Exhibit 99.1

News Release

U.S. Silica Holdings, Inc. Announces Third Quarter 2016 Results

Frederick, Md., Nov. 3, 2016 – U.S. Silica Holdings, Inc. (NYSE: SLCA) today announced a net loss of $11.3 million or $(0.17) per basic and diluted share for the third quarter ended Sept. 30, 2016 compared with net income of $2.4 million or $0.05 per basic share and $0.04 per diluted share for the third quarter of 2015. The third quarter results were negatively impacted by $4.7 million of business development-related expense, including acquisition-related costs for Sandbox and NBR Sands. Excluding these expenses, net of $1.8 million tax effect, EPS was $(0.13) per basic share for the quarter.

“Our team showed tremendous discipline and determination during the quarter to successfully integrate two major acquisitions while continuing to move our base businesses forward,” said Bryan Shinn, president and chief executive officer. “With the additions of Sandbox and NBR Sands, we can further maximize value for our Oil & Gas customers by having the widest raw sand product offering of anyone in our industry and the only commercially viable last-mile containerized delivery solution. On the industrial side, we continue to benefit from the inherent value of ISP to generate consistent cash flows to cover fixed costs in a downturn while providing a platform for growth going forward.”

Third Quarter 2016 Highlights

Total Company

Oil and Gas

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Industrial and Specialty Products

Capital Update

As of Sept. 30, 2016, the Company had $264.1 million in cash and cash equivalents and $46.0 million available under its credit facilities. Total debt at Sept. 30, 2016 was $506.6 million. Capital expenditures in the third quarter totaled $9.4 million and were associated largely with the Company’s investments in various maintenance, expansion and cost improvement projects.

Outlook and Guidance

Due to the current lack of visibility in its Oil and Gas business, the Company will continue to refrain from providing guidance for Adjusted EBITDA until such time as it can gain more clarity around our customers’ business activity levels and the associated demand for our products. Based on current market conditions, the Company anticipates that its capital expenditures for 2016 will be in the range of $42 million to $47 million.

Conference Call

U.S. Silica will host a conference call for investors tomorrow, Nov. 4, 2016 at 9:00 a.m. Eastern Time to discuss these results. Hosting the call will be Bryan Shinn, president and chief executive officer and Don Merril, executive vice president and chief financial officer. Investors are invited to listen to a live webcast of the conference call by visiting the “Investor Resources” section of the Company’s website at www.ussilica.com. The webcast will be archived for one year. The call can also be accessed live over the telephone by dialing (877) 869-3847 or for international callers, (201) 689-8261. A replay will be available shortly after the call and can be accessed by dialing (877) 660-6853 or for international callers (201) 612-7415. The conference ID number for the replay is 13647944. The replay of the call will be available through Dec. 2, 2016.

About U.S. Silica

U.S. Silica Holdings, Inc., a member of the Russell 2000, is a leading producer of commercial silica used in the oil and gas industry, and in a wide range of industrial applications. Over its 116-year history, U.S. Silica has developed core competencies in mining, processing, logistics and materials science that enable it to produce and cost-effectively deliver 235 products to over 1,200 customers across our end markets. The Company currently operates nine industrial sand production plants, nine oil and gas sand production plants and seven Sandbox distribution centers. The Company is headquartered in Frederick, Maryland and also has offices located in Chicago, Illinois, and Houston, Texas.

