1 of 19 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 (Mark One) (X) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 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 0-18996 SOUTHWEST OIL & GAS 1990-91 INCOME PROGRAM Southwest Oil & Gas Income Fund X-A, L.P. (Exact name of registrant as specified in its limited partnership agreement) Delaware 75-2310854 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 407 N. Big Spring, Suite 300 Midland, Texas 79701 (Address of principal executive offices) (915) 686-9927 (Registrant's telephone number, including area code) Indicate by check mark whether registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days: Yes X No___ The total number of pages contained in this report is 19 PART I. - FINANCIAL INFORMATION Item 1. Financial Statements The unaudited condensed financial statements included herein have been prepared by the Registrant (herein also referred to as the "Partnership") in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments necessary for a fair presentation have been included and are of a normal recurring nature. The financial statements should be read in conjunction with the audited financial statements and the notes thereto for the year ended December 31, 2002, which are found in the Registrant's Form 10-K Report for 2002 filed with the Securities and Exchange Commission. The December 31, 2002 balance sheet included herein has been taken from the Registrant's 2002 Form 10-K Report. Operating results for the three month period ended March 31, 2003 are not necessarily indicative of the results that may be expected for the full year. Southwest Oil & Gas Income Fund X-A, L.P. Balance Sheets March December 31, 31, 2003 2002 ----- ----- (unaudit ed) Assets - -------- Current assets: Cash and cash equivalents $ 4,126 4,131 Receivable from Managing 9,537 - General Partner -------- -------- ----- ---- Total current assets 13,663 4,131 -------- -------- ----- ---- Oil and gas properties - using the full- cost method of accounting 3,939,10 3,829,91 4 7 Less accumulated depreciation, depletion and 3,748,91 3,717,38 amortization 8 6 -------- -------- ----- ---- Net oil and gas 190,186 112,531 properties -------- -------- ----- ---- $ 203,849 116,662 ======= ======= Liabilities and Partners' Equity - ---------------------------- - ------------ Current liabilities: Distributions payable $ 406 410 Payable to Managing General - 19,362 Partner -------- -------- ---- ---- Total current liabilities 406 19,772 -------- -------- ---- ---- Other long term liabilities 301,752 - -------- -------- ---- ---- Partners' equity: General partners (37,505) (21,138) Limited partners (60,804) 118,028 -------- -------- ---- ---- Total partners' equity (98,309) 96,890 -------- -------- ---- ---- $ 203,849 116,662 ======= ======= Southwest Oil & Gas Income Fund X-A, L.P. Statements of Operations (unaudited) Three Months Ended March 31, 2003 2002 ----- ----- Revenues - ------------- Oil and gas $ 109,095 68,977 Interest 56 - -------- -------- -- -- 109,151 68,977 -------- -------- -- -- Expenses - ------------ Production 57,873 59,225 General and administrative 21,091 21,033 Depreciation, depletion and 3,000 2,000 amortization Accretion 5,917 - -------- -------- -- -- 87,881 82,258 -------- -------- -- -- Net income (loss) before 21,270 (13,281) cumulative effect Cumulative effect of change (216,469 - in accounting principle ) -------- -------- -- -- Net income (loss) $ (195,199 (13,281) ) ====== ====== Net income (loss) allocated to: Managing General Partner $ (14,730) (1,015) ====== ====== General partner $ (1,637) (113) ====== ====== Limited partners $ (178,832 (12,153) ) ====== ====== Per limited partner unit $ (17.06) (1.16) ====== ====== Southwest Oil & Gas Income Fund X-A, L.P. Statements of Cash Flows (unaudited) Three Months Ended March 31, 2003 2002 ----- ----- Cash flows from operating activities: Cash received from sales of oil $ 82,061 64,769 and gas Cash paid to suppliers (80,829) (79,668) Interest received 56 - -------- -------- -- --- Net cash provided by (used in) 1,288 (14,899) operating activities -------- -------- -- --- Cash flows used in investing activities: Additions to oil and gas (1,289) (2,357) properties -------- -------- -- --- Cash flows used in financing activities: Distributions to partners (4) - -------- -------- -- --- Net increase (decrease) in cash (5) (17,256) and cash equivalents Beginning of period 4,131 21,313 -------- -------- -- --- End of period $ 4,126 4,057 ====== ====== Reconciliation of net income (loss) to net cash provided by (used in) operating activities: Net income (loss) $ (195,199 (13,281) ) Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Depreciation, depletion and 3,000 2,000 amortization Accretion 5,917 - Cumulative effect of change in 216,469 - accounting principle Increase in receivables (27,034) (4,208) (Decrease) increase in payables (1,865) 590 -------- -------- -- --- Net cash provided by (used in) $ 1,288 (14,899) operating activities ====== ====== Noncash investing and financing activities: Increase in oil and gas properties - Adoption $ 79,366 - of SFAS No.143 ====== ====== Southwest Oil & Gas Income Fund X-A, L.P. (a Delaware limited partnership) Notes to Financial Statements 1. Organization Southwest Oil and Gas Income Fund X-A, L.P. was organized under the laws of the state of Delaware on January 29, 1990, 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 sells 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. Revenues, costs, and