Page 14 of 20 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 September 30, 2002 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 0-19601 SOUTWEST ROYALTIES INSTITUTIONAL 1990-91 INCOME PROGRAM Southwest Royalties Institutional Income Fund X-B, L.P. (Exact name of registrant as specified in its limited partnership agreement) Delaware 75-2332174 (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 20. 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 note thereto for the year ended December 31, 2001, which are found in the Registrant's Form 10-K Report for 2001 filed with the Securities and Exchange Commission. The December 31, 2001 balance sheet included herein has been taken from the Registrant's 2001 Form 10-K Report. Operating results for the three and nine month periods ended September 30, 2002 are not necessarily indicative of the results that may be expected for the full year. Southwest Royalties Institutional Income Fund X-B, L.P. Balance Sheets September December 30, 31, 2002 2001 ----------- --------- (unaudited) Assets - ------ Current assets: Cash and cash equivalents $ 50,906 48,952 Receivable from Managing General 73,365 53,962 Partner --------- --------- Total current assets 124,271 102,914 --------- --------- Oil and gas properties - using the full- cost method of accounting 3,888,882 3,888,882 Less accumulated depreciation, depletion and amortization 3,531,853 3,510,853 --------- --------- Net oil and gas properties 357,029 378,029 --------- --------- $ 481,300 480,943 ========= ========= Liabilities and Partners' Equity - -------------------------------- Current liability - distribution $ 25 37 payable --------- --------- Partners' equity: General partners (39,694) (41,831) Limited partners 520,969 522,737 --------- --------- Total partners' equity 482,275 480,906 --------- --------- $ 481,300 480,943 ========= ========= Southwest Royalties Institutional Income Fund X-B, L.P. Statements of Operations (unaudited) Three Months Nine Months Ended Ended September 30, September 30, 2002 2001 2002 2001 ---- ---- ---- ---- Revenues - -------- Income from net profits $ 86,970 65,413 176,030 310,596 interests Interest 188 684 427 2,700 Miscellaneous settlement 3,660 - 3,660 - ------- ------- ------- ------- 90,818 66,097 180,117 313,296 ------- ------- ------- ------- Expenses - -------- General and administrative 20,260 19,160 58,748 58,019 Depreciation, depletion and amortization 7,000 22,000 21,000 44,000 ------- ------- ------- ------- 27,260 41,160 79,748 102,019 ------- ------- ------- ------- Net income $ 63,558 24,937 100,369 211,277 ======= ======= ======= ======= Net income allocated to: Managing General Partner $ 6,350 4,224 10,923 22,975 ======= ======= ======= ======= General Partner $ 706 470 1,214 2,553 ======= ======= ======= ======= Limited Partners $ 56,502 20,243 88,232 185,749 ======= ======= ======= ======= Per limited partner unit $ 5.05 1.81 7.89 16.61 ======= ======= ======= ======= Southwest Royalties Institutional Income Fund X-B, L.P. Statements of Cash Flows (unaudited) Nine Months Ended September 30, 2002 2001 ---- ---- Cash flows from operating activities Cash received from income from net profits interests $ 154,014 348,301 Cash paid to suppliers (56,135 (55,741) ) Interest received 427 2,700 Miscellaneous settlement 3,660 - ------- ------- Net cash provided by operating activities 101,966 295,260 ------- ------- Cash flows used in financing activities Distributions to partners (100,01 (325,000 2) ) ------- ------- Net decrease in cash and cash equivalents (1,954) (29,740) Beginning of period 48,952 80,863 ------- ------- End of period $ 50,906 51,123 ======= ======= Reconciliation of net income to net cash provided by operating activities Net income $ 100,369 211,277 Adjustments to reconcile net income to net cash provided by operating activities Depreciation, depletion and amortization 21,000 44,000 (Increase) decrease receivables (22,016 37,705 ) Increase in payables 2,613 2,278 ------- ------- Net cash provided by operating activities $ 101,966 295,260 ======= ======= Southwest Royalties Institutional Income Fund X-B, L.P. (a Delaware limited partnership) Notes to Financial Statements 1. Organization Southwest Royalties Institutional Income Fund X-B, L.P. was organized under the laws of the state of Delaware on November 27, 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 contributions 100% - Oil and gas sales 90% 10% All other revenues 90% 10% Organization and offering costs (1) 100% - Amortization of organization costs 100% - Property acquisition costs 100% - Gain/loss on property disposition 90% 10% Operating and administrative costs (2) 90% 10% Depreciation, depletion and amortization of oil and gas 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 September 30, 2002, and for the three and nine months ended September 30, 2002, 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, 2001. 3. Subsequent Event On October 17, 2002, Southwest Royalties, Inc. the Managing General Partner filed an S-4 "Registration of Securities, Business Combinations" with the Securities and Exchange Commission. The S-4 relates to a proposed plan of merger of twenty-one limited partnerships. Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations General Southwest Royalties Institutional Income Fund X-B, L.P. was organized as a Delaware limited partnership on November 27, 1990. The offering of such limited partnership interests began December 1, 1990 as part of a shelf offering registered under the name Southwest Royalties Institutional 1990- 91 Income Program. Minimum capital requirements for the Partnership were met on March 11, 1991, with the offering of limited partnership interests concluding September 30, 1991, with total limited partner contributions of $5,590,500. The Partnership was formed to acquire royalty and net profits 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. 