership agreement.

General Partner Units

The general partner units have the same rights to receive distributions of available cash from operating surplus as the common units for each quarter. The general partner units also have the right to receive incentive distributions of cash in excess of the minimum quarterly distributions.

The general partner units have the management rights set forth in our partnership agreement.

Cash Distributions

We make distributions of available cash (as defined in our partnership agreement) from operating surplus in the following manner:


•	first, 98% to common unitholders, pro rata, and 2% to our general partner, until each unit has received a distribution of $0.4025;


•	second, 85% to all common unitholders, pro rata, and 15% to our general partner, until each unit has received a distribution of $0.4375;


•	third, 75% to all common unitholders, pro rata, and 25% to our general partner, until each unit has received a total of $0.5250; and


•	thereafter, 50% to all common unitholders, pro rata, and 50% to our general partner.

The following table summarizes our distributions per unit for 2014, 2015 and 2016:



Period Covering	Payment Date	Distribution per Limited Partner Unit		Total Distribution
1/1/2014 — 3/31/2014	May 15, 2014	$	0.5375	$	33.1	million	(1)
4/1/2014 — 6/30/2014	August 14, 2014	0.5425		33.6		million	(1)
7/1/2014 — 9/30/2014	November 14, 2014	0.5525		34.8		million	(1)
10/1/2014 — 12/31/2014	February 13, 2015	0.5575		35.3		million	(1)
1/1/2015 — 3/31/2015	May 15, 2015	0.5625		35.9		million	(1)
4/1/2015 — 6/30/2015	August 14, 2015	0.5675		39.1		million	(1)
7/1/2015 — 9/30/2015	November 13, 2015	0.5725		39.7		million	(1)
10/1/2015 — 12/31/2015	February 12, 2016	0.5725		39.7		million	(1)
1/1/2016 — 3/31/2016	May 13, 2016	0.2850		17.5		million
4/1/2016 — 6/30/2016	August 15, 2016	0.2850		17.5		million
7/1/2016 — 9/30/2016	November 14, 2016	0.2850		17.5		million
10/1/2016 — 12/31/2016	February 14, 2017	0.2850		19.1		million


⁽¹⁾	Includes distributions to our general partner on its incentive distribution rights.

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10. Unit-Based Compensation

Long-Term Incentive Plan

Our board of directors adopted the Archrock Partners, L.P. Long-Term Incentive Plan (the “Plan”) in October 2006 for the benefit of the employees, directors and consultants of us, Archrock and our respective affiliates. A maximum of 1,035,378 common units are available for the issuance of common unit options, restricted units, unit awards and phantom units under the Plan. The Plan is administered by the compensation committee of our board of directors (the “Plan Administrator”).

Phantom units are notional units that entitle the grantee to receive common units upon the vesting of such phantom units or, at the discretion of the Plan Administrator, cash equal to the fair market value of the underlying common units. Phantom units granted under the Plan may include nonforfeitable tandem distribution equivalent rights to receive cash distributions on unvested phantom units in the quarter in which distributions are paid on common units.

During the years ended December 31, 2016, 2015 and 2014, we recognized $1.2 million, $1.1 million and $1.4 million of unit-based compensation expense, respectively, which excludes unit-based compensation expense that was charged back to Archrock of $0.6 million, $1.2 million and $1.2 million, respectively.

We have granted phantom units to officers and directors of Archrock GP LLC and to employees of Archrock and its subsidiaries. Because we grant phantom units to non-employees, we are required to remeasure the fair value of these phantom units, which is based on the fair value of our common units, each period and record a cumulative adjustment of the expense previously recognized. During the year ended December 31, 2016 we recorded an immaterial reduction to SG&A expense related to the fair value remeasurement of phantom units. During the years ended December 31, 2015, and 2014, we recorded a reduction to SG&A expense of $0.3 million, and $0.2 million, respectively, related to the fair value remeasurement of phantom units.

Phantom Units

During the year ended December 31, 2016, we granted 189,945 phantom units to officers and directors of Archrock GP LLC and certain employees of Archrock and its subsidiaries. Phantom units awarded to officers and employees generally vest one-third per year on each of the first three anniversaries of the grant date, subject to continued services through the applicable vesting date. Phantom units awarded to directors vest immediately and become common units at the grant date.

