Back to GetFilings.com






FORM 10-K
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
(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, 2003

OR

[ ] Transition report pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934

For the transition period from to

Commission File Number 33-47667-01

Southwest Oil & Gas Income Fund XI-A, L.P.
(Exact name of registrant as specified in
its limited partnership agreement)

Delaware 75-2427267
(State or other jurisdiction (I.R.S. Employer
of incorporation or organization) Identification No.)

407 N. Big Spring, Suite 300, Midland, Texas 79701
(Address of principal executive office) (Zip Code)

Registrant's telephone number, including area code (432) 686-9927

Securities registered pursuant to Section 12(b) of the Act

None

Securities registered pursuant to Section 12(g) of the Act:

limited partnership interests

Indicate by check mark whether registrant (1) has filed 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

Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K 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. [x]

Indicate by check mark whether the registrant is an accelerated filer (as
defined in Exchange Act Rule 12b-2). Yes No X

The registrant's outstanding securities consist of Units of limited
partnership interests for which there exists no established public market
from which to base a calculation of aggregate market value.

The total number of pages contained in this report is 52. The exhibits
begin on page 49.


Table of Contents

Item Page

Part I

Glossary of Oil and Gas Terms 3

1. Business 5

2. Properties 9

3. Legal Proceedings 11

4. Submission of Matters to a Vote of Security Holders 11

Part II

5. Market for Registrant's Common Equity, Related
Stockholder Matters and Issuer Purchases of Equity Securities 12

6. Selected Financial Data 13

7. Management's Discussion and Analysis of
Financial Condition and Results of Operations 14

7A. Quantitative and Qualitative Disclosures About Market Risk 20

8. Financial Statements and Supplementary Data 21

9. Changes in and Disagreements with Accountants
on Accounting and Financial Disclosure 40

9A. Controls and Procedures 40

Part III

10. Directors and Executive Officers of the Registrant 41

11. Executive Compensation 43

12. Security Ownership of Certain Beneficial Owners and
Management and Related Stockholder Matters 44

13. Certain Relationships and Related Transactions 45

14. Principal Accountant Fees and Services 45

Part IV

15. Exhibits, Financial Statement Schedules, and Reports
on Form 8-K 46

Signatures 47


Glossary of Oil and Gas Terms
The following are abbreviations and definitions of terms commonly used in
the oil and gas industry that are used in this filing. All volumes of
natural gas referred to herein are stated at the legal pressure base to the
state or area where the reserves exit and at 60 degrees Fahrenheit and in
most instances are rounded to the nearest major multiple.

Bbl. One stock tank barrel, or 42 United States gallons liquid volume.

Developmental well. A well drilled within the proved area of an oil or
natural gas reservoir to the depth of a stratigraphic horizon known to be
productive.

Exploratory well. A well drilled to find and produce oil or gas in an
unproved area to find a new reservoir in a field previously found to be
productive of oil or natural gas in another reservoir or to extend a known
reservoir.

Farm-out arrangement. An agreement whereby the owner of a leasehold or
working interest agrees to assign his interest in certain specific acreage
to an assignee, retaining some interest, such as an overriding royalty
interest, subject to the drilling of one (1) or more wells or other
specified performance by the assignee.

Field. An area consisting of a single reservoir or multiple reservoirs
all grouped on or related to the same individual geological structural
feature and/or stratigraphic condition.

Mcf. One thousand cubic feet.

Oil. Crude oil, condensate and natural gas liquids.

Overriding royalty interest. Interests that are carved out of a
working interest, and their duration is limited by the term of the lease
under which they are created.

Present value and PV-10 Value. When used with respect to oil and
natural gas reserves, the estimated future net revenue to be generated from
the production of proved reserves, determined in all material respects in
accordance with the rules and regulations of the SEC (generally using
prices and costs in effect as of the date indicated) without giving effect
to non-property related expenses such as general and administrative
expenses, debt service and future income tax expenses or to depreciation,
depletion and amortization, discounted using an annual discount rate of
10%.



Production costs. Costs incurred to operate and maintain wells and
related equipment and facilities, including depreciation and applicable
operating costs of support equipment and facilities and other costs of
operating and maintaining those wells and related equipment and facilities.

Proved Area. The part of a property to which proved reserves have been
specifically attributed.

Proved developed oil and gas reserves. Reserves that can be expected
to be recovered from existing wells with existing equipment and operating
methods.

Proved properties. Properties with proved reserves.

Proved oil and gas reserves. The estimated quantities of crude oil,
natural gas, and natural gas liquids with geological and engineering data
that demonstrate with reasonable certainty to be recoverable in future
years from known reservoirs under existing economic and operating
conditions, i.e., prices and costs as of the date the estimate is made.

Proved undeveloped reserves. Reserves that are expected to be
recovered from new wells on undrilled acreage, or from existing wells where
a relatively major expenditure is required for recompletion.

Reservoir. A porous and permeable underground formation containing a
natural accumulation of producible oil or gas that is confined by
impermeable rock or water barriers and is individual and separate from
other reservoirs.

Royalty interest. An interest in an oil and natural gas property
entitling the owner to a share of oil or natural gas production free of
costs of production.

Working interest. The operating interest that gives the owner the
right to drill, produce and conduct operating activities on the property
and a share of production.

Workover. Operations on a producing well to restore or increase
production.



Part I


Item 1. Business

General
Southwest Oil & Gas Income Fund XI-A, L.P. (the "Partnership" or
"Registrant") was organized as a Delaware limited partnership on May 5,
1992. The offering of limited partnership interests began on August 20,
1992, as part of a shelf offering registered under the name of Southwest
Oil & Gas 1992-93 Income Program, reached minimum capital requirements on
March 17, 1993 and concluded April 30, 1993. The Partnership has no
subsidiaries.

The Partnership has acquired interests in producing oil and gas properties
and produced and marketed the crude oil and natural gas produced from such
properties. In most cases, the Partnership purchased royalty or overriding
royalty interests and working interests in oil and gas properties that were
converted into net profits interests or other non-operating interests. The
Partnership purchased either all or part of the rights and obligations
under various oil and gas leases.

The principal executive offices of the Partnership are located at 407 N.
Big Spring, Suite 300, Midland, Texas, 79701. The Managing General Partner
of the Partnership, Southwest Royalties, Inc. (the "Managing General
Partner") and its staff of 81 individuals, together with certain
independent consultants used on an "as needed" basis, perform various
services on behalf of the Partnership, including the selection of oil and
gas properties and the marketing of production from such properties. H. H.
Wommack, III, Chairman, Director, President and Chief Executive Officer of
the Managing General Partner, is also a general partner. The Partnership
has no employees.

Introductory Note - Statement of Financial Accounting Standard No. 143
The Partnership implemented SFAS No. 143 effective January 1, 2003 (See
Note 3 to the Partnership's financial statements).

Introductory Note - Depletion Method
During 2002, the Partnership changed its method of providing for depletion
from the units-of-revenue method to the units-of-production method as
described in Note 4 to the Partnership's financial statements. This change
in depletion method was applied as a cumulative effect of a change in
accounting principle effective as of January 1, 2002.

Principal Products, Marketing and Distribution
The Partnership has acquired and holds royalty interests and working
interests in oil and gas properties located in Alabama, Kansas, Louisiana,
Oklahoma and Texas. All activities of the Partnership are confined to the
continental United States. All oil and gas produced from these properties
is sold to unrelated third parties in the oil and gas business.

The revenues generated from the Partnership's oil and gas activities are
dependent upon the current market for oil and gas. The prices received by
the Partnership for its oil and gas production depend upon numerous factors
beyond the Partnership's control, including competition, economic,
political and regulatory developments and competitive energy sources, and
make it particularly difficult to estimate future prices of oil and natural
gas.



Following is a table of the ratios of revenues received from oil and gas
production for the last three years:

Oil Gas
---- ----
2003 50% 50%
2002 56% 44%
2001 38% 62%

As the table indicates, the Partnership's revenue is almost evenly divided
between its oil and gas production; therefore, Partnership revenues will be
highly dependent upon the future prices and demands for oil and gas.

Seasonality of Business
Although the demand for natural gas can be effected by seasonality, with
higher demand in the colder winter months and in very hot summer months,
the Partnership has not experienced material price and volume changes due
to seasonality and has been able to sell all of its natural gas, either
through contracts in place or on the spot market at the then prevailing
spot market price.

Customer Dependence
No material portion of the Partnership's business is dependent on a single
purchaser, or a very few purchasers, where the loss of one would have a
material adverse impact on the Partnership. Five purchasers accounted for
89% of the Partnership's total oil and gas production during 2003:
ConocoPhillips Company for 24%, Sid Richardson Energy Services for 22%,
Duke Energy Field Services LP for 19%, Navajo Refining Company Inc. for 12%
and Chesapeake Operating, Inc. for 12%. Contracts for 2003 with these
major purchasers cover time periods ranging from month to month contracts
up to five-year contract periods. Prices received from these major
purchasers ranged from a low of $26.90 per Bbl to a high of $28.58 per Bbl
and a low of $2.51 per mcf to a high of $4.73 per mcf. Five purchasers
accounted for 86% of the Partnership's total oil and gas production during
2002: Phillips 66 Company for 25%, Sid Richardson Energy Services for 22%,
Duke Energy Field Services LP for 14%, Chesapeake Operating Inc. for 13%
and Navajo Refining Co., Inc. for 12%. Contracts for 2002 with these major
purchasers cover time periods ranging from month to month contracts up to
five-year contract periods. Prices received from these major purchasers
ranged from a low of $21.46 per Bbl to a high of $22.64 per Bbl and a low
of $1.39 per mcf to a high of $2.75 per mcf. Five purchasers accounted for
85% of the Partnership's total oil and gas production during 2001: Sid
Richardson Energy Services for 26%, Duke Energy Field Services for 17%,
Phillips 66 Company for 17%, Sap Acquisition Corporation for 15%, and
Navajo Refining Company, Inc. for 10%. Contracts for 2001 with these major
purchasers cover time periods ranging from month to month contracts up to
five-year contract periods. Prices received from these major purchasers
ranged from a low of $24.20 per Bbl to a high of $24.90 per Bbl and a low
of $3.69 per mcf to a high of $4.56 per mcf. All purchasers of the
Partnership's oil and gas production are unrelated third parties. In the
event any of these purchasers were to discontinue purchasing the
Partnership's production, the Managing General Partner believes that a
substitute purchaser or purchasers could be located without undue delay.
No other purchaser accounted for an amount equal to or greater than 10% of
the Partnership's sales of oil and gas production.

Competition
Because the Partnership has utilized all of its funds available for the
acquisition of interests in producing oil and gas properties or drilling
operations, it is not subject to competition from other oil and gas
property purchasers. See Item 2, Properties.

Factors that may adversely affect the Partnership include delays in
completing arrangements for the sale of production, availability of a
market for production, rising operating costs of producing oil and gas and
complying with applicable water and air pollution control statutes,
increasing costs and difficulties of transportation, and marketing of
competitive fuels. Moreover, domestic oil and gas must compete with
imported oil and gas and with coal, atomic energy, hydroelectric power and
other forms of energy.

Regulation

Oil and Gas Production - The production and sale of oil and gas is subject
to federal and state governmental regulation in several respects, such as
existing price controls on natural gas and possible price controls on crude
oil, regulation of oil and gas production by state and local governmental
agencies, pollution and environmental controls and various other direct and
indirect regulation. Many jurisdictions have periodically imposed
limitations on oil and gas production by restricting the rate of flow for
oil and gas wells below their actual capacity to produce and by imposing
acreage limitations for the drilling of wells. The federal government has
the power to permit increases in the amount of oil imported from other
countries and to impose pollution control measures. Various aspects of the
Partnership's oil and gas activities are regulated by administrative
agencies under statutory provisions of the states where such activities are
conducted and by certain agencies of the federal government for operations
on Federal leases. The regulatory burden on the oil and gas industry
increases the Partnership's cost of doing business, and, consequently,
affects its profitability.

Regulation of Sales and Transportation of Natural Gas. Our sales of
natural gas are affected by the availability, terms and cost of
transportation. The price and terms for access to pipeline transportation
are subject to extensive regulation. In recent years, the FERC has
undertaken various initiatives to increase competition within the natural
gas industry. As a result of initiatives like FERC Order No. 636, issued in
April 1992, the interstate natural gas transportation and marketing system
has been substantially restructured to remove various barriers and
practices that historically limited non-pipeline natural gas sellers,
including producers, from effectively competing with interstate pipelines
for sales to local distribution companies and large industrial and
commercial customers. The most significant provisions of Order No. 636
require that interstate pipelines provide firm and interruptible
transportation service on an open access basis that is equal for all
natural gas supplies. In many instances, the results of Order No. 636 and
related initiatives have been to substantially reduce or eliminate the
interstate pipelines' traditional role as wholesalers of natural gas in
favor of providing only storage and transportation services. While the
United States Court of Appeals upheld most of Order No. 636, certain
related FERC orders, including the individual pipeline restructuring
proceedings, are still subject to judicial review and may be reversed or
remanded in whole or in part. While the outcome of these proceedings cannot
be predicted with certainty, we do not believe that we will be affected
materially differently than its competitors.