expenses are allocated as follows: Limited General Partners Partners -------- -------- -- --- Interest income on capital 100% - contributions Oil and gas sales 90% 10% All other revenues 90% 10% Organization and offering 100% - costs (1) Syndication costs 100% - Amortization of organization 100% - costs Property acquisition costs 100% - Gain/loss on property 90% 10% disposition Operating and administrative 90% 10% costs (2) Depreciation, depletion and amortization of oil and as properties 100% - All other costs 90% 10% (1) All organization costs in excess of 3% of initial capital contributions will be paid by the Managing General Partner and will be treated as a capital contribution. The Partnership paid the Managing General Partner an amount equal to 3% of initial capital contributions for such organization costs. (2) Administrative costs in any year which exceed 2% of capital contributions shall be paid by the Managing General Partner and will be treated as a capital contribution. 2. Summary of Significant Accounting Policies The interim financial information as of March 31, 2003, and for the three months ended March 31, 2003, is unaudited. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted in this Form 10-Q pursuant to the rules and regulations of the Securities and Exchange Commission. However, in the opinion of management, these interim financial statements include all the necessary adjustments to fairly present the results of the interim periods and all such adjustments are of a normal recurring nature. The interim consolidated financial statements should be read in conjunction with the audited financial statements for the year ended December 31, 2002. Southwest Oil & Gas Income Fund X-A, L.P. (a Delaware limited partnership) Notes to Financial Statements 3. Cumulative effect of change in accounting principle 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 $79,366, a long term liability of approximately $295,835 and a charge of approximately $216,469 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 March 31, 2003, the asset retirement obligation was $301,752, and the increase in the balance from January 1, 2003 of $5,917 is due to accretion expense. The pro forma amount of the asset retirement obligation was measured using information, assumptions and interest rates as of the adoption date of January 1, 2003. Assuming the Partnership had applied the provisions of SFAS No. 143 for the three months ended March 31, 2002 pro forma net income (loss) and related income (loss) per limited partner unit amounts would have been $(18,724) and $(1.79), respectively. Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations General Southwest Oil & Gas Income Fund X-A, L.P. was organized as a Delaware limited partnership on January 29, 1990. The offering of such limited partnership interests began on May 11, 1990 as part of a shelf offering registered under the name Southwest Oil & Gas 1990-91 Income Program. Minimum capital requirements for the Partnership were met on August 15, 1990, with the offering of limited partnership interests concluding on November 30, 1990, with total limited partner contributions of $5,242,000. The Partnership was formed to acquire interests in producing oil and gas properties, to produce and market crude oil and natural gas produced from such properties, and to distribute the net proceeds from operations to the limited and general partners. Net revenues from producing oil and gas properties will not be reinvested in other revenue producing assets except to the extent that production facilities and wells are improved or reworked or where methods are employed to improve or enable more efficient recovery of oil and gas reserves. The economic life of the Partnership thus depends 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, sales of properties, and 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 partners is therefore expected to fluctuate in later years based on these factors. Based on current conditions, management anticipates performing drilling projects and workovers during the years 2003 and 2004 to enhance production. The partnership may have an increase in production volumes for the years 2003 and 2004, otherwise, the partnership will most likely experience the historical production decline, which has approximated 9% per year. 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. Prior to October 1, 2002, the Partnership calculated depletion of oil and gas properties under the units of revenue method. The Partnership changed methods of estimating depletion effective October 1, 2002 to the units of production method. The units of production method is more predominantly used throughout the oil and gas industry and will allow the Partnership to more closely align itself with its peers. 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 three months ended March 31, 2002, 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 March 31, 2003, the net capitalized costs did not exceed the estimated present value of oil and gas reserves. 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 on an annual basis prepared by outside consultants. Quarterly reserve estimates are prepared by the Managing General Partner's internal staff of engineers. 