The following table presents phantom unit activity during the year ended December 31, 2016:



	Phantom Units (in thousands)		Weighted Average Grant-Date Fair Value per Unit
Phantom units outstanding, January 1, 2016	77		$	27.01
Granted	190		7.84
Vested	(70	)	18.34
Phantom units outstanding, December 31, 2016	197		11.60

As of December 31, 2016, we expect $2.1 million of unrecognized compensation cost related to unvested phantom units to be recognized over the weighted-average period of 2.0 years.

11. Accounting for Derivatives

We are exposed to market risks associated with changes in interest rates. We use derivative financial instruments to minimize the risks and/or costs associated with financial activities by managing our exposure to interest rate fluctuations on a portion of our debt obligations. We do not use derivative financial instruments for trading or other speculative purposes.

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Interest Rate Risk

At December 31, 2016, we were a party to the following interest rate swaps, which were entered into to offset changes in expected cash flows due to fluctuations in the associated variable interest rates:



		Notional Value
Expiration Date		(in millions)
May 2018		$300
May 2019		100
May 2020		100
		$500

As of December 31, 2016, the weighted average effective fixed interest rate on our interest rate swaps was 1.6%. We have designated these interest rate swaps as cash flow hedging instruments so that any change in their fair values is recognized as a component of comprehensive income (loss) and is included in accumulated other comprehensive income (loss) to the extent the hedge is effective. As the swap terms substantially coincide with the hedged item and are expected to offset changes in expected cash flows due to fluctuations in the variable rate, we currently do not expect a significant amount of ineffectiveness on these hedges. We perform quarterly calculations to determine whether the swap agreements are still effective and to calculate any ineffectiveness. We recorded an immaterial amount of interest income during the year ended December 31, 2016 compared to $0.4 million of interest income during the year ended December 31, 2015 due to ineffectiveness related to interest rate swaps. There was no ineffectiveness related to interest rate swaps during the year ended December 31, 2014. We estimate that $3.4 million of deferred losses attributable to interest rate swaps and included in our accumulated other comprehensive income (loss) at December 31, 2016, will be reclassified into earnings as interest expense at then current values during the next twelve months as the underlying hedged transactions occur. Cash flows from derivatives designated as hedges are classified in our consolidated statements of cash flows under the same category as the cash flows from the underlying assets, liabilities or anticipated transactions, unless the derivative contract contains a significant financing element; in this case, the cash settlements for these derivatives are classified as cash flows from financing activities in our consolidated statements of cash flows.

The following tables present the effect of derivative instruments on our consolidated financial position and results of operations (in thousands):



		Fair Value Asset (Liability)
	Balance Sheet Location	December 31, 2016			December 31, 2015
Derivatives designated as hedging instruments:
Interest rate swaps	Intangible and other assets, net	$	413		$	45
Interest rate swaps	Current portion of interest rate swaps	(3,226		)	(4,608		)
Interest rate swaps	Other long-term liabilities	(377		)	(1,421		)
Total derivatives		$	(3,190	)	$	(5,984	)



	Loss Recognized in Other Comprehensive Income (Loss) on Derivatives			Location of Loss Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)	Loss Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)
Derivatives designated as cash flow hedges:
Interest rate swaps
Year Ended December 31, 2016	$	(3,069	)	Interest expense	$	(4,457	)
Year Ended December 31, 2015	(8,901		)	Interest expense	(6,781		)
Year Ended December 31, 2014	(5,879		)	Interest expense	(4,794		)

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The counterparties to our derivative agreements are major international financial institutions. We monitor the credit quality of these financial institutions and do not expect non-performance by any counterparty, although such non-performance could have a material adverse effect on us. We have no specific collateral posted for our derivative instruments. The counterparties to our interest rate swaps are also lenders under our senior secured credit facility and, in that capacity, share proportionally in the collateral pledged under the related facility.

12. Fair Value Measurements

The accounting standard for fair value measurements and disclosures establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into the following three broad categories:


•	Level 1 — Quoted unadjusted prices for identical instruments in active markets to which we have access at the date of measurement.

•

Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. Level 2 inputs are those in markets for which there are few transactions, the prices are not current, little public information exists or prices vary substantially over time or among brokered market makers.


•	Level 3 — Model derived valuations in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are those inputs that reflect our own assumptions regarding how market participants would price the asset or liability based on the best available information.