The FERC has also announced several important transportation-related policy
statements and proposed rule changes, including a statement of policy and a
request for comments concerning alternatives to its traditional cost-of-
service rate making methodology to establish the rates interstate pipelines
may charge for their services. A number of pipelines have obtained FERC
authorization to charge negotiated rates as one such alternative. In
February 1997, the FERC announced a broad inquiry into issues facing the
natural gas industry to assist the FERC in establishing regulatory goals
and priorities in the post-Order No. 636 environment. Similarly, the Texas
Railroad Commission has been reviewing changes to its regulations governing
transportation and gathering services provided by intrastate pipelines and
gatherers. While the changes being considered by these federal and state
regulators would affect us only indirectly, they are intended to further
enhance competition in natural gas markets. We cannot predict what further
action the FERC or state regulators will take on these matters, however, we
do not believe that it will be affected by any action taken materially
differently than other natural gas producers with which it competes.

Additional proposals and proceedings that might affect the natural gas
industry are pending before Congress, the FERC, state commissions and the
courts. The natural gas industry historically has been very heavily
regulated; therefore, there is no assurance that the less stringent
regulatory approach recently pursued by the FERC and Congress will
continue.

Oil Price Controls and Transportation Rates. Sales of crude oil, condensate
and gas liquids by us are not currently regulated and are made at market
prices. The price we receive from the sale of these products may be
affected by the cost of transporting the products to market.

Environmental and Health Controls. Extensive federal, state and local
regulatory and common laws regulating the discharge of materials into the
environment or otherwise relating to the protection of the environment
affect our oil and natural gas operations. Numerous governmental
departments issue rules and regulations to implement and enforce such laws,
which are often difficult and costly to comply with and which carry
substantial civil and even criminal penalties for failure to comply. Some
laws, rules and regulations relating to protection of the environment may,
in certain circumstances, impose strict liability for environmental
contamination, rendering a person liable for environmental damages and
cleanup costs without regard to negligence or fault on the part of such
person. Other laws, rules and regulations may restrict the rate of oil and
natural gas production below the rate that would otherwise exist or even
prohibit exploration and production activities in sensitive areas. In
addition, state laws often require various forms of remedial action to
prevent pollution, such as closure of inactive pits and plugging of
abandoned wells. The regulatory burden on the oil and natural gas industry
increases our cost of doing business and consequently affects our
profitability. We believe that we are in substantial compliance with
current applicable environmental laws and regulations and that continued
compliance with existing requirements will not have a material adverse
impact on our operations. However, environmental laws and regulations have
been subject to frequent changes over the years, and the imposition of more
stringent requirements could have a material adverse effect upon our
capital expenditures, earnings or competitive position. Additionally,
given the intense litigation environment in the United States, a threat
exists of lawsuits alleging personal injury and property damage from
environmental contamination alleged to be created by us or related
entities. Potential liability in such lawsuits can include not only
compensatory, but substantial punitive damages as well. We are not aware
of any such suits currently pending or threatened.


The Comprehensive Environmental Response, Compensation and Liability Act
("CERCLA"), also known as the "Superfund" law, imposes liability, without
regard to fault on certain classes of persons that are considered to be
responsible for the release of a "hazardous substance" into the
environment. These persons include the current or former owner or operator
of the disposal site or sites where the release occurred and companies that
disposed or arranged for the disposal of hazardous substances. Under CERCLA
such persons may be subject to joint and several liability for the costs of
investigating and cleaning up hazardous substances that have been released
into the environment, for damages to natural resources and for the costs of
certain health studies. In addition, companies that incur liability
frequently also confront third party claims because it is not uncommon for
neighboring landowners and other third parties to file claims for personal
injury and property damage allegedly caused by hazardous substances or
other pollutants released into the environment from a polluted site.
Potential liability also exists under CERCLA for natural resource damage.
A Natural Resource Damage Action (NRDA) could result in liability being
assessed for restoration to natural resources.

The Federal Oil Pollution Act of 1990 ("OPA") regulates the release of oil
into water or other areas designated by the statute. A release could
result in our being held responsible for the cost of remediating the
release, OPA specified damages and natural resource damages. The extent of
such liability could be extensive. A release of oil in harmful quantities
or other materials into water or other specified areas could also result in
our being held responsible under the Clean Water Act ("CWA") for the costs
of remediation, and any civil and criminal fines and penalties.

The Federal Solid Waste Disposal Act, as amended by the Resource
Conservation and Recovery Act of 1976 ("RCRA"), regulates the generation,
transportation, storage, treatment and disposal of solid and hazardous
wastes and can require cleanup of abandoned hazardous waste disposal sites
as well as waste management areas operating facilities. RCRA currently
excludes drilling fluids, produced waters and other wastes associated with
the exploration, development or production of oil and natural gas from
regulation as "hazardous waste." Disposal of such non-hazardous oil and
natural gas exploration, development and production wastes usually are
regulated by state law. Other wastes handled at exploration and production
sites or used in the course of providing well services may not fall within
this exclusion. Moreover, stricter standards for waste handling and
disposal may be imposed on the oil and natural gas industry in the future.
From time to time legislation is proposed in Congress that would revoke or
alter the current exclusion of exploration, development and production
wastes from the RCRA definition of "hazardous wastes" thereby potentially
subjecting such wastes to more stringent handling, disposal and cleanup
requirements. If such legislation were enacted it could have a significant
impact on the operating costs of Southwest and Sierra, as well as the oil
and natural gas industry and well servicing industry in general. The impact
of future revisions to environmental laws and regulations cannot be
predicted. In addition, if our operations were to trigger regulation under
RCRA, we could be required to satisfy certain financial criteria to ensure
financial ability to comply with RCRA regulations. Proof of financial
responsibility could be required in the form of dedicated trust funds,
irrevocable letters of credit, posting of bonds, etc.

The Federal Clean Water Act ("CWA") contains provisions that may result in
the imposition of certain water pollution control requirements with respect
to water releases from our operations. We may be required to incur certain
capital expenditures in the next several years for water pollution control
equipment in connection with obtaining and maintaining National Pollutant
Discharge Elimination Systems ("NPDES") permits. However, we believe our
operations will not be materially adversely affected by any such
requirements, and the requirements are not expected to be any more
burdensome to us than to other similarly situated companies involved in oil
and natural gas exploration and production activities or well surfacing
activities.

Our operations are also subject to the federal Clean Air Act ("CAA") and
comparable state and local requirements. Amendments to the CAA were adopted
in 1990 and contain provisions that may result in the gradual imposition of
certain pollution control requirements with respect to air emissions from
our operations. We may be required to incur certain capital expenditures in
the next several years for air pollution control equipment in connection
with obtaining and maintaining operating permits and approvals for air
emissions. However, we believe our operations will not be materially
adversely affected by any such requirements, and the requirements are not
expected to be any more burdensome to us than to other similarly situated
companies involved in oil and natural gas exploration and production
activities or well servicing activities.

We maintain insurance against "sudden and accidental" occurrences, which
may cover some, but not all, of the environmental risks described above.
Most significantly, the insurance we maintain will not cover the risks
described above which occur over a sustained period of time. Further, there
can be no assurance that such insurance will continue to be available to
cover all such costs or that such insurance will be available at premium
levels that justify its purchase. The occurrence of a significant event
not fully insured or indemnified against could have a material adverse
effect on our financial condition and operations.

Limited partners should be aware that the assessment of liability
associated with environmental liabilities is not always correlated to the
value of a particular project. Accordingly, liability associated with the
environment under local, state, or federal regulations, particularly clean
ups under CERCLA, can exceed the value of our investment in the associated
site.


Regulation of Oil and Natural Gas Exploration and Production. Our
exploration and production operations are subject to various types of
regulation at the federal, state and local levels. Such regulations
include requiring permits and drilling bonds for the drilling of wells,
regulating the location of wells, the method of drilling and casing wells,
and the surface use and restoration of properties upon which wells are
drilled. Many states also have statutes or regulations addressing
conservation matters, including provisions for the utilization or pooling
of oil and natural gas properties, the establishment of maximum rates of
production from oil and natural gas wells and the regulation of spacing,
plugging and abandonment of such wells. Some state statutes limit the rate
at which oil and natural gas can be produced from our properties.

Partnership Employees
The Partnership has no employees; however, the Managing General Partner has
a staff of geologists, engineers, accountants, landmen and clerical staff
who engage in Partnership activities and operations and perform additional
services for the Partnership as needed. In addition to the Managing
General Partner's staff, the Partnership engages independent consultants
such as petroleum engineers and geologists as needed. As of December 31,
2003, there were 81 individuals directly employed by the Managing General
Partner in various capacities.

Item 2. Properties

In determining whether an interest in a particular producing property was
to be acquired, the Managing General Partner considered such criteria as
estimated oil and gas reserves, estimated cash flow from the sale of
production, present and future prices of oil and gas, the extent of
undeveloped and unproved reserves, the potential for secondary, tertiary
and other enhanced recovery projects and the availability of markets.

As of December 31, 2003, the Partnership possessed an interest in oil and
gas properties located in Escambia and Lamar Counties of Alabama; Labette
and Neosho Counties of Kansas; Pointe Coupe and Terrebonne Parishes of
Louisiana; Custer, Roger Mills and Washita Counties of Oklahoma; and
Dickens, Hemphill, Live Oak, Upton, Ward, Winkler and Yoakum Counties of
Texas. These properties consist of various interests in 91 wells and
units.

Due to the Partnership's objective of maintaining current operations
without engaging in the drilling of any developmental or exploratory wells,
or additional acquisitions of producing properties, there have not been any
significant changes in properties during 2003, 2002 and 2001.

During 2003, three leases were sold for approximately $43,700. There were
no property sales during 2002 and 2001.


Significant Properties
The following table reflects the significant properties in which the
Partnership has an interest:

Date
Purchased No. of Proved Reserves*
Name and and Wells Oil Gas
Location Interest (bbls) (mcf)
- ---------------- ----------- -------- -------- --------
- ---------- ------ ------- ------
Custer & Wright 11/94 at 28 7,000 49,000
Winkler County, 1% to 18% 7,000(1) 49,000(1
)
Texas working
interest

Elizabeth 10/94 at 1 - 79,000
Windham 17%
Upton County, working -(1) 79,000(1
interest )
Texas

Webb Lease 5/94 at 4 31,000 9,000
12.5%
Yoakum County, working 31,000(1 9,000(1)
interest )
Texas

(1)Amounts represent proved developed reserves from currently producing
zones.

*Ryder Scott Company, L.P. prepared the reserve and present value data for
the Partnership's existing properties as of January 1, 2004. The reserve
estimates were made in accordance with guidelines established by the
Securities and Exchange Commission pursuant to Rule 4-10(a) of Regulation S-
X. Such guidelines require oil and gas reserve reports be prepared under
existing economic and operating conditions with no provisions for price and
cost escalation except by contractual arrangements.

Oil price adjustments were made in the individual evaluations to reflect
oil quality, gathering and transportation costs. The results of the reserve
report as of January 1, 2004 are an average price of $30.30 per barrel.

Gas price adjustments were made in the individual evaluations to reflect
BTU content, gathering and transportation costs and gas processing and
shrinkage. The results of the reserve report as of January 1, 2004 are an
average price of $5.36 per Mcf.

As also discussed in Part II, Item 7, Management's Discussion and Analysis
of Financial Condition and Results of Operations, oil and gas prices were
subject to frequent changes in 2003.


The evaluation of oil and gas properties is not an exact science and
inevitably involves a significant degree of uncertainty, particularly with
respect to the quantity of oil or gas that any given property is capable of
producing. Estimates of oil and gas reserves are based on available
geological and engineering data, the extent and quality of which may vary
in each case and, in certain instances, may prove to be inaccurate.
Consequently, properties may be depleted more rapidly than the geological
and engineering data have indicated.

Unanticipated depletion, if it occurs, will result in lower reserves than
previously estimated; thus an ultimately lower return for the Partnership.
Basic changes in past reserve estimates occur annually. As new data is
gathered during the subsequent year, the engineer must revise his earlier
estimates. A year of new information, which is pertinent to the estimation
of future recoverable volumes, is available during the subsequent year
evaluation. In applying industry standards and procedures, the new data
may cause the previous estimates to be revised. This revision may increase
or decrease the earlier estimated volumes. Pertinent information gathered
during the year may include actual production and decline rates, production
from offset wells drilled to the same geologic formation, increased or
decreased water production, workovers, and changes in lifting costs, among
others. Accordingly, reserve estimates are often different from the
quantities of oil and gas that are ultimately recovered.

The Partnership has reserves, which are classified as proved developed and
proved undeveloped. All of the proved reserves are included in the
engineering reports, which evaluate the Partnership's present reserves.

Because the Partnership does not engage in drilling activities, the
development of proved undeveloped reserves is conducted pursuant to farmout
arrangements with the Managing General Partner or unrelated third parties.
Generally, the Partnership retains a carried interest such as an overriding
royalty interest under the terms of a farm-out.

The Partnership or the owners of properties in which the Partnership owns
an interest can engage in workover projects or supplementary recovery
projects, for example, to extract behind the pipe reserves. See Part II,
Item 7, Management's Discussion and Analysis of Financial Condition and
Results of Operations.

Item 3. Legal Proceedings

There are no material pending legal proceedings to which the Partnership is
a party.