Forward-looking Statements

Certain statements in this press release are “forward-looking statements” made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and speak only as of this date. Forward-looking statements made include any statement that does not directly relate to any historical or current fact and may include, but are not limited to, statements regarding U.S. Silica’s growth opportunities, strategy, future financial results, forecasts, projections, plans and capital expenditures, and the commercial silica industry. Forward-looking statements are based on our current expectations and assumptions, which may not prove to be accurate. These statements are not guarantees and are subject to risks, uncertainties and changes in circumstances that are difficult to predict. Many factors could cause actual results to differ materially and adversely from these forward-looking statements. Among these factors are: (1) fluctuations in demand for commercial silica; (2) the cyclical nature of our customers’ businesses; (3) operating risks that are beyond our control; (4) federal, state and local

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legislative and regulatory initiatives relating to hydraulic fracturing; (5) our ability to implement our capacity expansion plans within our current timetable and budget; (6) loss of, or reduction in, business from our largest customers or failure of our customers to pay amounts due to us; (7) increasing costs or a lack of dependability or availability of transportation services or infrastructure; (8) our substantial indebtedness and pension obligations; (9) our ability to attract and retain key personnel; (10) silica-related health issues and corresponding litigation; (11) seasonal and severe weather conditions; and (12) extensive and evolving environmental, mining, health and safety, licensing, reclamation and other regulation (and changes in their enforcement or interpretation). Additional information concerning these and other factors can be found in U.S. Silica’s filings with the Securities and Exchange Commission. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.

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U.S. SILICA HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited; dollars in thousands, except per share amounts)

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U.S. SILICA HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(dollars in thousands)

Non-GAAP Financial Measures

Segment Contribution Margin

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Segment contribution margin is a key metric that management uses to evaluate our operating performance and to determine resource allocation between segments. Segment contribution margin excludes certain corporate costs not associated with the operations of the segment. These unallocated costs include costs related to corporate functional areas such as sales, production and engineering, corporate purchasing, accounting, treasury, information technology, legal and human resources.

The following table sets forth a reconciliation of net income (loss), the most directly comparable GAAP financial measure, to segment contribution margin.

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Adjusted EBITDA

Adjusted EBITDA, a non-GAAP measure, is included in this release because it is a key metric used by management to assess our operating performance and by our lenders to evaluate our covenant compliance. Adjusted EBITDA excludes certain income and/or costs, the removal of which improves comparability of operating results across reporting periods. Our target performance goals under our incentive compensation plan are tied, in part, to our Adjusted EBITDA. In addition, our revolving credit facility (Revolver) contains a consolidated total net leverage ratio that we must meet as of the last day of any fiscal quarter whenever usage of the Revolver (other than certain undrawn letters of credit) exceeds 25% of the Revolver commitment, which is calculated based on our Adjusted EBITDA. Noncompliance with the financial ratio covenant contained in the Revolver could result in the acceleration of our obligations to repay all amounts outstanding under the Revolver and the term loan. Moreover, the Revolver and the term loan contain covenants that restrict, subject to certain exceptions, our ability to make permitted acquisitions, incur additional indebtedness, make restricted payments (including dividends) and retain excess cash flow based, in some cases, on our ability to meet leverage ratios calculated based on our Adjusted EBITDA.

Adjusted EBITDA is not a measure of our financial performance or liquidity under GAAP and should not be considered as an alternative to net income (loss) as a measure of operating performance, cash flows from operating activities as a measure of liquidity or any other performance measure derived in accordance with GAAP. Additionally, Adjusted EBITDA is not intended to be a measure of free cash flow for management’s discretionary use, as it does not consider certain cash requirements such as interest payments, tax payments and debt service requirements. Adjusted EBITDA contains certain other limitations, including the failure to reflect our cash expenditures, cash requirements for working capital needs and cash costs to replace assets being depreciated and amortized, and excludes certain non-recurring charges that may recur in the future. Management compensates for these limitations by relying primarily on our GAAP results and by using Adjusted EBITDA only supplementally. Our measure of Adjusted EBITDA is not necessarily comparable to other similarly titled captions of other companies due to potential inconsistencies in the methods of calculation.

The following table sets forth a reconciliation of net income (loss), the most directly comparable GAAP financial measure, to Adjusted EBITDA:

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Investor Contact:

Michael Lawson

Vice President of Investor Relations and Corporate Communications

(301) 682-0304

lawsonm@USSilica.com                                                              #

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