The following table presents our assets and liabilities measured at fair value on a recurring basis as of December 31, 2016 and 2015, with pricing levels as of the date of valuation (in thousands):



	December 31, 2016							December 31, 2015
	(Level 1)		(Level 2)			(Level 3)		(Level 1)		(Level 2)			(Level 3)
Interest rate swaps asset	$	—	$	413		$	—	$	—	$	45		$	—
Interest rate swaps liability	—		(3,603		)	—		—		(6,029		)	—

On a quarterly basis, our interest rate swaps are recorded at fair value utilizing a combination of the market approach and income approach to estimate fair value based on forward LIBOR curves.

The following table presents our assets and liabilities measured at fair value on a nonrecurring basis during the years ended December 31, 2016 and 2015, with pricing levels as of the date of valuation (in thousands):



	December 31, 2016						December 31, 2015
	(Level 1)		(Level 2)		(Level 3)		(Level 1)		(Level 2)		(Level 3)
Impaired long-lived assets	$	—	$	—	$	3,581	$	—	$	—	$	2,789

Our estimate of the impaired long-lived assets’ fair value was primarily based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use. We discounted the expected proceeds, net of selling and other carrying costs, using a weighted average disposal period of four years.

13. Long-Lived Asset Impairment

During the year ended December 31, 2016, we reviewed the future deployment of our idle compression assets for units that were not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 430 idle compressor units totaling approximately 155,000 horsepower would be retired from the active fleet. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded a $42.5 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

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During the year ended December 31, 2015, we reviewed the future deployment of our idle compression assets for units that were not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 330 idle compressor units totaling approximately 115,000 horsepower would be retired from the active fleet. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result we recorded a $35.3 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

During the year ended December 31, 2014, we evaluated other long-lived assets for impairment and recorded long-lived asset impairments of $0.4 million on these assets.

14. Restructuring Charges

In the first quarter of 2016, Archrock determined to undertake a cost reduction program to reduce its on-going operating expenses, including workforce reductions and closure of certain make ready shops. These actions were the result of Archrock’s review of its business and efforts to efficiently manage cost and maintain its business in line with current and expected activity levels and anticipated make ready demand in the U.S. market. During 2016, we incurred $7.3 million of restructuring charges comprised of an allocation of expenses related to severance benefits and consulting fees associated with this cost reduction plan from Archrock to us pursuant to the terms of the Omnibus Agreement based on horsepower. These charges are reflected as restructuring charges in our consolidated statements of operations. Archrock’s cost reduction program under this plan was completed during the fourth quarter of 2016.

In January 2014, Archrock announced a plan to centralize its make-ready operations to improve the cost and efficiency of its shops and further enhance the competitiveness of our and Archrock’s combined compressor fleet. As part of this plan, Archrock examined both recent and anticipated changes in the U.S. market, including the throughput demand of its shops and the addition of new equipment to our and Archrock’s combined U.S. compressor fleet. To better align its costs and capabilities with the current market, Archrock has determined to close several of its make-ready shops. The centralization of its make-ready operations was completed in the second quarter of 2014.

During 2014, we incurred $0.7 million of restructuring charges comprised of an allocation of expenses, including termination benefits associated with the centralization of Archrock’s make-ready operations, from Archrock to us pursuant to the terms of the Omnibus Agreement based on revenue and horsepower. These charges are reflected as restructuring charges in our consolidated statements of operations.

15. Income Taxes

As a partnership, we are generally not subject to income taxes at the entity level because our income is included in the tax returns of our partners. However, certain states impose an entity-level income tax on partnerships.

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The provision for state income taxes consisted of the following (in thousands):



	Years Ended December 31,
	2016			2015			2014
Current tax provision:
State	$	(32	)	$	1,195		$	(89	)
Total current	(32		)	1,195			(89		)
Deferred tax provision:
State	$	1,444		(160		)	1,402
Total deferred	1,444			(160		)	1,402
Provision for income taxes	$	1,412		$	1,035		$	1,313

Deferred income tax balances are the direct effect of temporary differences between the financial statement carrying amounts and the tax basis of assets and liabilities at the enacted tax rates expected to be in effect when the taxes are actually paid or recovered. The tax effects of temporary differences that give rise to deferred tax liabilities are as follows (in thousands):



	Years Ended December 31,
	2016		2015
Deferred tax liabilities:
Property, plant and equipment	$	2,500	$	1,054
Total deferred tax liabilities	2,500		1,054
Net deferred tax liabilities	$	2,500	$	1,054

A reconciliation of the beginning and ending amount of unrecognized tax benefits is shown below (in thousands):