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. Prior to October 1, 2002, the Partnership calculated depletion of oil and gas properties under the units of revenue method. The Partnership changed methods of estimating depletion effective October 1, 2002 to the units of production method. The units of production method is more predominantly used throughout the oil and gas industry and will allow the Partnership to more closely align itself with its peers. Results of Operations A. General Comparison of the Quarters Ended March 31, 2003 and 2002 The following table provides certain information regarding performance factors for the quarters ended March 31, 2003 and 2002: Three Months Ended Percenta ge March 31, Increase 2003 2002 (Decreas e) ----- ----- -------- -- Average price per $ 31.83 71% barrel of oil 18.57 Average price per mcf $ 6.24 176% of gas 2.26 Oil production in 2,800 3,300 (15%) barrels Gas production in mcf 3,200 3,400 (6%) Gross oil and gas $ 109,095 68,977 58% revenue Net oil and gas revenue $ 51,222 9,752 425% Partnership $ - - - distributions Limited partner $ - - - distributions Per unit distribution to limited partners $ - - - Number of limited 10,484 10,484 partner units Revenues The Partnership's oil and gas revenues increased to $109,095 from $68,977 for the quarters ended March 31, 2003 and 2002, respectively, an increase of 58%. The principal factors affecting the comparison of the quarters ended March 31, 2003 and 2002 are as follows: 1. The average price for a barrel of oil received by the Partnership increased during the quarter ended March 31, 2003 as compared to the quarter ended March 31, 2002 by 71%, or $13.26 per barrel, resulting in an increase of approximately $37,100 in revenues. Oil sales represented 82% of total oil and gas sales during the quarter ended March 31, 2003 as compared to 89% during the quarter ended March 31, 2002. The average price for an mcf of gas received by the Partnership increased during the same period by 176%, or $3.98 per mcf, resulting in an increase of approximately $12,700 in revenues. The total increase in revenues due to the change in prices received from oil and gas production is approximately $49,800. 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 500 barrels or 15% during the quarter ended March 31, 2003 as compared to the quarter ended March 31, 2002, resulting in a decrease of approximately $9,300 in revenues. Gas production decreased approximately 200 mcf or 6% during the same period, resulting in a decrease of approximately $500 in revenues. The total decrease in revenues due to the change in production is approximately $9,800. Costs and Expenses Total costs and expenses increased to $87,881 from $82,258 for the quarters ended March 31, 2003 and 2002, respectively, an increase of 7%. The increase is a direct result of the accretion expense associated with our long term liability related to expected abandonment costs of our oil and natural gas properties, general and administrative expense and depletion expense, partially offset by a decrease in lease operating costs. 1. Lease operating costs and production taxes were 2% lower or approximately $1,400 less during the quarter ended March 31, 2003 as compared to the quarter ended March 31, 2002. 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 less than 1% or approximately $60 during the quarter ended March 31, 2003 as compared to the quarter ended March 31, 2002. 3. Depletion expense increased to $3,000 for the quarter ended March 31, 2003 from $2,000 for the same period in 2002. This represents an increase of 50%. Prior to October 1, 2002, the Partnership calculated depletion of oil and gas properties under the units of revenue method. The Partnership changed methods of estimating depletion effective October 1, 2002 to the units of production method. The units of production method is more predominantly used throughout the oil and gas industry and will allow the Partnership to more closely align itself with its peers. There was no effect of this change in estimate if the units of production method were applied to 2002. The contributing factors to the increase in depletion expense is in relation to the BOE depletion rate for the quarter ended March 31, 2003 was $1.00 applied to 3,333 BOE as compared to $.63 applied to 3,867 BOE for the same period. Cumulative effect of change in accounting principle 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 $79,366, a long term liability of approximately $295,835 and a charge of approximately $216,469 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 March 31, 2003, the asset retirement obligation was $301,752, and the increase in the balance from January 1, 2003 of $5,917 is due to accretion expense. The pro forma amount of the asset retirement obligation was measured using information, assumptions and interest rates as of the adoption date of January 1, 2003. Assuming the Partnership had applied the provisions of SFAS No. 143 for the three months ended March 31, 2002 pro forma net income (loss) and related income (loss) per limited partner unit amounts would have been $(18,724) and $(1.79), respectively. 