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 farmout 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 no workovers during 2002 to enhance production. The partnership will most likely experience the historical production decline of approximately 10% 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. The Partnership's policy for depreciation, depletion and amortization of oil and gas properties is computed under the units of revenue method. Under the units of revenue method, depreciation, depletion and amortization is computed on the basis of current gross revenues from production in relation to future gross revenues, based on current prices, from estimated production of proved oil and gas reserves. 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. For the quarter ended September 30, 2002, the net capitalized cost did not exceed the estimated present value of oil and gas reserves. Under the units of revenue method, the Partnership computes the provision by multiplying the total unamortized cost of oil and gas properties by an overall rate determined by dividing (a) oil and gas revenues during the period by (b) the total future gross oil and gas revenues as estimated by the Partnership's independent petroleum consultants. It is reasonably possible that those estimates of anticipated future gross revenues, the remaining estimated economic life of the product, or both could be changed significantly in the near term due to the potential fluctuation of oil and gas prices or production. The depletion estimate would also be affected by this change. The Partnership's interest in oil and gas properties consists of net profits interests in proved properties located within the continental United States. A net profits interest is created when the owner of a working interest in a property enters into an arrangement providing that the net profits interest owner will receive a stated percentage of the net profit from the property. The net profits interest owner will not otherwise participate in additional costs and expenses of the property. The Partnership recognizes income from its net profits interest in oil and gas property on an accrual basis, while the quarterly cash distributions of the net profits interest are based on a calculation of actual cash received from oil and gas sales, net of expenses incurred during that quarterly period. The net profits interest is a calculated revenue interest that burdens the underlying working interest in the property, and the net profits interest owner is not responsible for the actual development or production expenses incurred. Accordingly, if the net profits interest calculation results in expenses incurred exceeding the oil and gas income received during a quarter, no cash distribution is due to the Partnership's net profits interest until the deficit is recovered from future net profits. The Partnership accrues a quarterly loss on its net profits interest provided there is a cumulative net amount due for accrued revenue as of the balance sheet date. 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. The Partnership's policy for depreciation, depletion and amortization of oil and gas properties is computed under the units of revenue method. Under the units of revenue method, depreciation, depletion and amortization is computed on the basis of current gross revenues from production in relation to future gross revenues, based on current prices, from estimated production of proved oil and gas reserves. Results of Operations A. General Comparison of the Quarters Ended September 30, 2002 and 2001 The following table provides certain information regarding performance factors for the quarters ended September 30, 2002 and 2001: Three Months Ended Percentage September 30, Increase 2002 2001 (Decrease) ---- ---- --------- Average price per barrel of oil $ 26.74 24.89 7% Average price per mcf of gas $ 2.80 2.47 13% Oil production in barrels 5,100 5,400 (6%) Gas production in mcf 17,600 19,600 (10%) Income from net profits interests $ 86,970 65,413 33% Partnership distributions $ 50,000 100,000 (50%) Limited partner distributions $ 45,000 90,000 (50%) Per unit distribution to limited partners $ 4.02 8.05 (50%) Number of limited partner units 11,181 11,181 Revenues The Partnership's income from net profits interests increased to $86,970 from $65,413 for the quarters ended September 30, 2002 and 2001, respectively, an increase of 33%. The principal factors affecting the comparison of the quarters ended September 30, 2002 and 2001 are as follows: 1. The average price for a barrel of oil received by the Partnership increased during the quarter ended September 30, 2002 as compared to the quarter ended September 30, 2001 by 7%, or $1.85 per barrel, resulting in an increase of approximately $9,400 in income from net profits interests. Oil sales represented 73% of total oil and gas sales during the quarter ended September 30, 2002 as compared to 74% during the quarter ended September 30, 2001. The average price for an mcf of gas received by the Partnership increased during the same period by 13%, or $.33 per mcf, resulting in an increase of approximately $5,800 in income from net profits interests. The total increase in income from net profits interests due to the change in prices received from oil and gas production is approximately $15,200. 