	Years Ended December 31,
	2016			2015		2014
Beginning balance	$	1,962		$	1,650	$	643
Additions based on tax positions related to current year	121			312		490
Additions based on tax positions related to prior years	—			—		517
Reductions based on tax positions related to prior years	$	(201	)	$	—	$	—
Ending balance	$	1,882		$	1,962	$	1,650

We had $1.9 million, $2.0 million and $1.7 million of unrecognized tax benefits at December 31, 2016, 2015 and 2014, respectively, which if recognized, would affect the effective tax rate. We recorded $0.1 million of potential interest expense and penalties related to unrecognized tax benefits associated with uncertain tax positions as of December 31, 2016. We recorded immaterial amounts of potential interest expense and penalties related to unrecognized tax benefits associated with uncertain tax positions as of December 31, 2015 and 2014. To the extent interest and penalties are not assessed with respect to uncertain tax positions, amounts accrued will be reduced and reflected as reductions in income tax expense.

We and our subsidiaries file income tax returns in the U.S. federal jurisdiction and in numerous state jurisdictions. State income tax returns are generally subject to examination for a period of three to five years after filing the returns. However, the state impact of any U.S. federal audit adjustments and amendments remain subject to examination by various states for up to one year after formal notification to the states. We are currently involved in a state audit. During 2016, we settled a few years of the state audit, which resulted in a refund of $1.2 million and a reduction of $0.2 million of previously accrued uncertain tax benefits. As of December 31, 2016, we did not have any federal or state audits underway that would have a material impact on our financial position or results of operations.

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Exterran Holdings, Inc. completed an internal restructuring on November 3, 2015 in connection with the Spin-off which we believe, when combined with the sale or exchange of Partnership units during the 12 months prior to the Spin-off, resulted in a technical termination of the Partnership for U.S. federal income tax purposes (the “2015 Technical Termination”) on the date of the Spin-off. The 2015 Technical Termination did not affect our consolidated financial statements nor did it affect our classification as a partnership or otherwise affect the nature or extent of our “qualifying income” for U.S. federal income tax purposes. Our taxable year for all unitholders ended on November 3, 2015 and resulted in a deferral of depreciation deductions that were otherwise allowable in computing the taxable income of our unitholders. This deferral of depreciation deductions may have resulted in increased taxable income (or reduced taxable loss) to certain of our unitholders in 2015.

On September 13, 2013, the U.S. Treasury Department and the Internal Revenue Service issued final regulations that address costs incurred in acquiring, producing, or improving tangible property (the “tangible property regulations”). The tangible property regulations are generally effective for tax years beginning on or after January 1, 2014, and although they could have been adopted in earlier years, we did not do so. The tangible property regulations require us to make tax accounting method changes or file election statements with our U.S. federal tax return for our tax year beginning on January 1, 2014; however, these new requirements do not have a material impact on our consolidated financial statements.

The following table reconciles net income (loss), as reported, to our U.S. federal partnership taxable income (loss) (in thousands):



	Years Ended December 31,
	2016				2015			2014
Net income (loss), as reported	$	(10,757	)		$	(84,025	)	$	61,719
Book/tax depreciation and amortization adjustment	(289,694		)	⁽¹⁾	17,468			5,834
Book/tax goodwill impairment	—				127,757			—
Book/tax long-lived asset impairment	46,258				38,987			12,810
Book/tax adjustment for unit-based compensation expense	978				754			941
Book/tax adjustment for interest rate swap terminations	364				1,233			2,025
Other temporary differences	(5,390		)		(15,907		)	(9,435		)
Other permanent differences	1,796				(155		)	1,413
U.S. federal partnership taxable income (loss)	$	(256,445	)		$	86,112		$	75,307


⁽¹⁾	Represents the excess of tax depreciation and amortization over book depreciation and amortization, which increased in connection with the 2015 Technical Termination.

The following allocations and adjustments (which are not reflected in the reconciliation because they do not affect our total taxable income) may affect the amount of taxable income or loss allocated to a unitholder:

•

Internal Revenue Code (“IRC”) Section 704(c) Allocations: We make special allocations under IRC Section 704(c) to eliminate the disparity between a unitholder’s U.S. GAAP capital account (credited with the fair market value of contributed property or the investment) and tax capital account (credited with the investor’s tax basis). The effect of such allocations will be to either increase or decrease a unitholder’s share of depreciation, amortization and/or gain or loss on the sale of assets.