Item 4. Submission of Matters to a Vote of Security Holders

No matter was submitted to a vote of security holders during the fourth
quarter of 2003 through the solicitation of proxies or otherwise.



Part II


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

Market Information
Limited partnership interest, or units, in the Partnership were initially
offered and sold for a price of $500. Limited partner units are not traded
on any exchange and there is no public or organized trading market for
them. Further, a transferee may not become a substitute limited partner
without the consent of the Managing General Partner.

The Managing General Partner has the right, but not the obligation in
accordance with the obligations set forth in the partnership agreement, to
purchase limited partnership units should an investor desire to sell. The
value of the unit is determined by adding the sum of (1) current assets
less liabilities and (2) the present value of the future net revenues
attributable to proved reserves and by discounting the future net revenues
at a rate not in excess of the prime rate charged by NationsBank, N.A. of
Midland, Texas plus one percent (1%), which value shall be further reduced
by a risk factor discount of no more than one-third (1/3) to be determined
by the Managing General Partner in its sole and absolute discretion under
the partnership agreement.

Issuer Purchases of Equity Securities

Maximum
Total Number (or
Number
of Units Approximat
e
Purchased Value) of
as Units
Part of that May
Publicly Yet Be
Total Announced Purchased
Number
of Units Average Plans or Under the
Price Plans
Period(1) Purchased Paid Per Programs or
Unit Programs
October 1-
31,
2003 - $ - - N/A
November 1-
30,
2003 - - - N/A
December 1-
31,
2003 - - - N/A
TOTALS - $ -

(1) There were no repurchases in 2003 and 2002, by the Managing General
Partner from limited partners. In 2001, 10 limited partner units were
tendered to and purchased by the Managing General Partner at an average
base price of $115.65 per unit. These repurchases were part of the
obligations under the partnership agreement.

Number of Limited Partner Interest Holders
As of December 31, 2003, there were 119 holders of limited partner units in
the Partnership.

Distributions
Pursuant to Article III, Section 3.05 of the Partnership's Certificate and
Agreement of Limited Partnership, "Net Cash Flow" shall be distributed to
the partners on a quarterly basis. "Net Cash Flow" is defined as "the cash
generated by the Partnership's investments in producing oil and gas
properties, less (i) General and Administrative Costs, (ii) Direct Costs,
(iii) Operating Costs, and (iv) any reserves necessary to meet current and
anticipated needs of the Partnership, as determined in the sole discretion
of the Managing General Partner."

During 2003, distributions were made totaling $93,096, with $85,842
distributed to the limited partners and $7,254 to the general partners.
For the year ended December 31, 2003, distributions of $30.43 per limited
partner unit were made, based upon 2,821 limited partner units outstanding.
During 2002, distributions were made totaling $33,047, with $29,742
distributed to the limited partners and $3,305 to the general partners.
For the year ended December 31, 2002, distributions of $10.54 per limited
partner unit were made, based upon 2,821 limited partner units outstanding.
During 2001, distributions were made totaling $142,545, with $128,291
distributed to the limited partners and $14,254 to the general partners.
For the year ended December 31, 2001, distributions of $45.48 per limited
partner unit were made, based upon 2,821 limited partner units outstanding.


Item 6. Selected Financial Data

The following selected financial data for the years ended December 31 2003,
2002, 2001, 2000 and 1999 should be read in conjunction with the financial
statements included in Item 8:

Years ended December 31,
-----------------------------------------
2003 2002 2001 2000 1999
---- ---- ---- ---- ----
Revenues $ 169,184 148,933 185,829 271,132 195,559

Net income (loss) from 33,262 36,123 7,787 152,601 51,276
continuing operations

Results from discontinued 16,231 5,381 21,505 11,139 687
operations

Net income before
cumulative effect
of accounting changes 49,493 41,504 29,292 163,740 51,963

Net income 43,768 42,504 29,292 163,740 51,963

Partners' share of
net income:

General partner 6,246 6,227 8,029 17,874 8,296

Limited partners 37,522 36,277 21,263 145,866 43,667

Limited partners' net
income (loss) per unit
before discontinued
operations and
cumulative effects of 10.06
accounting changes 10.90 1.07 48.23 15.37

Discontinued operations
per limited
partner unit 5.07 .11
1.57 6.47 3.48

Limited partners'
net income per unit 13.30 7.54
12.82 51.71 15.48

Limited partners'
cash distribution
per unit 30.43
10.54 45.48 33.54 35.77

Total assets $ 266,280 256,511 249,773 360,261 301,651




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

General
Southwest Oil & Gas Income Fund XI-A, L.P. (the "Partnership" or
"Registrant") was organized as a Delaware limited partnership on May 5,
1992. The offering of limited partnership interests began on August 20,
1992 as part of a shelf offering registered under the name of Southwest Oil
& Gas 1992-93 Income Program. Minimum capital requirements for the
Partnership were met on March 17, 1993 and the Offering Period terminated
April 30, 1993 with 120 limited partners purchasing 2,821 units for
$1,410,500.

The Partnership was formed to acquire producing oil and gas properties, to
produce and market crude oil and natural gas produced from such properties
and to distribute any net proceeds from operations to the general and
limited partners. Net revenues from producing oil and gas properties will
not be reinvested in other revenue producing assets except to the extent
that producing facilities and wells are reworked or where methods are
employed to improve or enable more efficient recovery of oil and gas
reserves. The economic life of the Partnership will thus depend on the
period over which the Partnership's oil and gas reserves are economically
recoverable.

Increases or decreases in Partnership revenues and, therefore,
distributions to partners will depend primarily on changes in the prices
received for production, changes in volumes of production sold, lease
operating expenses, enhanced recovery projects, offset drilling activities
pursuant to farm-out arrangements and on the depletion of wells. Since
wells deplete over time, production can generally be expected to decline
from year to year.

Well operating costs and general and administrative costs usually decrease
with production declines; however, these costs may not decrease
proportionately. Net income available for distribution to the limited
partners is therefore expected to decline in later years based on these
factors.

Based on current conditions, management anticipates performing no workovers
during 2004 to enhance production. The partnership will most likely
continue to experience the historical production decline, which has
approximated 9% per year. Accordingly, if commodity prices remain
unchanged, the Partnership expects future earnings to decline due to
anticipated production declines.

Critical Accounting Policies
Full cost ceiling calculations The Partnership follows the full cost method
of accounting for its oil and gas properties. The full cost method
subjects companies to quarterly calculations of a "ceiling", or limitation
on the amount of properties that can be capitalized on the balance sheet.
If the Partnership's capitalized costs are in excess of the calculated
ceiling, the excess must be written off as an expense.

The Partnership's discounted present value of its proved oil and natural
gas reserves is a major component of the ceiling calculation, and
represents the component that requires the most subjective judgments.
Estimates of reserves are forecasts based on engineering data, projected
future rates of production and the timing of future expenditures. The
process of estimating oil and natural gas reserves requires substantial
judgment, resulting in imprecise determinations, particularly for new
discoveries. Different reserve engineers may make different estimates of
reserve quantities based on the same data. The Partnership's reserve
estimates are prepared by outside consultants.

The passage of time provides more qualitative information regarding
estimates of reserves, and revisions are made to prior estimates to reflect
updated information. However, there can be no assurance that more
significant revisions will not be necessary in the future. If future
significant revisions are necessary that reduce previously estimated
reserve quantities, it could result in a full cost property writedown. In
addition to the impact of these estimates of proved reserves on calculation
of the ceiling, estimates of proved reserves are also a significant
component of the calculation of DD&A.

While the quantities of proved reserves require substantial judgment, the
associated prices of oil and natural gas reserves that are included in the
discounted present value of the reserves do not require judgment. The
ceiling calculation dictates that prices and costs in effect as of the last
day of the period are generally held constant indefinitely. Because the
ceiling calculation dictates that prices in effect as of the last day of
the applicable quarter are held constant indefinitely, the resulting value
is not indicative of the true fair value of the reserves. Oil and natural
gas prices have historically been cyclical and, on any particular day at
the end of a quarter, can be either substantially higher or lower than the
Partnership's long-term price forecast that is a barometer for true fair
value.


In 2002, the Partnership changed methods of accounting for depletion of
capitalized costs from the units-of-revenue method to the units-of-
production method. The newly adopted accounting principle is preferable in
the circumstances because the units-of-production method results in a
better matching of the costs of oil and gas production against the related
revenue received in periods of volatile prices for production as have been
experienced in recent periods. Additionally, the units-of-production
method is the predominant method used by full cost companies in the oil and
gas industry, accordingly, the change improves the comparability of the
Partnership's financial statements with its peer group.

Results of Operations

A. General Comparison of the Years Ended December 31, 2003 and 2002

The following table provides certain information regarding performance
factors for the years ended December 31, 2003 and 2002:

Year Ended Percenta
ge
December 31, Increase
2003 2002 (Decreas
e)
---- ---- --------
-
Average price per $ 28.81 17%
barrel of oil 24.55
Average price per mcf $ 4.81 66%
of gas 2.89
Oil production in 2,900 3,300 (12%)
barrels
Gas production in mcf 17,600 22,900 (23%)
Oil and gas revenue $ 167,923 147,566 14%
Production expense $ 91,646 77,047 19%
Partnership $ 93,096 33,047 182%
distributions
Limited partner $ 85,842 29,742 189%
distributions
Per unit distribution $ 30.43 189%
to limited partners 10.54

Number of limited 2,821 2,821
partner units

Revenues

The Partnership's oil and gas revenues increased to $167,923 from $147,566
for the years ended December 31, 2003 and 2002, respectively, an increase
of 14%. The principal factors affecting the comparison of the years ended
December 31, 2003 and 2002 are as follows:

1. The average price for a barrel of oil received by the Partnership
increased during the year ended December 31, 2003 as compared to the
year ended December 31, 2002 by 17%, or $4.26 per barrel, resulting in
an increase of approximately $12,400 in revenues. Oil sales
represented 50% of total oil and gas sales during the year ended
December 31, 2003 as compared to 55% during the year ended December 31,
2002.

The average price for an mcf of gas received by the Partnership
increased during the same period by 66%, or $1.92 per mcf, resulting in
an increase of approximately $33,800 in revenues.

The total increase in revenues due to the change in prices received
from oil and gas production is approximately $46,200. The market price
for oil and gas has been extremely volatile over the past decade and
management expects a certain amount of volatility to continue in the
foreseeable future.


2. Oil production decreased approximately 400 bbls or 12% during the year
ended December 31, 2003 as compared to the year ended December 31,
2002, resulting in a decrease of approximately $9,800 in revenues.

Gas production decreased approximately 5,300 mcfs or 23% during the
same period, resulting in a decrease of approximately $15,300 in
revenues.

The total decrease in revenues due to the change in production is
approximately $25,100. The decrease in production is due primarily to
the sale of three leases during 2003, which represented a difference of
approximately 330 bbls and 3,500 mcfs from 2002.

Costs and Expenses

Total costs and expenses increased to $135,922 from $112,810 for the years
ended December 31, 2003 and 2002, respectively, an increase of 20%. The
increase is the result of lower depletion expense, partially offset by an
increase in general administrative costs, lease operating expense and
accretion expense.

1. Lease operating costs and production taxes were 19% higher, or
approximately $14,600 more during the year ended December 31, 2003 as
compared to the year ended December 31, 2002. The increase in lease
operating costs is due primarily to a workover performed on a non-operated
lease during 2003 and an increase in production taxes due to an increase in
oil and gas commodity prices.

2. General and administrative costs consist of independent accounting and
engineering fees, computer services, postage, and Managing General
Partner personnel costs. General and administrative costs increased 35%
or approximately $6,200 during the year ended December 31, 2003 as
compared to the year ended December 31, 2002. The increase in general
and administrative expense is due to an increase in independent
accounting review and audit fees.

3. Depletion expense decreased to $15,690 for the year ended December 31,
2003 from $18,000 for the same period in 2002. This represents a
decrease of 13%. The contributing factor to the decrease in depletion
expense is in relation to the BOE depletion rate for the year ended
December 30, 2003, which was $2.69 applied to 5,822 BOE as compared to
$2.52 applied to 7,133 BOE for the same period.

Cumulative effect of change in accounting principle - SFAS No. 143
On January 1, 2003, the Partnership adopted Statement of Financial
Accounting Standards No. 143, Accounting for Asset Retirement Obligations
("SFAS No. 143"). Adoption of SFAS No. 143 is required for all companies
with fiscal years beginning after June 15, 2002. The new standard requires
the Partnership to recognize a liability for the present value of all legal
obligations associated with the retirement of tangible long-lived assets
and to capitalize an equal amount as a cost of the asset and depreciate the
additional cost over the estimated useful life of the asset. On January 1,
2003, the Partnership recorded additional costs, net of accumulated
depreciation, of approximately $57,971, a long term liability of
approximately $63,696 and a loss of approximately $5,725 for the cumulative
effect on depreciation of the additional costs and accretion expense on the
liability related to expected abandonment costs of its oil and natural gas
producing properties. At December 31, 2003, the asset retirement
obligation was $56,328, and the decrease in the balance from January 1,
2003 is due to the sale of three oil and gas properties, which decreased
the asset retirement obligation by $ 12,150, partially offset by accretion
expense of $4,630 and an addition of one oil and gas property by $152. The
pro forma amounts of the asset retirement obligation as of December 31,
2002, 2001 and 2000, were approximately $63,696, $59,008 and $54,665,
respectively. The pro forma amounts of the asset retirement obligation
were measured using information, assumptions and interest rates as of the
adoption date of January 1, 2003.