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, other than the ones noted above, nor does it anticipate any such change. Cash flows provided by (used in) operating activities were approximately $1,300 in the quarter ended March 31, 2003 as compared to approximately $(14,900) in the quarter ended March 31, 2002. The primary source of the 2003 cash flow from operating activities was operations. Cash flows used in investing activities were approximately $1,300 in the quarter ended March 31, 2003 as compared to approximately $2,400 in the quarter ended March 31, 2002. The principle use of the 2003 cash flow from investing activities was the additions to oil and gas properties. There were no material cash flows used in financing activities in the quarter ended March 31, 2003. There were no cash flows used in financing activities in the quarter ended March 31, 2002. There were no distributions during the quarter ended March 31, 2003 and 2002. Since inception of the Partnership, cumulative monthly cash distributions of $2,827,732 have been made to the partners. As of March 31, 2003, $2,602,574 or $248.24 per limited partner unit has been distributed to the limited partners, representing a 50% return of the capital contributed. As of March 31, 2003, the Partnership had approximately $13,300 in working capital. The Managing General Partner knows of no unusual contractual commitments. Although the partnership held many long- lived properties at inception, because of the restrictions on property development imposed by the partnership agreement, the Managing General Partner anticipates that at some point in the near future, the partnership will need to be liquidated. Maintenance of properties and administrative expenses are increasing relative to production. As the properties continue to deplete, maintenance of properties and administrative costs as a percentage of production will continue to increase. As the partnerships properties have matured, the net cash flows from operations for the partnership have generally declined, except in periods of substantially increased commodity pricing. Since the partnership cannot develop their properties, the producing reserves continue to deplete causing cash flow to steadily decline. Liquidity - Managing General Partner The Managing General Partner has a highly leveraged capital structure with approximately $124.0 million of principal due between December 31, 2002 and December 31, 2004. The Managing General Partner is constantly monitoring its cash position and its ability to meet its financial obligations as they become due, and in this effort, is continually exploring various strategies for addressing its current and future liquidity needs. The Managing General Partner regularly pursues and evaluates recapitalization strategies and acquisition opportunities (including opportunities to engage in mergers, consolidations or other business combinations) and at any given time may be in various stages of evaluating such opportunities. Based on current production, commodity prices and cash flow from operations, the Managing General Partner has adequate cash flow to fund debt service, developmental projects and day to day operations, but it is not sufficient to build a cash balance which would allow the Managing General Partner to meet its debt principal maturities scheduled for 2004. Therefore the Managing General Partner must renegotiate the terms of its various obligations or seek new lenders or equity investors in order to meet its financial obligations, specifically those maturing in 2004. The Managing General Partner may be required to dispose of certain assets in order to meet its obligations. There can be no assurance that the Managing General Partner's debt restructuring efforts will be successful or that the debt holders will agree to a course of action consistent with the Managing General Partner's requirements in restructurings the obligations. Furthermore, there can be no assurance that the sales of assets can be successfully accomplished on terms acceptable to the Managing General Partner. Recent Accounting Pronouncements The FASB has issued Statement No. 143 "Accounting for Asset Retirement Obligations" which establishes requirements for the accounting of removal-type costs associated with asset retirements. The standard is effective for fiscal years beginning after June 15, 2002, with earlier application encouraged. This statement has been adopted by the Partnership effective January 1, 2003. The transition adjustment resulting from the adoption of SFAS No. 143 has been reported as a cumulative effect of a change in accounting principle. In April 2004, the FASB issued Statement of Financial Accounting Standards No. 149, Amendment of Statement No. 133 on Derivative Instruments and Hedging Activities ("SFAS No. 149"). SFAS No. 149 amendments require that contracts with comparable characteristics be accounted for similarly, clarifies when a contract with an initial investment meets the characteristic of a derivative and clarifies when a derivative requires special reporting in the statement of cash flows. SFAS No. 149 is effective for hedging relationships designated and for contracts entered into or modified after June 30, 2003, except for provisions that relate to SFAS No. 133 Statement Implementation Issues that have been effective for fiscal quarters prior to June 15, 2003, should be applied in accordance with their respective effective dates and certain provisions relating to forward purchases or sales of when-issued securities or other securities that do not yet exist, should be applied to existing contracts as well as new contracts entered into after June 30, 2003. Assessment by the Managing General Partner revealed this pronouncement to have no impact on the partnership. Item 3. Quantitative and Qualitative Disclosures About Market Risk The Partnership is not a party to any derivative or embedded derivative instruments. Item 4. Controls and Procedures (a) Evaluation of Disclosure Controls and Procedures. The chief executive officer and chief financial