•

IRC Section 743(b) Basis Adjustments: Because we have made the election provided by IRC Section 754, we adjust each unitholder’s basis in our assets (inside basis) pursuant to IRC Section 743(b) to reflect their purchase price (outside basis). The Section 743(b) adjustment belongs to a particular unitholder and not to other unitholders. Basis adjustments such as this give rise to income and deductions by reference to the portion of each transferee unitholder’s purchase price attributable to each of our assets. The effect of such adjustments will be to either increase or decrease a unitholder’s share of depreciation, amortization and/or gain or loss on sale of assets.


•	Gross Income and Loss Allocations: To maintain the uniformity of the economic and tax characteristics of our units, we will sometimes make a special allocation of income or loss to a unitholder. Any such allocations of income or loss will decrease or increase, respectively, our distributive taxable income.

The net tax basis in our assets and liabilities is less than the reported amounts on the financial statements by approximately $527 million as of December 31, 2016.

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16. Commitments and Contingencies

In 2011, the Texas Legislature enacted changes related to the appraisal of natural gas compressors for ad valorem tax purposes by expanding the definitions of “Heavy Equipment Dealer” and “Heavy Equipment” effective from the beginning of 2012 (the “Heavy Equipment Statutes”). Under the revised statutes, we believe we are a Heavy Equipment Dealer, that our natural gas compressors are Heavy Equipment and that we, therefore, are required to file our ad valorem taxes under this new methodology. We further believe that our natural gas compressors are taxable under the Heavy Equipment Statutes in the counties where we maintain a business location and keep natural gas compressors instead of where the compressors may be located on January 1 of a tax year. As a result of this new methodology, our ad valorem tax expense (which is reflected in our consolidated statements of operations as a component of cost of sales (excluding depreciation and amortization expense)) includes a benefit of $14.9 million during the year ended December 31, 2016. Since the change in methodology became effective in 2012, we have recorded an aggregate benefit of $50.1 million as of December 31, 2016, of which approximately $11.0 million has been agreed to by a number of appraisal review boards and county appraisal districts and $39.1 million has been disputed and is currently in litigation. A large number of appraisal review boards denied our position, although some accepted it, and we filed 82 petitions for review in the appropriate district courts with respect to the 2012 tax year, 93 petitions for review in the appropriate district courts with respect to the 2013 tax year, 103 petitions for review in the appropriate district courts with respect to the 2014 tax year, 111 petitions for review in the appropriate district courts with respect to the 2015 tax year and 102 petitions for review in the appropriate district courts with respect to the 2016 tax year.

To date, only five cases have advanced to the point of trial or submission of summary judgment motions on the merits, and only three cases have been decided, with two of the decisions having been rendered by the same presiding judge. All three of those decisions were appealed, and all three of the appeals have been decided by intermediate appellate courts.

On October 17, 2013, the 143rd Judicial District Court of Loving County, Texas ruled in EXLP Leasing LLC & EES Leasing LLC v. Loving County Appraisal District that our wholly-owned subsidiary, Archrock Partners Leasing LLC, formerly known as EXLP Leasing LLC (“EXLP Leasing”), and Archrock’s subsidiary, Archrock Services Leasing LLC, formerly known as EES Leasing LLC (“EES Leasing”), are Heavy Equipment Dealers and that their compressors qualify as Heavy Equipment, but the district court further held that the Heavy Equipment Statutes were unconstitutional as applied to EXLP Leasing’s and EES Leasing’s compressors. EXLP Leasing and EES Leasing appealed the district court’s constitutionality holding to the Eighth Court of Appeals in El Paso, Texas. On September 23, 2015, the Eighth Court of Appeals ruled in EXLP Leasing’s and EES Leasing’s favor by overruling the 143rd District Court’s constitutionality ruling. The Eighth Court of Appeals also ruled, however, that EXLP Leasing’s and EES Leasing’s natural gas compressors are taxable in the counties where they were located on January 1 of the tax year at issue.