Results of Operations

B. General Comparison of the Years Ended December 31, 2002 and 2001

The following table provides certain information regarding performance
factors for the years ended December 31, 2002 and 2001:

Year Ended Percenta
ge
December 31, Increase
2002 2001 (Decreas
e)
---- ---- --------
-
Average price per $ 24.55 13%
barrel of oil 21.63
Average price per mcf $ 2.89 (27%)
of gas 3.95
Oil production in 3,300 3,300 -
barrels
Gas production in mcf 22,900 28,700 (20%)
Oil and gas revenue $ 147,566 184,858 (20%)
Production expense $ 77,047 120,789 (36%)
Partnership $ 33,047 142,545 (77%)
distributions
Limited partner $ 29,742 128,291 (77%)
distributions
Per unit distribution $ 10.54 (77%)
to limited partners 45.48

Number of limited 2,821 2,821
partner units

Revenues

The Partnership's oil and gas revenues decreased to $147,566 from $184,858
for the years ended December 31, 2002 and 2001, respectively, a decrease of
20%. The principal factors affecting the comparison of the years ended
December 31, 2002 and 2001 are as follows:

1. The average price for a barrel of oil received by the Partnership
increased during the year ended December 31, 2002 as compared to the
year ended December 31, 2001 by 13%, or $2.92 per barrel, resulting in
an increase of approximately $9,600 in revenues. Oil sales represented
55% of total oil and gas sales during the year ended December 31, 2002
as compared to 39% during the year ended December 31, 2001.

The average price for an mcf of gas received by the Partnership
decreased during the same period by 27%, or $1.06 per mcf, resulting in
a decrease of approximately $24,300 in revenues.

The net total decrease in revenues due to the change in prices received
from oil and gas production is approximately $14,700. The market price
for oil and gas has been extremely volatile over the past decade and
management expects a certain amount of volatility to continue in the
foreseeable future.


2. Oil production remained unchanged during the year ended December 31,
2002 as compared to the year ended December 31, 2001.

Gas production decreased approximately 5,800 mcf or 20% during the same
period, resulting in a decrease of approximately $22,900 in revenues.

The total decrease in revenues due to the change in production is
approximately $22,900. The decrease in gas production is due primarily
to one lease where the wells were shut in during the year, and are now
currently being brought back on.

Costs and Expenses

Total costs and expenses decreased to $112,810 from $178,042 for the years
ended December 31, 2002 and 2001, respectively, a decrease of 37%. The
decrease is the result of lower depletion expense and lease operating
expenses; partially offset by an increase in general administrative costs.

2. Lease operating costs and production taxes were 36% lower, or
approximately $43,700 less during the year ended December 31, 2002 as
compared to the year ended December 31, 2001. The decrease in lease
operating costs is due in part to successful repairs and maintenance, such
as pulling expense on two leases being performed during 2001 as well as
plug and abandonment expenses incurred on one lease during 2001. The
decline in production taxes is also partially responsible for the decline
in lease operating costs which is directly associated to the decline in
revenues received during the year.

2. General and administrative costs consist of independent accounting and
engineering fees, computer services, postage, and Managing General
Partner personnel costs. General and administrative costs increased 3%
or approximately $500 during the year ended December 31, 2002 as
compared to the year ended December 31, 2001.

3. Depletion expense decreased to $18,000 for the year ended December 31,
2002 from $40,000 for the same period in 2001. This represents a
decrease of 55%. In the fourth quarter of 2002, the Partnership
changed methods of accounting for depletion of capitalized costs from
the units-of-revenue method to the units-of-production method. The
newly adopted accounting principle is preferable in the circumstances
because the units-of-production method results in a better matching of
the costs of oil and gas production against the related revenue
received in periods of volatile prices for production as have been
experienced in recent periods. Additionally, the units-of-production
method is the predominant method used by full cost companies in the oil
and gas industry, accordingly, the change improves the comparability of
the Partnership's financial statements with its peer group. The effect
of this change in method was to increase 2002 depletion expense by
$2,000 and decrease 2002 net income by $1,000. See Note 4 of the notes
to the Partnership's financial statements.

The major factor in the decrease in depletion expense between the
comparative periods was the increase in the price of oil and gas used
to determine the Partnership's reserves for January 1, 2003 as compared
to 2002, which provided more economically recoverable proved reserves
at January 1, 2003 which caused the depletion rate per equivalent unit
produced to decline. Also, as discussed above, the total equivalent
units produced in 2002 declined from 2001.





C. Revenue and Distribution Comparison

Partnership income for the years ended December 31, 2003, 2002 and 2001 was
$43,768, $42,504 and $29,292, respectively. Partnership distributions for
the years ended December 31, 2003, 2002 and 2001 were $93,096, $33,047 and
$142,545, respectively. These differences are indicative of the changes in
oil and gas prices, production and property sales.

The sources for the 2003 distributions of $93,096 were oil and gas
operations of approximately $99,900 and the change in oil and gas
properties of approximately $29,100, resulting in excess cash for
contingencies or subsequent distributions. The sources for the 2002
distributions of $33,047 were oil and gas operations of approximately
$36,500 and the change in oil and gas properties of approximately $600,
resulting in excess cash for contingencies or subsequent distributions.
The sources for the 2001 distributions of $142,545 were oil and gas
operations of approximately $138,400 and the change in oil and gas
properties of approximately $(4,300), with the balance from available cash
on hand at the beginning of the period.

Total distributions during the year ended December 31, 2003 were $93,096 of
which $85,842 was distributed to the limited partners and $7,254 to the
general partners. The per unit distribution to limited partners during the
same period was $30.43. Total distributions during the year ended December
31, 2002 were $33,047 of which $29,742 was distributed to the limited
partners and $3,305 to the general partners. The per unit distribution to
limited partners during the same period was $10.54. Total distributions
during the year ended December 31, 2001 were $142,545 of which $128,291 was
distributed to the limited partners and $14,254 to the general partners.
The per unit distribution to limited partners during the same period was
$45.48.

Cumulative cash distributions of $1,361,013 have been made to the general
and limited partners as of December 31, 2003. As of December 31, 2003,
$1,240,137 or $439.61 per limited partner unit has been distributed to the
limited partners, representing a 88% return of capital contributed.



Liquidity and Capital Resources

The primary source of cash is from operations, the receipt of income from
interests in oil and gas properties. The Partnership knows of no material
change, nor does it anticipate any such change.

Cash flows provided by operating activities were approximately $99,900 in
2003 compared to $36,500 in 2002 and approximately $138,400 in 2001.

Cash flows provided by (used in) investing activities were approximately
$29,100 in 2003 compared to $600 in 2002 and approximately $(4,300) in
2001. The primary source of the 2003 cash flow from investing activities
was the sale of three oil and gas properties.

Cash flows used in financing activities were approximately $93,200 in 2003
compared to $33,000 in 2002 and approximately $142,500 in 2001. The only
use in financing activities was the distributions to partners.

As of December 31, 2003, the Partnership had approximately $50,300 in
working capital. Although the Partnership held many long-lived properties
at inception, because of the restrictions on property development imposed
by the partnership agreement, the Partnership cannot develop its non-
producing properties, if any. Without continued development, the producing
reserves continue to deplete. Accordingly, as the Partnership's properties
have matured and depleted, the net cash flows from operations for the
Partnership has steadily declined, except in periods of substantially
increased commodity pricing. Maintenance of properties and administrative
expenses for the Partnership are increasing relative to production. As the
properties continue to deplete, maintenance of properties and
administrative costs as a percentage of production are expected to continue
to increase.

Liquidity - Managing General Partner

As of December 31, 2003, the Managing General Partner is in violation of
several covenants pertaining to their Amended and Restated Revolving Credit
Agreement due June 1, 2006 and their Senior Second Lien Secured Credit
Agreement due October 15, 2008. Due to the covenant violations, the
Managing General Partner is in default under their Amended and Restated
Revolving Credit Agreement and the Senior Second Lien Secured Credit
Agreement, and all amounts due under these agreements have been classified
as a current liability on the Managing General Partner's balance sheet at
December 31, 2003. The significant working capital deficit and debt being
in default at December 31, 2003, raise substantial doubt about the Managing
General Partner's ability to continue as a going concern.

Subsequent to December 31, 2003, the Board of Directors of the Managing
General Partner announced its decision to explore a merger, sale of the
stock or other transaction involving the Managing General Partner. The
Board has formed a Special Committee of independent directors to oversee
the sales process. The Special Committee has retained independent
financial and legal advisors to work closely with the management of the
Managing General Partner to implement the sales process. There can be no
assurance that a sale of the Managing General Partner will be consummated
or what terms, if consummated, the sale will be on.

Recent Accounting Pronouncements
The EITF is considering two issues related to the reporting of oil and gas
mineral rights. Issue No. 03-O, "Whether Mineral Rights Are Tangible or
Intangible Assets," is whether or not mineral rights are intangible assets
pursuant to SFAS No. 141, "Business Combinations." Issue No. 03-S,
"Application of SFAS No. 142, Goodwill and Other Intangible Assets, to Oil
and Gas Companies," is, if oil and gas drilling rights are intangible
assets, whether those assets are subject to the classification and
disclosure provisions of SFAS No. 142. The Partnership classifies the cost
of oil and gas mineral rights as properties and equipment and believes that
this is consistent with oil and gas accounting and industry practice. The
disclosures required by SFAS Nos. 141 and 142 would be made in the notes to
the financial statements. There would be no effect on the statement of
income or cash flows as the intangible assets related to oil and gas
mineral rights would continue to be amortized under the full cost method of
accounting.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The Partnership is not a party to any derivative or embedded derivative
instruments.


Item 8. Financial Statements and Supplementary Data

Index to Financial Statements

Page

Independent Auditors' Report 22

Balance Sheets 23

Statements of Operations 24

Statement of Changes in Partners Equity 26

Statements of Cash Flows 27

Notes to Financial Statements 29











INDEPENDENT AUDITORS' REPORT

The Partners
Southwest Oil & Gas Income Fund XI-A, L.P.
(A Delaware Limited Partnership):


We have audited the accompanying balance sheets of Southwest Oil & Gas
Income Fund XI-A, L.P. (the "Partnership") as of December 31, 2003 and
2002, and the related statements of operations, changes in partners' equity
and cash flows for each of the years in the three year period ended
December 31, 2003. These financial statements are the responsibility of
the Partnership's management. Our responsibility is to express an opinion
on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally
accepted in the United States of America. 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, the financial statements referred to above present fairly,
in all material respects, the financial position of Southwest Oil & Gas
Income Fund XI-A, L.P. as of December 31, 2003 and 2002 and the results of
its operations and its cash flows for each of the years in the three year
period ended December 31, 2003 in conformity with accounting principles
generally accepted in the United States of America.

As discussed in Note 4 to the financial statements, the Partnership changed
its method of computing depletion in 2002. Also, as discussed in Note 3 to
the financial statements, the Partnership changed its method of accounting
for asset retirement obligations as of January 1, 2003.