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 300 barrels or 6% during the quarter ended September 30, 2002 as compared to the quarter ended September 30, 2001, resulting in a decrease of approximately $7,500 in income from net profits interests. Gas production decreased approximately 2,000 mcf or 10% during the same period, resulting in a decrease of approximately $4,900 in income from net profits interests. The decrease in income from net profits interests due to the change in production is approximately $12,400. 3. Lease operating costs and production taxes were 6% lower, or approximately $6,700 less during the quarter ended September 30, 2002 as compared to the quarter ended September 30, 2001. Costs and Expenses Total costs and expenses decreased to $27,260 from $41,160 for the quarters ended September 30, 2002 and 2001, respectively, a decrease of 34%. The decrease is the result of lower depletion expense, partially offset by an increase in general and administrative expense. 1. General and administrative costs consists of independent accounting and engineering fees, computer services, postage, and Managing General Partner personnel costs. General and administrative costs increased 6% or approximately $1,100 during the quarter ended September 30, 2002 as compared to the quarter ended September 30, 2001. 2. Depletion expense decreased to $7,000 for the quarter ended September 30, 2002 from $22,000 for the same period in 2001. This represents a decrease of 68%. Depletion is calculated using the units of revenue method of amortization based on a percentage of current period gross revenues to total future gross oil and gas revenues, as estimated by the Partnership's independent petroleum consultants. The contributing factors to the decrease in depletion expense between the comparative periods were the increase in the price of oil and gas used to determine the Partnership's reserves for October 1, 2002 as compared to 2001, and the increase in oil and gas revenues received by the Partnership during 2002 as compared to 2001. B. General Comparison of the Nine Month Periods Ended September 30, 2002 and 2001 The following table provides certain information regarding performance factors for the nine month periods ended September 30, 2002 and 2001: Nine Months Ended Percentage September 30, Increase 2002 2001 (Decrease) ---- ---- --------- Average price per barrel of oil $ 23.33 26.02 (10%) Average price per mcf of gas $ 2.54 4.01 (37%) Oil production in barrels 15,000 16,200 (7%) Gas production in mcf 51,300 57,200 (10%) Income from net profits interests $ 176,030 310,596 (43%) Partnership distributions $ 100,000 325,000 (69%) Limited partner distributions $ 90,000 292,500 (69%) Per unit distribution to limited partners $ 8.05 26.16 (69%) Number of limited partner units 11,181 11,181 Revenues The Partnership's income from net profits interests decreased to $176,030 from $310,596 for the nine months ended September 30, 2002 and 2001, respectively, a decrease of 43%. The principal factors affecting the comparison of the nine months ended September 30, 2002 and 2001 are as follows: 1. The average price for a barrel of oil received by the Partnership decreased during the nine months ended September 30, 2002 as compared to the nine months ended September 30, 2001 by 10%, or $2.69 per barrel, resulting in a decrease of approximately $40,400 in income from net profits interests. Oil sales represented 73% of total oil and gas sales during the nine months ended September 30, 2002 and 65% during the nine months ended September 30, 2001. The average price for an mcf of gas received by the Partnership decreased during the same period by 37%, or $1.47 per mcf, resulting in a decrease of approximately $75,400 in income from net profits interests. The total decrease in income from net profits interests due to the change in prices received from oil and gas production is approximately $115,800. 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 1,200 barrels or 7% during the nine months ended September 30, 2002 as compared to the nine months ended September 30, 2001, resulting in a decrease of approximately $31,200 in income from net profits interests. Gas production decreased approximately 5,900 mcf or 10% during the same period, resulting in a decrease of approximately $23,700 in income from net profits interests. The total decrease in income from net profits interests due to the change in production is approximately $54,900. 3. Lease operating costs and production taxes were 11% lower, or approximately $35,800 less during the nine months ended September 30, 2002 as compared to the nine months ended September 30, 2001. Costs and Expenses Total costs and expenses decreased to $79,748 from $102,019 for the nine months ended September 30, 2002 and 2001, respectively, a decrease of 22%. The decrease is the result of lower depletion expense, partially offset by an increase in general and administrative expense. 1. General and administrative costs consists of independent accounting and engineering fees, computer services, postage, and Managing General Partner personnel costs. General and administrative costs increased 1% or approximately $700 during the nine months ended September 30, 2002 as compared to the nine months ended September 30, 2001. 2. Depletion expense decreased to $21,000 for the nine months ended September 30, 2002 from $44,000 for the same period in 2001. This represents a decrease of 52%. Depletion is calculated using the units of revenue method of amortization based on a percentage of current period gross revenues to total future gross oil and gas revenues, as estimated by the Partnership's independent petroleum consultants. The contributing factors to the decrease in depletion expense between the comparative periods were the increase in the price of oil and gas used to determine the Partnership's reserves for October 1, 2002 as compared to 2001, and the decrease in oil and gas revenues received by the Partnership during 2002 as compared to 2001. 