On October 28, 2013, the 143rd Judicial District Court of Ward County, Texas ruled in EES Leasing LLC & EXLP Leasing LLC v. Ward County Appraisal District that EXLP Leasing and EES Leasing are Heavy Equipment Dealers and that their compressors qualify as Heavy Equipment, but the court held that the Heavy Equipment Statutes were unconstitutional as applied to their compressors. EXLP Leasing and EES Leasing appealed the district court’s constitutionality holding to the Eighth Court of Appeals in El Paso, Texas, and the Ward County Appraisal District cross-appealed the district court’s rulings that EXLP Leasing’s and EES Leasing’s compressors qualify as Heavy Equipment. On September 23, 2015, the Eighth Court of Appeals ruled in EXLP Leasing’s and EES Leasing’s favor by overruling the 143rd District Court’s constitutionality ruling and affirming its ruling that EXLP Leasing’s and EES Leasing’s compressors qualify as Heavy Equipment.

The Eighth Court of Appeals also ruled, however, that EXLP Leasing’s and EES Leasing’s natural gas compressors are taxable in the counties where they were located on January 1 of the tax year at issue. The Ward County Appraisal District and Loving County Appraisal District each filed (on January 27, 2016 and February 10, 2016, respectively) a petition asking the Texas Supreme Court to review its respective Eighth Court of Appeals decision. On March 11, 2016, EXLP Leasing and EES Leasing filed responses to the appraisal districts’ petitions and cross-petitions for review in each case asking the Texas Supreme Court to also review the Eighth Court of Appeals’ determination that natural gas compressors are taxable in the counties where they were located on January 1 of the tax year at issue. The Ward County Appraisal District filed its response to EXLP Leasing’s and EES Leasing’s cross-petition on June 6, 2016, and EXLP Leasing and EES Leasing filed their reply on June 21, 2016. The Loving County Appraisal District filed its response to EXLP Leasing’s and EES Leasing’s cross-petition on May 27, 2016, and EXLP Leasing and EES Leasing filed their reply on June 10, 2016.

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On March 18, 2014, the 10th Judicial District Court of Galveston, Texas ruled in EXLP Leasing LLC & EES Leasing LLC v. Galveston Central Appraisal District that EXLP Leasing and EES Leasing are Heavy Equipment Dealers and that their compressors qualify as Heavy Equipment, but the court held the Heavy Equipment Statutes unconstitutional as applied to their compressors. EXLP Leasing and EES Leasing appealed the district court’s constitutionality holding to the Fourteenth Court of Appeals in Houston, Texas. On August 25, 2015, the Fourteenth Court of Appeals issued a ruling stating that EXLP Leasing’s and EES Leasing’s compressors are taxable in the counties where they were located on January 1 of the tax year at issue, and it remanded the case to the district court for further evidence on the issue of whether the Heavy Equipment Statutes are constitutional as applied to EXLP Leasing’s and EES Leasing’s compressors. On November 24, 2015, EXLP Leasing and EES Leasing filed a petition asking the Texas Supreme Court to review this decision. On March 21, 2016, the Galveston Central Appraisal District filed a response to EXLP Leasing’s and EES Leasing’s petition for review, and EXLP Leasing and EES Leasing filed their reply on April 26, 2016.

In EES Leasing v. Irion County Appraisal District, EES Leasing and the appraisal district each filed motions for summary judgment in the 51st Judicial District Court of Irion County, Texas concerning the applicability and constitutionality of the Heavy Equipment Statutes. On May 20, 2014, the district court entered an order denying both motions for summary judgment, holding that a fact issue existed as to the applicability of the Heavy Equipment Statutes to the one compressor at issue. The presiding judge for the 51st District Court has since consolidated the 2012 tax year case with EES Leasing’s 2013 tax year case, which also included EXLP Leasing as a party. On August 27, 2015, the presiding judge abated the combined case, EES Leasing LLC and EXLP Leasing LLC v. Irion County Appraisal District, until the final resolution of the appellate cases considering the constitutionality of the Heavy Equipment Statutes, or further order of the court.

EXLP Leasing and EES Leasing also filed a motion for summary judgment in EES Leasing LLC & EXLP Leasing LLC v. Harris County Appraisal District, pending in the 189th Judicial District Court of Harris County, Texas. The court heard arguments on the motion on December 6, 2013 but has yet to rule. No trial date has been set.