KPMG LLP



Midland, Texas
March 19, 2004, except as to Note 10, which is as of May 3, 2004




Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)
Balance Sheets
December 31, 2003 and 2002


2003 2002
---- ----
Assets
- ---------
Current assets:
Cash and cash equivalents $ 53,072 17,179
Receivable from Managing - 24,291
General Partner
Oklahoma withholding 8 -
prepayment
-------- --------
----- -----
Total current assets 53,080 41,470
-------- --------
----- -----
Oil and gas properties -
using the full-
cost method of accounting 1,046,12 1,053,59
6 6
Less accumulated
depreciation,
depletion and 832,926 838,555
amortization
-------- --------
----- -----
Net oil and gas 213,200 215,041
properties
-------- --------
----- -----
$ 266,280 256,511
======= =======

Liabilities and Partners'
Equity
- ----------------------------
- ------------

Current liabilities:
Payable to Managing General $ 2,815 -
Partner
Distribution payable - 46
-------- --------
----- -----
Total current liabilities 2,815 46
-------- --------
----- -----

Asset retirement obligation 56,328 -
-------- --------
----- -----

Partners' equity:
General partners (5,046) (4,038)
Limited partners 212,183 260,503
-------- --------
----- -----
Total partners' equity 207,137 256,465
-------- --------
----- -----
$ 266,280 256,511
======= =======




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


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)
Statements of Operations
Years ended December 31, 2003, 2002 and 2001

2003 2002 2001
---- ---- ----
Revenues
- -------------
Oil and gas revenues $ 167,923 147,566 184,858
Interest income from 228 131 971
operations
Other 1,033 1,236 -
-------- -------- --------
-- -- --
169,184 148,933 185,829
-------- -------- --------
-- -- --
Expenses
- ------------
Production 91,646 77,047 120,817
General and administrative 23,956 17,763 17,225
Accretion of asset retirement 4,630 - -
obligation
Depreciation, depletion and 15,690 18,000 40,000
amortization
-------- -------- --------
-- -- --
135,922 112,810 178,042
-------- -------- --------
-- -- --
Net income (loss) from 33,262 36,123 7,787
continuing operations

Results from discontinued
operations -
sale of oil and gas lease - 16,231 5,381 21,505
See Note 5
-------- -------- --------
-- -- --
Net income before cumulative
effects
of accounting changes 49,493 41,504 29,292

Cumulative effect of change in
accounting
principle - SFAS No. 143 - (5,725) - -
See Note 3
Cumulative effect of change in
accounting principle
- change in depletion method - 1,000 -
- - See Note 4
-------- -------- --------
-- -- --
Net income $ 43,768 42,504 29,292
====== ====== ======
(continu
ed)


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)
Statements of Operations
Years ended December 31, 2003, 2002 and 2001

2003 2002 2001
---- ---- ----
Net income allocated to:

Managing General Partner $ 5,621 5,604 7,226
====== ====== ======
General Partner $ 625 623 803
====== ====== ======
Limited partners $ 37,522 36,277 21,263
====== ====== ======
Per limited partner unit
before discontinued
operations and cumulative $ 10.06 1.07
effects 10.90
Discontinued operations per 5.07
limited partner unit 1.57 6.47
Cumulative effects per (1.83) .35 -
limited partner unit
-------- -------- --------
-- -- --
Per limited partner unit $ 13.30 12.82
7.54
====== ====== ======
Pro forma amounts assuming
changes are applied
retroactively (See Notes 3
and 4 for details):
Net income before cumulative $ - 36,816 39,949
effects
====== ====== ======
Per limited partner unit $ -
(2,821.0 units) 10.97 11.47
====== ====== ======


























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


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)
Statement of Changes in Partners' Equity
Years ended December 31, 2003, 2002 and 2001

General Limited
Partners Partners Total
-------- -------- -----
Balance at December 31, 2000 $ (735) 360,996 360,261

Net income 8,029 21,263 29,292

Distributions (14,254) (128,291 (142,545
) )
-------- -------- --------
-- --- ---
Balance at December 31, 2001 (6,960) 253,968 247,008

Net income 6,227 36,277 42,504

Distributions (3,305) (29,742) (33,047)
-------- -------- --------
-- --- ---
Balance at December 31, 2002 (4,038) 260,503 256,465

Net income 6,246 37,522 43,768

Distributions (7,254) (85,842) (93,096)
-------- -------- --------
-- --- ---
Balance at December 31, 2003 $ (5,046) 212,183 207,137
====== ======= ======
























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


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)
Statements of Cash Flows
Years ended December 31, 2003, 2002 and 2001

2003 2002 2001
---- ---- ----
Cash flows from operating
activities:

Oil and gas revenue $ 177,656 137,491 228,811
Cash paid to Managing General
Partner
for production expense,
administrative
fees and general and (95,228) (107,745 (112,897
administrative overhead ) )
Discontinued operations 16,231 5,381 21,505
Interest received 228 131 971
Miscellaneous settlement 1,033 1,236 -
-------- -------- --------
--- ---- ----
Net cash provided by 99,920 36,494 138,390
operating activities
-------- -------- --------
--- ---- ----
Cash flows used in investing
activities:
Additions to oil and gas (14,564) (438) (4,321)
properties
Sale of oil and gas 43,688 1,031 -
properties
-------- -------- --------
--- ---- ----
Net cash provided by (used
in) in
investing activities 29,124 593 (4,321)
-------- -------- --------
--- ---- ----
Cash flows used in financing
activities:
Partner distributions (93,151) (33,047) (142,499
)
-------- -------- --------
--- ---- ----
Net increase (decrease) in
cash and cash
equivalents 35,893 4,040 (8,430)

Beginning of period 17,179 13,139 21,569
-------- -------- --------
--- ---- ----
End of period $ 53,072 17,179 13,139
====== ======= =======
(continu
ed)























Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)
Statements of Cash Flows
Years ended December 31, 2003, 2002 and 2001 (continued)

2003 2002 2001
---- ---- ----
Reconciliation of net income
to net
cash provided by operating
activities:

Net income $ 43,768 42,504 29,292
Adjustments to reconcile net
income to
net cash provided by
operating activities:
Depreciation, depletion and 15,690 18,000 40,000
amortization
Accretion of asset retirement 4,630 - -
obligation
Cumulative effect of change 5,725 (1,000) -
in accounting principle
Decrease (increase) in 9,733 (10,075) 43,953
receivables
Increase (decrease) in 20,374 (12,935) 25,145
payables
-------- -------- --------
--- ---- ----
Net cash provided by operating $ 99,920 36,494 138,390
activities
====== ======= =======
Noncash investing and
financing activities:
Increase in oil and gas
properties - Adoption
of SFAS No. 143 $ 57,971 - -
====== ======= =======
Decrease in oil and gas
properties SFAS No. 143
sale of oil and gas $ 12,150 - -
properties
====== ======= =======
Increase in oil and gas
properties SFAS No. 143
addition of oil and gas
properties due to
farmout arrangements $ 152 - -
====== ======= =======





















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

Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

1. Organization
Southwest Oil & Gas Income Fund XI-A, L.P. was organized under the
laws of the state of Delaware on May 5, 1992, for the purpose of
acquiring producing oil and gas properties and to produce and market
crude oil and natural gas produced from such properties for a term of
50 years, unless terminated at an earlier date as provided for in the
Partnership Agreement. The Partnership will sell its oil and gas
production to a variety of purchasers with the prices it receives
being dependent upon the oil and gas economy. Southwest Royalties,
Inc. serves as the Managing General Partner and H. H. Wommack, III, as
the individual general partner. Partnership profits and losses, as
well as all items of income, gain, loss, deduction, or credit, will be
credited or charged as follows:
Limited General
Partners Partners
(1)
-------- --------
Organization and offering 100% -
expenses (2)
Acquisition costs 100% -
Operating costs 90% 10%
Administrative costs (3) 90% 10%
Direct costs 90% 10%
All other costs 90% 10%
Interest income earned on
capital
contributions 100% -
Oil and gas revenues 90% 10%
Other revenues 90% 10%
Amortization 100% -
Depletion allowances 100% -

(1) H.H. Wommack, III, President of the Managing General
Partner, is an additional general partner in the Partnership and
has a one percent interest in the Partnership. Mr. Wommack is
the majority stockholder of the Managing General Partner whose
continued involvement in Partnership management is important to
its operations. Mr. Wommack, as a general partner, shares also
in Partnership liabilities.

(2) Organization and Offering Expenses (including all cost of
selling and organizing the offering) include a payment by the
Partnership of an amount equal to three percent (3%) of Capital
Contributions for reimbursement of such expenses. All
Organization Costs (which excludes sales commissions and fees) in
excess of three percent (3%) of Capital Contributions with
respect to the Partnership will be allocated to and paid by the
Managing General Partner.

(3) Administrative Costs will be paid from the Partnership's
revenues; however; Administrative Costs in the Partnership year
in excess of two percent (2%) of Capital Contributions shall be
allocated to and paid by the Managing General Partner.

2. Summary of Significant Accounting Policies

Oil and Gas Properties
Oil and gas properties are accounted for at cost under the full-cost
method. Under this method, all productive and nonproductive costs
incurred in connection with the acquisition, exploration and
development of oil and gas reserves are capitalized. Gain or loss on
the sale of oil and gas properties is not recognized unless
significant oil and gas reserves are involved.

Should the net capitalized costs exceed the estimated present value of
oil and gas reserves, discounted at 10%, such excess costs would be
charged to current expense. In applying the units-of-revenue method
for the year ended December 31, 2001, we have not excluded royalty and
net profit interest payments from gross revenues as all of our royalty
and net profit interests have been purchased and capitalized to the
depletion basis of our proved oil and gas properties. As of December
31, 2003, 2002 and 2001, the net capitalized costs did not exceed the
estimated present value of oil and gas reserves.


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

2. Summary of Significant Accounting Policies - continued

Estimates and Uncertainties
The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the
date of the financial statements and the reported amounts of revenues
and expenses during the reporting period. The Partnerships depletion
calculation and full-cost ceiling test for oil and gas properties uses
oil and gas reserves estimates, which are inherently imprecise. Actual
results could differ from those estimates.

Syndication Costs
Syndication Costs are accounted for as a reduction of partnership
equity.

Environmental Costs
The Partnership is subject to extensive federal, state and local
environmental laws and regulations. These laws, which are constantly
changing, regulate the discharge of materials into the environment and
may require the Partnership to remove or mitigate the environmental
effects of the disposal or release of petroleum or chemical substances
at various sites. Environmental expenditures are expensed or
capitalized depending on their future economic benefit. Costs, which
improve a property as compared with the condition of the property when
originally constructed or acquired and costs, which prevent future
environmental contamination are capitalized. Expenditures that relate
to an existing condition caused by past operations and that have no
future economic benefits are expensed. Liabilities for expenditures
of a non-capital nature are recorded when environmental assessment
and/or remediation is probable, and the costs can be reasonably
estimated.

Revenue Recognition
We recognize oil and gas sales when delivery to the purchaser has
occurred and title has transferred. This occurs when production has
been delivered to a pipeline or transport vehicle.

Gas Balancing
The Partnership utilizes the sales method of accounting for gas-
balancing arrangements. Under this method the Partnership recognizes
sales revenue on all gas sold. As of December 31, 2003 and 2002 there
were no significant amounts of imbalance in terms of units or value.

Income Taxes
No provision for income taxes is reflected in these financial
statements, since the tax effects of the Partnership's income or loss
are passed through to the individual partners.

In accordance with the requirements of Statement of Financial
Accounting Standards No. 109, "Accounting for Income Taxes," the
Partnership's tax basis in its net oil and gas properties at December
31, 2003 and 2002 is $1,814, less than and $20,672, more than that
shown on the accompanying Balance Sheet in accordance with generally
accepted accounting principles.

Cash and Cash Equivalents
For purposes of the statement of cash flows, the Partnership considers
all highly liquid debt instruments purchased with a maturity of three
months or less to be cash equivalents. The Partnership maintains its
cash at one financial institution.

Number of Limited Partner Units
As of December 31, 2003, 2002 and 2001 there were 2,821 limited
partner units outstanding held by 119, 120, 120 partners.

Concentrations of Credit Risk
The Partnership is subject to credit risk through trade receivables.
Although a substantial portion of its debtors' ability to pay is
dependent upon the oil and gas industry, credit risk is minimized due
to a large customer base. All partnership revenues are received by
the Managing General Partner and subsequently remitted to the
partnership and all expenses are paid by the Managing General Partner
and subsequently reimbursed by the partnership.


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

2. Summary of Significant Accounting Policies - continued

Fair Value of Financial Instruments
The carrying amount of cash and accounts receivable approximates fair
value due to the short maturity of these instruments.

Net Income (loss) per limited partnership unit
The net income (loss) per limited partnership unit is calculated by
using the number of outstanding limited partnership units.

Recent Accounting Pronouncements
The EITF is considering two issues related to the reporting of oil and
gas mineral rights. Issue No. 03-O, "Whether Mineral Rights Are
Tangible or Intangible Assets," is whether or not mineral rights are
intangible assets pursuant to SFAS No. 141, "Business Combinations."
Issue No. 03-S, "Application of SFAS No. 142, Goodwill and Other
Intangible Assets, to Oil and Gas Companies," is, if oil and gas
drilling rights are intangible assets, whether those assets are
subject to the classification and disclosure provisions of SFAS No.
142. The Partnership classifies the cost of oil and gas mineral
rights as properties and equipment and believes that this is
consistent with oil and gas accounting and industry practice. The
disclosures required by SFAS Nos. 141 and 142 would be made in the
notes to the financial statements. There would be no effect on the
statement of income or cash flows as the intangible assets related to
oil and gas mineral rights would continue to be amortized under the
full cost method of accounting.