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 $102,000 in the nine months ended September 30, 2002 as compared to approximately $295,300 in the nine months ended September 30, 2001. The primary source of the 2002 cash flow from operating activities was profitable operations. Cash flows used in financing activities were approximately $100,000 in the nine months ended September 30, 2002 as compared to approximately $325,000 in the nine months ended September 30, 2001. The only use in financing activities was the distributions to partners. Total distributions during the nine months ended September 30, 2002 were $100,000 of which $90,000 was distributed to the limited partners and $10,000 to the general partners. The per unit distribution to limited partners during the nine months ended September 30, 2002 was $8.05. Total distributions during the nine months ended September 30, 2001 were $325,000 of which $292,500 was distributed to the limited partners and $32,500 to the general partners. The per unit distribution to limited partners during the nine months ended September 30, 2001 was $26.16. The sources for the 2002 distributions of $100,000 were oil and gas operations of approximately $102,000, resulting in excess cash for contingencies or subsequent distributions. The sources for the 2001 distributions of $325,000 were oil and gas operations of approximately $295,300, with the balance from available cash on hand at the beginning of the period. Since inception of the Partnership, cumulative monthly cash distributions of $5,599,098 have been made to the partners. As of September 30, 2002, $5,098,231 or $455.97 per limited partner unit has been distributed to the limited partners, representing a 91% return of the capital contributed. As of September 30, 2002, the Partnership had approximately $124,200 in working capital. The Managing General Partner knows of no unusual contractual commitments and believes the revenues generated from operations are adequate to meet the needs of the Partnership. On October 17, 2002, Southwest Royalties, Inc. the Managing General Partner filed an S-4 "Registration of Securities, Business Combinations" with the Securities and Exchange Commission. The S-4 relates to a proposed plan of merger of twenty-one limited partnerships. 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. The Managing General Partner is currently assessing the impact on the partnerships financial statements. On October 3, 2001, the FASB issued Statements No. 144 "Accounting for the Impairment or Disposal of Long-Lived Assets." This pronouncement supercedes FAS 121 "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed" and eliminates the requirement of Statement 121 to allocate goodwill to long-lived assets to be tested for impairment. The provisions of this statement are effective for financial statements issued for fiscal years beginning after December 15, 2001, and interim periods within those fiscal years. The Managing General Partner believes that the impact from SFAS No. 144 on the Partnerships financial position and results of operation should not be significantly different from that of SFAS No. 121. In April 2002, FASB issued SFAS No. 145, "Rescission of SFAS No. 4, 44, and 64, Amendment of SFAS No. 13, and Technical Corrections." This Statement rescinds SFAS No. 4, "Reporting Gains and Losses from Extinguishment of Debt", and an amendment of that Statement, SFAS No. 64, "Extinguishments of Debt Made to Satisfy Sinking-Fund Requirements". This Statement also rescinds or amends other existing authoritative pronouncements to make various technical corrections, clarify meanings, or describe their applicability under changed conditions. This standard is effective for fiscal years beginning after May 15, 2002. The Managing General Partner believes that the adoption of this statement will not have a significant impact on the Partnerships financial statements. In July 2002, FASB issued SFAS No. 146 "Accounting for Costs Associated with Exit or Disposal Activities" which establishes requirements for financial accounting and reporting for costs associated with exit or disposal activities. This standard is effective for exit or disposal activities initiated after December 31, 2002. The Managing General Partner is currently assessing the impact of this statement on the Partnerships' future financial statements. 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) 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 Royalties Institutional Income Fund X-B, L.P. a Delaware limited partnership By: Southwest Royalties, Inc. Managing General Partner By: /s/ Bill E. Coggin ------------------------------ Bill E. Coggin, Executive Vice President and Chief Financial Officer Date: November 14, 2002 CERTIFICATIONS I, H.H. Wommack, III, certify that: 1. I have reviewed this quarterly report on Form 10-Q of Southwest Royalties Institutional Income Fund X-B, 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: November 14, 2002 /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 Royalties Institutional Income Fund X-B, L.P. CERTIFICATIONS I, Bill E. Coggin, certify that: 1. I have reviewed this quarterly report on Form 10-Q of Southwest Royalties Institutional Income Fund X-B, 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: November 14, 2002 /s/ Bill E. Coggin Bill E. Coggin Executive Vice President and Chief Financial Officer of Southwest Royalties, Inc., the Managing General Partner of Southwest Royalties Institutional Income Fund X-B, L.P.