On June 3, 2015, the Fourth Court of Appeals in San Antonio, Texas issued a decision reversing the 406th District Court’s dismissal of EXLP Leasing’s and EES Leasing’s tax appeals for want of jurisdiction. In EXLP Leasing LLC et. al v. Webb County Appraisal District, United Independent School District (“United ISD”) intervened as a party in interest and sought to dismiss the lawsuit arguing that the district court was without jurisdiction to hear the appeal. Under Section 42.08(b) of the Texas Tax Code, a property owner must pay before the delinquency date the lesser of (1) the amount of taxes due on the portion of the taxable value of the property that is not in dispute or (2) the amount of taxes due on the property under the order from which the appeal is taken. EXLP Leasing and EES Leasing paid zero taxes to Webb County because the entire amount of tax assessed by Webb County was in dispute. Instead, as required by the Heavy Equipment Statutes and Texas Comptroller forms, EXLP Leasing and EES Leasing paid taxes on the compressors at issue to Victoria County, where they maintain their place of business and keep natural gas compressors. The Webb County Appraisal District and United ISD contested EXLP Leasing’s and EES Leasing’s position that the Heavy Equipment Statutes contain situs provisions requiring that taxes be paid where the dealer has a business location and keeps its natural gas compressors, instead arguing that taxes are payable to the county where each compressor is located as of January 1 of the tax year at issue. The district court granted United ISD’s motion to dismiss on April 1, 2014 and declined EXLP Leasing’s and EES Leasing’s motion to reconsider. The Fourth Court of Appeals reversed, holding that, based on the plain meaning of Section 42.08(b)(1), and because the entire amount was in dispute, EXLP Leasing and EES Leasing were not required to prepay disputed taxes to invoke the trial court’s jurisdiction. The Fourth Court of Appeals denied United ISD’s request for a rehearing. On September 29, 2015, United ISD filed a petition for review in the Texas Supreme Court. On December 4, 2015, the Texas Supreme Court denied United ISD’s petition for review.

United ISD has four delinquency lawsuits pending against EXLP Leasing and EES Leasing in the 49th District Court of Webb County, Texas. The cases have been abated pending the resolution of EXLP Leasing’s and EES Leasing’s 2012 tax year case pending in the 406th Judicial District Court of Webb County, Texas.

On September 2, 2016, the Texas Supreme Court requested that consolidated merits briefs be filed in EXLP Leasing’s and EES Leasing’s cases against the Loving County Appraisal District, Ward County Appraisal District, and Galveston Central Appraisal District, as well as two similar cases involving different taxpayers. On September 19, 2016, the Supreme Court entered a consolidated briefing schedule for the five cases. Consolidated briefing was completed on February 7, 2017.

We continue to believe that the revised statutes are constitutional as applied to natural gas compressors and that under the revised statutes our natural gas compressors are taxable in the counties where we maintain a business location and keep natural gas compressors. Recognizing the similarity of the issues and that these cases will ultimately be resolved by the Texas appellate courts, most of the remaining 2012-2016 district court cases have been formally or effectively abated pending a decision from the Texas Supreme Court.

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If our appeals are ultimately unsuccessful, or if the Texas Supreme Court decides to review the matter and rules against us, we would be required to pay ad valorem taxes up to the aggregate benefit we have recorded, and the additional ad valorem tax payments may also be subject to substantial penalties and interest. In addition, while we do not expect the ultimate determination of the issue of where the natural gas compressors are taxable under the Heavy Equipment Statutes would have an impact on the amount of taxes due, we could be subject to substantial penalties if we are unsuccessful on this issue. Also, if we are unsuccessful in our litigation with the appraisal districts, or if legislation is enacted in Texas that repeals or alters the Heavy Equipment Statutes such that in the future we do not qualify as a Heavy Equipment Dealer or our compressors do not qualify as Heavy Equipment, then we would likely be required to pay these ad valorem taxes under the old methodology going forward, which would increase our quarterly cost of sales expense up to approximately the amount of our then most recent quarterly benefit recorded. If this litigation is resolved against us in whole or in part, or if in the future we do not qualify as a Heavy Equipment Dealer or our compressors do not qualify as Heavy Equipment because of new or revised Texas statutes, we will incur additional taxes and could be subject to substantial penalties and interest, which would impact our future results of operations and cash flows, including our cash available for distribution.

We are subject to a number of state and local taxes that are not income-based. As many of these taxes are subject to audit by the taxing authorities, it is possible that an audit could result in additional taxes due. We accrue for such additional taxes when we determine that it is probable that we have incurred a liability and we can reasonably estimate the amount of the liability. As of December 31, 2016 and 2015, we had accrued $1.5 million and $1.1 million, respectively, for the outcomes of non-income based tax audits. We do not expect that the ultimate resolutions of these audits will result in a material variance from the amounts accrued. We do not accrue for unasserted claims for tax audits unless we believe the assertion of a claim is probable, it is probable that it will be determined that the claim is owed and we can reasonably estimate the claim or range of the claim. We also believe the likelihood is remote that the impact of potential unasserted claims from non-income based tax audits could be material to our consolidated financial position, but it is possible that the resolution of future audits could be material to our results of operations or cash flows for the period in which the resolution occurs.