Depletion Policy
In 2002, the Partnership changed methods of accounting for depletion
of capitalized costs from the units-of-revenue method to the units-of-
production method. (See Note 4)

3. Cumulative effect of change in accounting principle - SFAS No. 143
On January 1, 2003, the Partnership adopted Statement of Financial
Accounting Standards No. 143, Accounting for Asset Retirement
Obligations ("SFAS No. 143"). Adoption of SFAS No. 143 is required
for all companies with fiscal years beginning after June 15, 2002.
The new standard requires the Partnership to recognize a liability for
the present value of all legal obligations associated with the
retirement of tangible long-lived assets and to capitalize an equal
amount as a cost of the asset and depreciate the additional cost over
the estimated useful life of the asset. On January 1, 2003, the
Partnership recorded additional costs, net of accumulated
depreciation, of approximately $57,971, a long term liability of
approximately $63,696 and a loss of approximately $5,725 for the
cumulative effect on depreciation of the additional costs and
accretion expense on the liability related to expected abandonment
costs of its oil and natural gas producing properties. At December
31, 2003, the asset retirement obligation was $56,328, and the
decrease in the balance from January 1, 2003 is due to the sale of
three oil and gas properties, which decreased the asset retirement
obligation by $ 12,150, partially offset by accretion expense of
$4,630 and an addition of one oil and gas property by $152. The pro
forma amounts of the asset retirement obligation as of December 31,
2002, 2001 and 2000, were approximately $63,696, $59,008 and $54,665,
respectively. The pro forma amounts of the asset retirement
obligation were measured using information, assumptions and interest
rates as of the adoption date of January 1, 2003. The pro forma
amounts for the years ended December 31, 2002 and 2001, which are
presented below, reflect the effect of retroactive application of SFAS
No. 143.
2002 2001
---- ----
Pro forma amounts assuming
change is applied
retroactively:
Net income before cumulative
effect
for change in depletion $ 36,816 24,949
method
====== ======
Per limited partner unit $ 10.97 6.15
(2,821.0 units)
====== ======
Net income $ 37,816 24,949
====== ======
Per limited partner unit $ 11.32 6.15
(2,821.0 units)
====== ======

Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

4. Cumulative effect of a change in accounting principle - change in
depletion method
In 2002, the Partnership changed methods of accounting for depletion
of capitalized costs from the units-of-revenue method to the units-of-
production method. The newly adopted accounting principle is
preferable in the circumstances because the units-of-production method
results in a better matching of the costs of oil and gas production
against the related revenue received in periods of volatile prices for
production as have been experienced in recent periods. Additionally,
the units-of-production method is the predominant method used by full
cost companies in the oil and gas industry, accordingly, the change
improves the comparability of the Partnership's financial statements
with its peer group. The Partnership adopted the units-of-production
method through the recording of a cumulative effect of a change in
accounting principle in the amount of $1,000 effective as of January
1, 2002. The Partnership's depletion for the years ended 2003 and
2002 have been calculated using the units-of-production method and
2001 has not been restated. The pro forma amounts for 2001, which are
presented below, reflect the effect of retroactive application of the
units-of-production method. See Note 12 for the effects of the change
in depletion method on the individual quarters of 2002.

2001

----
Pro forma amounts assuming
change is applied
retroactively:
Net income $ 44,292
======
Per limited partner unit $ 12.85
(2,821.0 units)
======

5. Discontinued Operations - Sale of oil and gas leases
During the year ended December 31, 2003, the Partnership sold its
interest in certain oil and gas wells for $42,433 and retired $12,150
of asset retirement obligation associated with the properties. Since
the Partnership is under the full cost pool method of accounting, the
sales proceeds and asset retirement obligation liability were taken
against the oil and gas properties asset account and therefore, no
gain or loss was recorded and shown on the statement of operations as
part of the discontinued operations. Pursuant to the requirements of
SFAS No. 144, the historical operating results from these properties
have been reported as discontinued operations in the accompanying
statements of operations. The following table summarizes certain
historical operating information related to the discontinued
operations:

2003 2002 2001
----- ----- -----
Revenues $26,794 24,810 49,414
Net income 16,231 5,381 21,505



Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

6. Liquidity - Managing General Partner
As of December 31, 2003, the Managing General Partner is in violation
of several covenants pertaining to their Amended and Restated
Revolving Credit Agreement due June 1, 2006 and their Senior Second
Lien Secured Credit Agreement due October 15, 2008. Due to the
covenant violations, the Managing General Partner is in default under
their Amended and Restated Revolving Credit Agreement and the Senior
Second Lien Secured Credit Agreement, and all amounts due under these
agreements have been classified as a current liability on the Managing
General Partner's balance sheet at December 31, 2003. The significant
working capital deficit and debt being in default at December 31,
2003, raise substantial doubt about the Managing General Partner's
ability to continue as a going concern.

Subsequent to December 31, 2003, the Board of Directors of the
Managing General Partner announced its decision to explore a merger,
sale of the stock or other transaction involving the Managing General
Partner. The Board has formed a Special Committee of independent
directors to oversee the sales process. The Special Committee has
retained independent financial and legal advisors to work closely with
the management of the Managing General Partner to implement the sales
process. There can be no assurance that a sale of the Managing
General Partner will be consummated or what terms, if consummated, the
sale will be on.

7. Commitments and Contingent Liabilities
The Managing General Partner has the right, but not the obligation, to
purchase limited partnership units should an investor desire to sell.
The value of the unit is determined by adding the sum of (1) current
assets less liabilities and (2) the present value of the future net
revenues attributable to proved reserves and by discounting the future
net revenues at a rate not in excess of the prime rate charged by
NationsBank, N.A. of Midland, Texas plus one percent (1%), which value
shall be further reduced by a risk factor discount of no more than one-
third (1/3) to be determined by the Managing General Partner in its
sole and absolute discretion.

The Partnership is subject to various federal, state and local
environmental laws and regulations, which establish standards and
requirements for protection of the environment. The Partnership
cannot predict the future impact of such standards and requirements,
which are subject to change and can have retroactive effectiveness.
The Partnership continues to monitor the status of these laws and
regulations.

As of December 31, 2003, the Partnership has not been fined, cited or
notified of any environmental violations and management is not aware
of any unasserted violations, which would have a material adverse
effect upon capital expenditures, earnings or the competitive position
in the oil and gas industry. However, the Managing General Partner
does recognize by the very nature of its business, material costs
could be incurred in the near term to bring the Partnership into total
compliance. The amount of such future expenditures is not reliably
determinable due to several factors, including the unknown magnitude
of possible contaminations, the unknown timing and extent of the
corrective actions which may be required, the determination of the
Partnership's liability in proportion to other responsible parties and
the extent to which such expenditures are recoverable from insurance
or indemnifications from prior owners of Partnership's properties.



Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

8. Related Party Transactions
A significant portion of the oil and gas properties in which the
Partnership has an interest are operated by and purchased from the
Managing General Partner. As provided for in the operating agreement
for each respective oil and gas property in which the Partnership has
an interest, the operator is paid an amount for administrative
overhead attributable to operating such properties, with such amounts
to Southwest Royalties, Inc. as operator approximating $19,600,
$20,600 and $24,000 for the years ended December 31, 2003, 2002 and
2001. In addition, the Managing General Partner and certain officers
and employees may have an interest in some of the properties that the
Partnership also participates.

Southwest Royalties, Inc., the Managing General Partner, was paid
$12,000 for the years ended December 31, 2003, 2002 and 2001, as an
administrative fee, for indirect general and administrative overhead
expenses. The administrative fees are included in general and
administrative expense on the statement of operations.

(Payable) Receivables (to) from Southwest Royalties, Inc., the
Managing General Partner, of approximately $(2,800) and $24,300 are
from oil and gas production, net of lease operating costs and
production taxes, as of December 2003 and 2002, respectively.

9. Major Customers
No material portion of the Partnership's business is dependent on a
single purchaser, or a very few purchasers, where the loss of one
would have a material adverse impact on the Partnership. Five
purchasers accounted for 89% of the Partnership's total oil and gas
production during 2003: ConocoPhillips Company for 24%, Sid
Richardson Energy Services for 22%, Duke Energy Field Services LP for
19%, Navajo Refining Company Inc. for 12% and Chesapeake Operating,
Inc. for 12%. Five purchasers accounted for 86% of the Partnership's
total oil and gas production during 2002: Phillips 66 Company for 25%,
Sid Richardson Energy Services for 22%, Duke Energy Field Services LP
for 14%, Chesapeake Operating Inc. for 13% and Navajo Refining Co.,
Inc. for 12%. Five purchasers accounted for 85% of the Partnership's
total oil and gas production during 2001: Sid Richardson Energy
Services for 26%, Duke Energy Field Services for 17%, Phillips 66
Company for 17%, Sap Acquisition Corporation for 15%, and Navajo
Refining Company, Inc. for 10%. All purchasers of the Partnership's
oil and gas production are unrelated third parties. In the event any
of these purchasers were to discontinue purchasing the Partnership's
production, the Managing General Partner believes that a substitute
purchaser or purchasers could be located without undue delay. No
other purchaser accounted for an amount equal to or greater than 10%
of the Partnership's sales of oil and gas production.

10. Subsequent Event
Subsequent to December 31, 2003, the Managing General Partner
announced that its Board of Directors had decided to explore a merger
or sale of the stock of the Company. The Board formed a Special
Committee of independent directors to oversee the sale process. The
Special Committee retained independent financial and legal advisors to
work closely with management to implement the sale process.

On May 3, 2004, the Managing General Partner entered into a cash
merger agreement to sell all of its stock to Clayton Williams Energy,
Inc. The cash merger price is being negotiated, but is expected to be
approximately $45 per share. The transaction, which is subject to
approval by the Managing General Partner's shareholders, is expected
to close no later than May 21, 2004.



Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

11. Estimated Oil and Gas Reserves (unaudited)
The Partnership's interest in proved oil and gas reserves is as
follows:

Oil Gas
(bbls) (mcf)
-------- --------
-- -

Total Proved -

January 1, 2001 40,000 481,000

Revisions of previous (11,000) (186,000
estimates )
Production from continuing (3,000) (29,000)
operations
Production from (1,000) (8,000)
discontinued operations
-------- --------
- --
December 31, 2001 25,000 258,000

Revisions of previous 24,000 32,000
estimates
Production from continuing (3,000) (23,000)
operations
Production from (1,000) (7,000)
discontinued operations
-------- --------
- --
December 31, 2002 45,000 260,000

Sales of reserves in place (6,000) (63,000)
Revisions of previous 3,000 (35,000)
estimates
Production from continuing (3,000) (18,000)
operations
Production from - (4,000)
discontinued operations
-------- --------
- --
December 31, 2003 39,000 140,000
===== ======

Proved developed reserves -

December 31, 2001 25,000 255,000
===== ======
December 31, 2002 45,000 257,000
===== ======
December 31, 2003 39,000 140,000
===== ======

All of the Partnership's reserves are located within the continental
United States.

*Ryder Scott Company, L.P. prepared the reserve and present value data
for the Partnership's existing properties as of January 1, 2004. The
reserve estimates were made in accordance with guidelines established
by the Securities and Exchange Commission pursuant to Rule 4-10(a) of
Regulation S-X. Such guidelines require oil and gas reserve reports
be prepared under existing economic and operating conditions with no
provisions for price and cost escalation except by contractual
arrangements.


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

11. Estimated Oil and Gas Reserves (unaudited) - continued

Oil price adjustments were made in the individual evaluations to
reflect oil quality, gathering and transportation costs. The results
of the reserve report as of January 1, 2004, 2003 and 2002 are an
average price of $30.30, $28.78 and $17.14 per barrel, respectively.

Gas price adjustments were made in the individual evaluations to
reflect BTU content, gathering and transportation costs and gas
processing and shrinkage. The results of the reserve report as of
January 1, 2004, 2003 and 2002 are an average price of $5.36, $4.17
and $2.03 per Mcf, respectively.

The evaluation of oil and gas properties is not an exact science and
inevitably involves a significant degree of uncertainty, particularly
with respect to the quantity of oil or gas that any given property is
capable of producing. Estimates of oil and gas reserves are based on
available geological and engineering data, the extent and quality of
which may vary in each case and, in certain instances, may prove to be
inaccurate. Consequently, properties may be depleted more rapidly
than the geological and engineering data have indicated.

Unanticipated depletion, if it occurs, will result in lower reserves
than previously estimated; thus an ultimately lower return for the
Partnership. Basic changes in past reserve estimates occur annually.
As new data is gathered during the subsequent year, the engineer must
revise his earlier estimates. A year of new information, which is
pertinent to the estimation of future recoverable volumes, is
available during the subsequent year evaluation. In applying industry
standards and procedures, the new data may cause the previous
estimates to be revised. This revision may increase or decrease the
earlier estimated volumes. Pertinent information gathered during the
year may include actual production and decline rates, production from
offset wells drilled to the same geologic formation, increased or
decreased water production, workovers, and changes in lifting costs,
among others. Accordingly, reserve estimates are often different from
the quantities of oil and gas that are ultimately recovered.

The Partnership has reserves, which are classified as proved developed
and proved undeveloped. All of the proved reserves are included in
the engineering reports, which evaluate the Partnership's present
reserves.

Because the Partnership does not engage in drilling activities, the
development of proved undeveloped reserves is conducted pursuant to
farm-out arrangements with the Managing General Partner or unrelated
third parties. Generally, the Partnership retains a carried interest
such as an overriding royalty interest under the terms of a farm-out.


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

11. Estimated Oil & Gas Reserves (unaudited) - continued
The standardized measure of discounted future net cash flows relating
to proved oil and gas reserves at December 31, 2003, 2002 and 2001 is
presented below:

2003 2002 2001
---- ---- ----

Future cash inflows $ 1,940,00 2,369,00 947,000
0 0
Production, development and
abandonment costs 975,000 1,060,00 564,000
0
-------- -------- --------
---- ----- --
Future net cash flows 965,000 1,309,00 383,000
0
10% annual discount for
estimated
timing of cash flows 465,000 587,000 128,000
-------- -------- --------
---- ----- --
Standardized measure of
discounted
future net cash flows $ 500,000 722,000 255,000
======= ======== ======

The principal sources of change in the standardized measure of
discounted future net cash flows for the years ended December 31,
2003, 2002 and 2001 are as follows:

2003 2002 2001
---- ---- ----

Sales of oil and gas
produced,
net of production costs $ (96,000) (80,000) (97,000)
Changes in prices and (32,000) 324,000 (1,944,0
productions costs 00)
Changes of production rates
(timing) and others (53,000) (42,000) 300,000
Revisions of previous
quantities estimates (21,000) 239,000 (157,000
)
Accretion of discount 72,000 26,000 196,000
Sales of minerals in place (92,000) - -
Discounted future net
cash flows -
Beginning of year 722,000 255,000 1,957,00
0
-------- -------- --------
---- ---- ----
End of year $ 500,000 722,000 255,000
======= ======= =======

Future net cash flows were computed using year-end prices and costs
that related to existing proved oil and gas reserves in which the
Partnership has mineral interests.


Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

12. Selected Quarterly Financial Results - (unaudited)

Quarter
-------------------------------------
-------------------------------------
---
First Second Third Fourth
------ ------- ------- ---------
----
2003:
Total revenues $ 54,489 43,117 28,996 42,582
Total expenses 34,026 37,612 32,040 32,244
-------- ------- -------- ---------
---- ----- ---- ---
Net income (loss) from 20,463 5,505 (3,044) 10,338
continuing operations
Results from discontinued 4,656 7,096 4,479 -
operations
Cumulative effect of change
in accounting
principle - SFAS No. 143 (5,725) - - -
-------- ------- -------- ---------
---- ----- ---- ---
Net income $ 19,394 12,601 1,435 10,338
======= ======= ======= =======
Per limited partner unit
amounts:
Net income (loss) from $ 6.39 (1.07) 3.13
continuing operations 1.61
Discontinued operations 1.45 -
2.23 1.39
Cumulative effects (1.83) - - -
-------- ------- -------- ---------
---- ----- ---- ---
Net income $ 6.01 .32 3.13
3.84
======= ======= ======= =======

Discontinued operations relating to disposed properties were reclassed
out of revenues and expenses.




Southwest Oil & Gas Income Fund XI-A, L.P.
(a Delaware limited partnership)

Notes to Financial Statements

12. Selected Quarterly Financial Results - (unaudited)
As discussed in Note 4, in 2002 the Partnership changed methods of
accounting for depletion of capitalized costs from the units-of-
revenue method to the units-of-production method. The 2002 quarterly
financial results presented below reflect the change in depletion
method effective as of January 1, 2002.

Quarter
-------------------------------------
-------------------------------------
---
First Second Third Fourth
------ ------- ------- ---------
----
2002:
Total revenues $ 27,005 44,101 34,503 43,324
Total expenses 20,826 30,781 31,705 29,498
-------- ------- -------- ---------
---- ----- ---- ---
Net income from continuing 8,624 13,618 1,798 12,980
operations
Results from discontinued 2,445 298 3,484 (846)
operations
Cumulative effect on prior
years (to
December 31, 2001) of
changing to a
different depletion method 1,000 - - -
-------- ------- -------- ---------
---- ----- ---- ---
Net income $ 9,624 13,618 6,282 12,980
======= ======= ======= =======
Per limited partner unit
amounts:
Net income from continuing 1.80 .75 4.28
operations 4.07
Discontinued operations .74
.06 1.08 (.31)
Cumulative effects .35 - - -
-------- ------- -------- ---------
---- ----- ---- ---
Net income $ 2.89 3.97
4.13 1.83
======= ======= ======= =======

Discontinued operations relating to disposed properties were reclassed out
of revenues and expenses.



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

None

Item 9A. Controls and Procedures

Disclosure Controls and Procedures
As of the year ended December 31, 2003, H.H. Wommack, III, President and
Chief Executive Officer of the Managing General Partner, and Bill E.
Coggin, Executive Vice President and Chief Financial Officer of the
Managing General Partner, evaluated the effectiveness of the Partnership's
disclosure controls and procedures. Based on their evaluation, they
believe that:

The disclosure controls and procedures of the Partnership were
effective in ensuring that information required to be disclosed by the
Partnership in the reports it files or submits under the Exchange Act
was recorded, processed, summarized and reported within the time
periods specified in the SEC's rules and forms; and

The disclosure controls and procedures of the Partnership were
effective in ensuring that material information required to be
disclosed by the Partnership in the report it filed or submitted under
the Exchange Act was accumulated and communicated to the Managing
General Partner's management, including its President and Chief
Executive Officer and Chief Financial Officer, as appropriate to allow
timely decisions regarding required disclosure.

Internal Control Over Financial Reporting
There has not been any change in the Partnership's internal control over
financial reporting that occurred during the year ended December 31, 2003
that has materially affected, or is reasonably likely to materially affect,
it internal control over financial reporting.


Part III

Item 10. Directors and Executive Officers of the Registrant

Management of the Partnership is provided by Southwest Royalties, Inc., as
Managing General Partner. The names, ages, offices, positions and length
of service of the directors and executive officers of Southwest Royalties,
Inc. are set forth below. Each director and executive officer of the
Managing General Partner serves for a term of one year.

Name Age Position
- ----------------------- --- -----------------------------
- ---------------------- -- -----------------------------
H. H. Wommack, III 48 Chairman of the Board,
President, Director
and Chief Executive Officer
James N. Chapman(1) 41 Director
William P. Nicoletti(2) 58 Director
Joseph J. Radecki, Jr. 45 Director
(2)
Richard D. Rinehart(1) 68 Director
John M. White(2) 48 Director
Herbert C. Williamson, 55 Director
III(1)
Bill E. Coggin 49 Executive Vice President and
Chief Financial Officer
J. Steven Person 45 Vice President, Marketing

(1) Member of the Compensation Committee

(2) Member of the Audit Committee

H. H. Wommack, III has served as Chairman of the Board, President, Chief
Executive Officer and a director since Southwest's founding in 1983. Since
1997 Mr. Wommack has served as President, Chief Executive Officer and
Chairman of SRH, Southwest's former parent and current holder of 10% of its
voting share capital. SRH holds an equity investment in Southwest and in
Basic Energy Services. Since 1997 Mr. Wommack has served as chairman of
the board of directors of Midland Red Oak Realty, Inc. Midland Red Oak
Realty owns and manages commercial real estate properties, including
shopping centers and office buildings, in secondary real estate markets in
the Southwestern United States. From 1997 until December 2000, Mr. Wommack
served as chairman of the board of directors of Basic Energy Services, Inc.
and since December 2000 has continued to serve on Basic's board of
directors. Basic provides certain well services for oil and gas companies.
Prior to Southwest's formation, Mr. Wommack was a self-employed independent
oil and gas producer engaged in the purchase and sale of royalty and
working interests in oil and gas leases and the drilling of wells. Mr.
Wommack graduated from the University of North Carolina at Chapel Hill and
received his law degree from the University of Texas.

James N. Chapman has served as a director since April 19, 2002. Mr.
Chapman is associated with Regiment Capital Advisors, LLC, which he joined
in January 2003. Prior to Regiment, Mr. Chapman acted as a capital markets
and strategic planning consultant with private and public companies, as
well as hedge funds, across a range of industries. Prior to establishing an
independent consulting practice, Mr. Chapman worked for The Renco Group,
Inc. from December 1996 to December 2001. Prior to Renco, Mr. Chapman was
a founding principal of Fieldstone Private Capital Group in August 1990.
Prior to joining Fieldstone, Mr. Chapman worked for Bankers Trust Company
from July 1985 to August 1990, most recently in the BT Securities capital
markets area. Mr. Chapman serves as a member of the board of directors of
Anchor Glass Container Corporation, Davel Communications, Inc., Coinmach
Corporation, as well as a number of private companies.

William P. Nicoletti has served as a director since April 19, 2002. Mr.
Nicoletti is Managing Director of Nicoletti & Company Inc., an investment
banking and financial advisory firm he founded in 1991. He was previously
a senior officer and head of the Energy Investment Banking Groups of E. F.
Hutton & Company Inc. and Paine Webber, Incorporated. From March 1998
until June 1990 he was a managing director and co-head of Energy Investment
Banking at McDonald Investments Inc. Mr. Nicoletti has been Chairman of
the board of directors of Russell-Stanley Holdings, Inc., a manufacturer
and marketer of steel and plastic industrial containers since November
2001. He is a director of MarkWest Energy Partners, L.P., a business
engaged in the gathering and processing of natural gas and the
fractionation and storage of natural gas liquids. Mr. Nicoletti is also a
Director and Chairman of the Audit Committee of Star Gas Partners, L.P.,
the nation's largest retail distributor of home heating oil and a major
retail distributor of propane gas. Mr. Nicoletti is a graduate of Seton
Hall University and received an MBA degree from Columbia University
Graduate School of Business.

Joseph J. Radecki, Jr. has served as a director since April 19, 2002. Mr.
Radecki is currently a Managing Director in the Leveraged Finance Group of
CIBC World Markets where he is principally responsible for the firm's
financial restructuring and distressed situation advisory practice. Prior
to joining CIBC World Markets in 1998, Mr. Radecki was an Executive Vice
President and Director of the Financial Restructuring Group of Jefferies &
Company, Inc. beginning in 1990. From 1983 until 1990, Mr. Radecki was
First Vice President in the International Capital Markets Group at Drexel
Burnham Lambert, Inc., where he specialized in financial restructurings and
recapitalizations. Over the past fourteen years, Mr. Radecki has been
integrally involved in over 120 transactions totaling nearly $50 billion in
recapitalized securities. Mr. Radecki currently serves as a Director of
RBX Corporation, a manufacturer of rubber and plastic foam and other
polymer products. He previously served as a Director of Wherehouse
Entertainment, Inc., a music and video specialty retailer, as Chairman of
the Board of American Rice, Inc., an international rice miller and
marketer, as a member of the Board of Directors of Service America
Corporation, a national food service management firm, Bucyrus
International, Inc., a mining equipment manufacturer, and ECO-Net, a non-
profit engineering related network firm. Mr. Radecki graduated magna cum
laude in 1980 from Georgetown University with a B.A. in Government.

Richard D. Rinehart has served as a director since April 19, 2002. Mr.
Rinehart is a founding principal of PetroCap, Inc. and president of Kestrel
Resources, Inc. PetroCap, Inc. provides investment and merchant banking
services to a variety of clients active in the oil and gas industry.
Kestrel Resources, Inc. is a privately owned oil and gas operating company.
He served as Director of Coopers & Lybrand's Energy Systems and Services
Division prior to the founding of Kestrel Resources, Inc. in 1992. Prior to
joining Coopers & Lybrand, he was chief executive officer/founder of Dawn
Information Resources, Inc., formed in 1986 and acquired by Coopers &
Lybrand in early 1991. Mr. Rinehart served as CEO of Terrapet Energy
Corporation during the period 1982 through 1986. Prior to the formation of
Terrapet in 1982, he was employed as President of the Terrapet Division of
E.I. DuPont de Nemours and Company. Before its acquisition by DuPont, he
served as CEO and President of Terrapet Corp., a privately owned E & P
company. Before the formation of Terrapet Corp. in 1972, he was manager of
supplementary recovery methods and senior evaluation engineer with H. J.
Gruy and Associates, Inc., Dallas, Texas.

John White has served as a director since April 19, 2002. Mr. White became
an equity analyst for Harris Nesbitt Gerard following the acquisition by
BMO Financial Group in 2003. He had joined BMO Nesbitt Burns in 1998,
responsible for high yield research on oil, gas and energy companies.
Previously, Mr. White worked at John S. Herold, Inc., an independent oil
and gas research and consulting firm, where he was responsible for fixed
income research on the oil and gas industry. His prior experience also
included four years managing a portfolio of oil and gas loans for The Bank
of Nova Scotia. Before entering financial services, Mr. White was with BP,
where he worked in exploration and production for seven years. At BP, his
experience was primarily in the basins of the Mid-Continent and Rocky
Mountain regions. Mr. White is a graduate of The University of Oklahoma.

Herbert C. Williamson, III has served as a director since April 19, 2002.
At present, Mr. Williamson is self-employed as a consultant. From March
2001 to March 2002 Mr. Williamson served as an investment banker with
Petrie Parkman & Co. From April 1999 to March 2001 Mr. Williamson served
as chief financial officer and from August 1999 to March 2001 as a director
of Merlon Petroleum Company, a private oil and gas company involved in
exploration and production in Egypt. Mr. Williamson served as executive
vice president, chief financial officer and director of Seven Seas
Petroleum, Inc., a publicly traded oil and gas exploration company, from
March 1998 to April 1999. From 1995 through April 1998, he served as
director in the Investment Banking Department of Credit Suisse First
Boston. Mr. Williamson served as vice chairman and executive vice
president of Parker and Parsley Petroleum Company, a publicly traded oil
and gas exploration company (now Pioneer Natural Resources Company) from
1985 through 1995.

Bill E. Coggin has served as Vice President and Chief Financial Officer
since joining the Managing General Partner in 1985. Previously, Mr. Coggin
was Controller for Rod Ric Corporation, an oil and gas drilling company,
and for C.F. Lawrence & Associates, a large independent oil and gas
operator. Mr. Coggin received a B.S. in Education and a B.A. in Accounting
from Angelo State University.

J. Steven Person has served as Vice President, Marketing since joining the
Managing General Partner in 1989. Mr. Person began in the investment
industry with Dean Witter in 1983. Prior to joining the Managing General
Partner, Mr. Person was a senior wholesaler with Capital Realty, Inc. While
at Capital Realty, he was involved in the syndication of mortgage based
securities through the major brokerage houses. Mr. Person received a
B.B.A. degree from Baylor University and an M.B.A. from Houston Baptist
University.