officer of the Partnership's managing general partner have evaluated the effectiveness of the design and operation of the Partnership's disclosure controls and procedures (as defined in Exchange Act Rule 13a-14(c)) as of a date within 90 days of the filing date of this quarterly report. Based on that evaluation, the chief executive officer and chief financial officer have concluded that the Partnership's disclosure controls and procedures are effective to ensure that material information relating to the Partnership and the Partnership's consolidated subsidiaries is made known to such officers by others within these entities, particularly during the period this quarterly report was prepared, in order to allow timely decisions regarding required disclosure. (b) Changes in Internal Controls. There have not been any significant changes in the Partnership's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation. PART II. - OTHER INFORMATION Item 1. Legal Proceedings None Item 2. Changes in Securities None Item 3. Defaults Upon Senior Securities None Item 4. Submission of Matter to a Vote of Security Holders None Item 5. Other Information None Item 6. Exhibits and Reports on Form 8-K (a) Exhibits: 99.1 Certification pursuant to 18 U.S.C. Section 1350 99.2 Certification pursuant to 18 U.S.C. Section 1350 (b) Reports on Form 8-K: No reports on Form 8-K were filed during the quarter for which this report is filed. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. SOUTHWEST OIL & GAS INCOME FUND X-A, L.P. a Delaware limited partnership By: Southwest Royalties, Inc. Managing General Partner By: /s/ Bill E. Coggin ---------------------------------- - --- Bill E. Coggin, Vice President and Chief Financial Officer Date: May 15, 2003 CERTIFICATIONS I, H.H. Wommack, III, certify that: 1. I have reviewed this quarterly report on Form 10-Q of Southwest Oil & Gas Income Fund X-A, L.P.; 2. Based on my knowledge, this quarterly 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 quarterly report; 3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly report; 4. The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have: a) designed such disclosure controls and procedures 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 quarterly report is being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures as of a date within 90 days prior to the filing date of this quarterly report (the "Evaluation Date"); and c) presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures based on our evaluation as of the Evaluation Date; 5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation, 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 in the design or operation of internal controls which could adversely affect the registrant's ability to record, process, summarize and report financial data and have identified for the registrant's auditors any material weaknesses in internal controls; 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; and 6. The registrant's other certifying officers and I have indicated in this quarterly report whether or not there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Date: May 15, 2003 /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 X-A, L.P. CERTIFICATIONS I, Bill E. Coggin, certify that: 1. I have reviewed this quarterly report on Form 10-Q of Southwest Oil & Gas Income Fund X-A, L.P.; 2. Based on my knowledge, this quarterly 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 quarterly report; 3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly report; 4. The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have: a) designed such disclosure controls and procedures 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 quarterly report is being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures as of a date within 90 days prior to the filing date of this quarterly report (the "Evaluation Date"); and c) presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures based on our evaluation as of the Evaluation Date; 5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation, 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 in the design or operation of internal controls which could adversely affect the registrant's ability to record, process, summarize and report financial data and have identified for the registrant's auditors any material weaknesses in internal controls; 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; and 6. The registrant's other certifying officers and I have indicated in this quarterly report whether or not there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Date: May 15, 2003 /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 X-A, L.P. CERTIFICATION PURSUANT TO 19 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report of Southwest Oil & Gas Income Fund X-A, Limited Partnership (the "Company") on Form 10-Q for the period ending March 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 15, 2003 /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 X-A, L.P. CERTIFICATION PURSUANT TO 19 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report of Southwest Oil & Gas Income Fund X-A, Limited Partnership (the "Company") on Form 10-Q for the period ending March 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: (3) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (4) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operation of the Company. Date: May 15, 2003 /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 X-A, L.P.