17. Selected Quarterly Financial Data (Unaudited)

In management’s opinion, the summarized quarterly financial data below (in thousands, except per unit amounts) contains all appropriate adjustments, all of which are normally recurring adjustments, considered necessary to present fairly our financial position and results of operations for the respective periods.



	March 31, 2016⁽¹⁾		June 30, 2016⁽²⁾		September 30 2016⁽³⁾			December 31 2016⁽⁴⁾
Revenue	$	151,424	$	140,052	$	135,478		$	135,406
Gross profit⁽⁹⁾	51,744		47,844		42,629			26,836
Net income (loss)	520		3,311		(567		)	(14,021		)
Income (loss) per common unit — basic	0.01		0.05		(0.01		)	(0.22		)
Income (loss) per common unit — diluted	0.01		0.05		(0.01		)	(0.22		)



	March 31, 2015⁽⁵⁾		June 30, 2015⁽⁶⁾		September 30 2015⁽⁷⁾		December 31 2015⁽⁸⁾
Revenue	$	164,295	$	167,801	$	163,293	$	161,419
Gross profit⁽⁹⁾	63,150		64,160		55,678		(92,636		)
Net income (loss)	20,085		22,327		11,498		(137,935		)
Income (loss) per common unit — basic	0.28		0.30		0.11		(2.34		)
Income (loss) per common unit — diluted	0.28		0.30		0.11		(2.34		)

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⁽¹⁾	During the first quarter of 2016, we completed the March 2016 Acquisition (see Note 3 (“Business Acquisitions”)). Additionally, we recorded $6.3 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)) and $4.1 million of restructuring charges (see Note 14 (“Restructuring Charges”)).


⁽²⁾	During the second quarter of 2016, we recorded $8.3 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)) and $1.2 million of restructuring charges (see Note 14 (“Restructuring Charges”)).


⁽³⁾	During the third quarter of 2016, we recorded $7.9 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)) and $1.9 million of restructuring charges (see Note 14 (“Restructuring Charges”)).


⁽⁴⁾	During the fourth quarter of 2016, we completed the November 2016 Acquisition from Archrock, Inc. (see Note 3 (“Business Acquisitions”)). Additionally, we recorded $23.8 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)) and $0.1 million restructuring charges (see Note 14 (“Restructuring Charges”)).


⁽⁵⁾	During the first quarter of 2015, we recorded $3.5 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)).


⁽⁶⁾	During the second quarter of 2015, we completed the April 2015 Contract Operations Acquisition from Archrock, Inc. (see Note 3 (“Business Acquisitions”)). Additionally, we recorded $1.8 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)).


⁽⁷⁾	During the third quarter of 2015, we recorded $7.2 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)).


⁽⁸⁾	During the fourth quarter of 2015, we recorded $127.8 million of goodwill impairment (see Note 5 (“Goodwill”)) and $26.5 million of long-lived asset impairments (see Note 13 (“Long-Lived Asset Impairment”)).


⁽⁹⁾	Gross profit is defined as revenue less cost of sales, direct depreciation and amortization expense and long-lived asset impairment charges.

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ARCHROCK PARTNERS, L.P.

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

(In thousands)



Description	Balance at Beginning of Period		Charged to Costs and Expenses		Deductions⁽¹⁾		Balance at End of Period
Allowance for doubtful accounts deducted from accounts receivable in the balance sheet:
December 31, 2016	$	2,463	$	2,672	$	3,737	$	1,398
December 31, 2015	1,253		2,255		1,045		2,463
December 31, 2014	363		1,060		170		1,253


⁽¹⁾	Uncollectible accounts written off.

S-1

Name and Address of Beneficial Owner

Common Units
Beneficially Owned

Percent of Common
Units Beneficially
Owned⁽¹⁾

Harvest Funds Advisors LLC ⁽²⁾
100 West Lancaster Avenue
Wayne, PA 19087

OppenheimerFunds, Inc.⁽³⁾
Two World Financial Center
225 Liberty Street
New York, NY 10281

Archrock, Inc.
16666 Northchase Drive
Houston, TX 77060