Key Employees

Jon P. Tate, age 46, has served as Vice President, Land and Assistant
Secretary of the Managing General Partner since 1989. From 1981 to 1989,
Mr. Tate was employed by C.F. Lawrence & Associates, Inc., an independent
oil and gas company, as land manager. Mr. Tate is a member of the Permian
Basin Landman's Association.

R. Douglas Keathley, age 48, has served as Vice President, Operations of
the Managing General Partner since 1992. Before joining us, Mr. Keathley
worked as a senior drilling engineer for ARCO Oil and Gas Company and in
similar capacities for Reading & Bates Petroleum Co. and Tenneco Oil Co.

In certain instances, the Managing General Partner will engage professional
petroleum consultants and other independent contractors, including
engineers and geologists in connection with property acquisitions,
geological and geophysical analysis, and reservoir engineering. The
Managing General Partner believes that, in addition to its own "in-house"
staff, the utilization of such consultants and independent contractors in
specific instances and on an "as-needed" basis allows for greater
flexibility and greater opportunity to perform its oil and gas activities
more economically and effectively.

Code of Ethics

Neither the Partnership nor the Managing General Partner has adopted a code
of ethics for employees, or any principal executive officers, principal
financial officers, principal accounting officers or the Board of Directors
of the Managing General Partner. The Board of the Managing General Partner
believes that the Partnership's existing internal control procedures and
current business practices are adequate to promote ethical conduct and to
deter wrongdoing on the part of these executives. The Managing General
Partner of the Partnership intends to implement during 2004 a code of
ethics that will apply to these executives. In accordance with applicable
SEC rules, the code of ethics will be made publicly available.

Audit Committee

The current members of the Audit Committee of the Managing General Partner
are William P. Nicoletti, John M. White and Joseph J. Radecki, Jr. The
Board of Directors of the Managing General Partner has determined that Mr.
Nicoletti, the Chairman of the Audit Committee, meets the definition of an
"audit committee financial expert" under Item 401(h)(2) of Regulation S-K
and has also determined that all of the members of the Audit Committee,
including Mr. Nicoletti, meet the independence requirements of Section
10A(m)(3) of the Securities Exchange Act of 1934, as amended, and the rules
and regulations promulgated thereunder.

Item 11. Executive Compensation

The Partnership does not employ any directors, executive officers or
employees. The Managing General Partner receives an administrative fee for
the management of the Partnership. The Managing General Partner received
$12,000 during 2003, 2002 and 2001 as an annual administrative fee. The
executive officers of the Managing General Partner do not receive any form
of compensation, from the Partnership; instead, their compensation is paid
solely by Southwest. The executive officers, however, may occasionally
perform administrative duties for the Partnership but receive no additional
compensation for this work.


Item 12. Security Ownership of Certain Beneficial Owners and Management
and Related Stockholder Matters

There are no limited partners other than as listed below, who own of
record, or are known by the Managing General Partner, to beneficially own,
more than five percent of the Partnership's limited partnership interests.


Amount and
Nature of Percen
t
Name and Address of Beneficial of
Title of Class Beneficial Owner Ownership Class
- ------------------- --------------------- ---------- ------
- -------------- -------------- ------ -----
Limited Partnership Richard T. Carroll, 400 12.8%
Units Trustee limited
9580 S. Clearspring partnershi
Drive p units
Floral City, FL 34436


The Managing General Partner owns a nine percent interest in the
Partnership as a general partner. Through prior purchases, the Managing
General Partner also owns 40.0 limited partner units, or 1.3% limited
partner interest. The Managing General Partner total percentage interest
ownership in the Partnership is 10.3%.

No officer or director of the Managing Partner directly owns Units in the
Partnership. H.H. Wommack, III, as the individual general partner of the
Partnership, owns a one percent interest in the Partnership as a general
partner. The officers and directors of the Managing General Partner are
considered beneficial owners of the limited partner units acquired by the
Managing General Partner by virtue of their status as such. Beneficial
ownership is determined in accordance with the rules of the Securities and
Exchange Commission and includes voting or investment power with respect to
the limited partner units. To our knowledge, except under applicable
community property laws or as otherwise indicated, the persons named in the
table have sole voting and sole investment control with regard to all
limited partner units beneficially owned. We are presenting ownership
information as of December 31, 2003. A list of beneficial owners of limited
partner units, known to the Managing General Partner, is as follows:

Amount and
Nature of Percen
t
Name and Address of Beneficial of
Title of Class Beneficial Owner Ownership Class
- ------------------- --------------------- ---------- ------
-------------- -------------- ------ -----
Limited Partnership Southwest Royalties, Directly 1.3%
Interest Inc. Owns
Managing General 40.0 Units
Partner
407 N. Big Spring
Street
Midland, TX 79701

Limited Partnership H. H. Wommack, III Indirectly 1.3%
Interest Owns
Chairman of the 40.0 Units
Board,
President, and CEO
of Southwest
Royalties, Inc.,
the Managing General
Partner
407 N. Big Spring
Street
Midland, TX 79701


There are no arrangements known to the Managing General Partner, which may
at a subsequent date result in a change of control of the Partnership.


Item 13. Certain Relationships and Related Transactions

In 2003, the Managing General Partner received $12,000 as an administrative
fee. This amount is part of the general and administrative expenses
incurred by the Partnership.

In some instances the Managing General Partner and certain officers and
employees may be working interest owners in an oil and gas property in
which the Partnership also has a working interest. Certain properties in
which the Partnership has an interest are operated by the Managing General
Partner, who was paid approximately $19,600 for administrative overhead
attributable to operating such properties during 2003.

The terms of the above transactions are similar to ones, which would have
been obtained through arm's length negotiations with unaffiliated third
parties.

Item 14. Principal Accountant Fees and Services

The following table presents fees for professional audit services rendered
by KPMG, LLP for the audit of the Partnership's annual financial statements
for the years ended December 31, 2003 and 2002 and fees billed for other
services rendered by KPMG during those periods.

For the Year Ended December 2003
31, 2002

Audit Fees $8,958 $
4,763
Audit Related Fees -
-
Tax Fees -
-
All Other Fees -
-

TOTAL $8,958 $
4,763

The Audit Committee of the Managing General Partner reviewed and approved,
in advance, all audit and non-audit services provided by KPMG, LLP.





Part IV


Item 15. Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a)(1) Financial Statements:

Included in Part II of this report --

Independent Auditors Report
Balance Sheets
Statements of Operations
Statements of Changes in Partners' Equity
Statements of Cash Flows
Notes to Financial Statements

(2) Schedules required by Article 12 of Regulation S-
X are either omitted because they are not applicable or
because the required information is shown in the
financial statements or the notes thereto.

(3) Exhibits:

4 (a) Certificate of Limited
Partnership of Southwest Oil & Gas Income Fund XI-
A, L.P., dated May 5, 1992. (Incorporated by
reference from the Partnership's Form 10-K for
the fiscal year ended December 31, 1992)

(b) Agreement of Limited
Partnership of Southwest Oil & Gas Income Fund XI-
A, L.P., dated May 5, 1992. (Incorporated by
reference from the Partnership's Form 10-K for
the fiscal year ended December 31, 1992)


31.1 Rule 13a-14(a)/15d-14(a) Certification
31.2 Rule 13a-14(a)/15d-14(a) Certification
32.1 Certification of Chief Executive Officer 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 Chief Financial Officer Pursuant
to 18 U.S.C. Section 1350, as
adopted Pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002

(b) Reports on Form 8-K

There were no reports filed on Form 8-K during the
quarter ended December 31, 2003.


Signatures


Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Partnership has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.


Southwest Oil & Gas Income Fund XI-A,
L.P., a
Delaware limited partnership


By: Southwest Royalties, Inc., Managing
General
Partner


By: /s/ H. H. Wommack, III
------------------------------------------
- -----
H. H. Wommack, III, President


Date: May 12, 2004



In accordance with the Exchange Act, this report has been signed below by
the following persons on behalf of the Registrant and in the capacities and
on the dates indicated.

/s/ H. H. Wommack, III /s/ Bill E. Coggin
- --------------------------- ------------------------
- -------------------- -----------------------
H. H. Wommack, III, Bill E. Coggin,
Chairman of the Board, Executive Vice President
President, Director and and Chief Financial
Chief Executive Officer Officer

Date: May 12, 2004 Date: May 12, 2004


/s/ William P. Nicoletti /s/ James N. Chapman
- --------------------------- ------------------------
- -------------------- -----------------------
William P. Nicoletti, James N. Chapman,
Director Director

Date: May 10, 2004 Date: May 12, 2004


/s/ Richard D. Rinehart /s/ Joseph J. Radecki,
Jr.
- --------------------------- ------------------------
- -------------------- -----------------------
Richard D. Rinehart, Joseph J. Radecki, Jr.,
Director Director

Date: May 12, 2004 Date: May 12, 2004


/s/ Herbert C. Williamson,
III
- --------------------------- ------------------------
- -------------------- -----------------------
Herbert C. Williamson, III, John M. White, Director
Director

Date: May 11, 2004 Date:




SECTION 302 CERTIFICATION Exhibit 31.1


I, H.H. Wommack, III, certify that:

1. I have reviewed this annual report on Form 10-K of Southwest Oil & Gas
Income Fund XI-A, L.P.

2.Based on my knowledge, this report does not contain any untrue statement
of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered
by this report;

3.Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material
respects the financial condition, results of operations and cash flows
of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for
establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15-15(e)) and internal
control over financial reporting (as defined in Exchange Act Rules 13a-
15(f) and 15d-15(f) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this report is being prepared;

b)Designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, 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;

c)Evaluated the effectiveness of the registrant's disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end
of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant's internal
control over financial reporting that occurred during the registrant's
most recent fiscal quarter (the registrant's fourth fiscal quarter in
the case of an annual report) that has materially affected, or is
reasonably likely to materially affect, the registrant's internal
control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based
on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent
functions):

a)All significant deficiencies and material weaknesses in the design or
operation of internal controls over financial reporting which
reasonably likely to adversely affect the registrant's ability to
record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal
controls over financial reporting.


Date: May 12, 2004 /s/ H. H. Wommack, III
H. H. Wommack, III
Chairman, President and Chief Executive
Officer
of Southwest Royalties, Inc., the
Managing General Partner of
Southwest Oil & Gas Income Fund XI-A,
L.P.




SECTION 302 CERTIFICATION Exhibit 31.2


I, Bill E. Coggin, certify that:

1. I have reviewed this annual report on Form 10-K of Southwest Oil & Gas
Income Fund XI-A, L.P.

2.Based on my knowledge, this report does not contain any untrue statement
of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered
by this report;

3.Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material
respects the financial condition, results of operations and cash flows
of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for
establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15-15(e)) and internal
control over financial reporting (as defined in Exchange Act Rules 13a-
15(f) and 15d-15(f) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this report is being prepared;

b)Designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, 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;

c)Evaluated the effectiveness of the registrant's disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end
of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant's internal
control over financial reporting that occurred during the registrant's
most recent fiscal quarter (the registrant's fourth fiscal quarter in
the case of an annual report) that has materially affected, or is
reasonably likely to materially affect, the registrant's internal
control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based
on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent
functions):

a)All significant deficiencies and material weaknesses in the design or
operation of internal controls over financial reporting which
reasonably likely to adversely affect the registrant's ability to
record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal
controls over financial reporting.


Date: May 12, 2004 /s/ Bill E. Coggin
Bill E. Coggin
Executive Vice President
and Chief Financial Officer of
Southwest Royalties, Inc., the
Managing General Partner of
Southwest Oil & Gas Income Fund XI-A,
L.P.




CERTIFICATION PURSUANT TO
Exhibit 32.1
19 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Annual Report of Southwest Oil & Gas Income
Fund XI-A, L.P. (the "Company") on Form 10-K for the period ending December
31, 2003 as filed with the Securities and Exchange Commission on the date
hereof (the "Report"), I, H.H. Wommack, III, Chief Executive Officer of the
Managing General Partner of the Company, certify, pursuant to 18 U.S.C.
1350, as adopted pursuant to 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all
material respects, the financial condition and
results of operation of the
Company.


Date: May 12, 2004




/s/ H.H. Wommack, III
H. H. Wommack, III
Chairman, President, Director and Chief Executive Officer
of Southwest Royalties, Inc., the
Managing General Partner of
Southwest Oil & Gas Income Fund XI-A, L.P.


CERTIFICATION PURSUANT TO Exhibit 32.2
19 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Annual Report of Southwest Oil & Gas Income Fund
XI-A, L.P. (the "Company") on Form 10-K for the period ending December 31,
2003 as filed with the Securities and Exchange Commission on the date
hereof (the "Report"), I, Bill E. Coggin, Chief Financial Officer of the
Managing General Partner of the Company, certify, pursuant to 18 U.S.C.
1350, as adopted pursuant to 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all
material respects, the financial condition and
results of operation of the
Company.


Date: May 12, 2004




/s/ Bill E. Coggin
Bill E. Coggin
Executive Vice President
and Chief Financial Officer of
Southwest Royalties, Inc., the
Managing General Partner of
Southwest Oil & Gas Income Fund XI-A, L.P.