SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1998 [ ] 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 1-8432 MESA OFFSHORE TRUST (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER) TEXAS 76-6004065 (STATE OF INCORPORATION (I.R.S. EMPLOYER OR ORGANIZATION) IDENTIFICATION NO.) CHASE BANK OF TEXAS, NATIONAL ASSOCIATION CORPORATE TRUST DIVISION 712 MAIN STREET HOUSTON, TEXAS 77002 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE) (713) 216-6369 (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE) Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [ ] Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date. As of August 10, 1998 -- 71,980,216 Units of Beneficial Interest in Mesa Offshore Trust. ================================================================================ PART I -- FINANCIAL INFORMATION ITEM 1. FINANCIAL STATEMENTS MESA OFFSHORE TRUST STATEMENTS OF DISTRIBUTABLE INCOME (UNAUDITED) THREE MONTHS ENDED SIX MONTHS ENDED JUNE 30, JUNE 30, -------------------------- -------------------------- 1998 1997 1998 1997 ------------ ------------ ------------ ------------ Royalty income....................... $ 440,956 $ 1,786,585 $ 1,135,274 $ 2,898,140 Interest income...................... 27,824 35,801 55,581 53,413 General and administrative expense... (144,574) (30,432) (206,990) (650,066) ------------ ------------ ------------ ------------ Distributable income............ $ 324,206 $ 1,791,954 $ 983,865 $ 2,301,487 ============ ============ ============ ============ Distributable income per unit... $ .0045 $ .0248 $ .0137 $ .0319 ============ ============ ============ ============ STATEMENTS OF ASSETS, LIABILITIES AND TRUST CORPUS JUNE 30, DECEMBER 31, 1998 1997 ---------------- ---------------- (UNAUDITED) ASSETS Cash and short-term investments...... $ 2,296,382 $ 2,993,764 Interest receivable.................. 27,824 32,568 Net overriding royalty interest in oil and gas properties............. 380,905,000 380,905,000 Accumulated amortization............. (380,786,721) (380,656,800) ---------------- ---------------- $ 2,442,485 $ 3,274,532 ================ ================ LIABILITIES AND TRUST CORPUS Reserve for Trust expenses........... $ 2,000,000 $ 2,000,000 Distributions payable................ 324,206 1,026,332 Trust corpus (71,980,216 units of beneficial interest authorized and outstanding)........ 118,279 248,200 ---------------- ---------------- $ 2,442,485 $ 3,274,532 ================ ================ (The accompanying notes are an integral part of these financial statements.) 1 MESA OFFSHORE TRUST STATEMENTS OF CHANGES IN TRUST CORPUS (UNAUDITED) THREE MONTHS ENDED SIX MONTHS ENDED JUNE 30, JUNE 30, ---------------------------- ---------------------------- 1998 1997 1998 1997 ------------ -------------- ------------ -------------- Trust corpus, beginning of period.... $ 168,742 $ 1,006,629 $ 248,200 $ 1,062,405 Distributable income................. 324,206 1,791,954 983,865 2,301,487 Distributions to unitholders......... (324,206) (1,791,954) (983,865) (2,301,487) Amortization of net overriding royalty interest........................... (50,463) (89,627) (129,921) (145,403) ------------ -------------- ------------ -------------- Trust corpus, end of period.......... $ 118,279 $ 917,002 $ 118,279 $ 917,002 ============ ============== ============ ============== (The accompanying notes are an integral part of these financial statements.) 2 MESA OFFSHORE TRUST NOTES TO FINANCIAL STATEMENTS (UNAUDITED) NOTE 1 -- TRUST ORGANIZATION The Mesa Offshore Trust (the "Trust") was created effective December 1, 1982 when Mesa Petroleum Co., predecessor to Mesa Limited Partnership, which was the predecessor to MESA Inc., transferred a 99.99% interest in the Mesa Offshore Royalty Partnership (the "Partnership") to the Trust. The Partnership was created to receive and hold a 90% net overriding royalty interest (the "Royalty") in ten producing and nonproducing oil and gas properties located in federal waters offshore Louisiana and Texas (the "Royalty Properties"). Until August 7, 1997, MESA Inc. owned and operated its assets through Mesa Operating Co. ("Mesa"), the operator of the Royalty Properties. Mesa Operating Co. is also the managing general partner of the Partnership (the Managing General Partners). On August 7, 1997, MESA Inc. merged with and into Pioneer Natural Resources Company ("Pioneer") formerly a wholly owned subsidiary of MESA, Inc. and Parker & Parsley Petroleum Company merged with and into Pioneer Natural Resources USA, Inc. (successor to Mesa Operating Co.), a wholly owned subsidiary of Pioneer ("PNR") (collectively, the mergers are referred to herein as the "Merger"). Subsequent to the Merger, Pioneer owns and operates its assets through PNR and is also the managing general partner of the Partnership. As used in this report, the term PNR generally refers to the operator of the Royalty Properties, unless otherwise indicated. STATUS OF THE TRUST In 1996, PNR drilled five wells from the existing "A" platform on the South Marsh Island 155 block. PNR recovered all remaining costs related to the South Marsh Island drilling program as of the February 1997 reporting month. In addition, during the first quarter of 1997, the Trust recovered approximately $.5 million in general and administrative expenses paid from the Trust's reserve fund during the period in which Royalty income was not paid to the Trust, replenishing the Trust's expense reserve fund balance to $2 million. The Trust Indenture provides that the Trust will terminate if the total amount of cash per year received by the Trust falls below certain levels for each of three successive years. The December 31, 1997 reserve report prepared for the Partnership (see the Trust's 1997 Annual Report on Form 10-K) indicates that 95% of future net revenues will be received by the Trust during the next four years. As such, it is possible, depending on the timing of future production, market conditions, the success of future drilling activities, if any, and other matters, that in 1998 the Trust may commence a period of three successive years in which annual net royalty income would be below the termination threshold prescribed in the Indenture, resulting in termination of the Trust pursuant to the terms discussed above. NOTE 2 -- BASIS OF PRESENTATION The accompanying unaudited financial information has been prepared by Chase Bank of Texas, National Association (the "Trustee") in accordance with the instructions to Form 10-Q, and the Trustee believes such information includes all the disclosures necessary to make the information presented not misleading. The information furnished reflects all adjustments which are, in the opinion of the Trustee, necessary for a fair presentation of the results for the interim periods presented. The financial information should be read in conjunction with the financial statements and notes thereto included in the Trust's 1997 Annual Report on Form 10-K. 3 The financial statements of the Trust are prepared on the following basis: (a) Royalty income recorded for a month is the Trust's interest in the amount computed and paid by PNR to the Partnership for such month rather than either the value of a portion of the oil and gas produced by PNR for such month or the amount subsequently determined to be 90% of the net proceeds for such month; (b) Interest income, interest receivable and distributions payable to unitholders include interest to be earned on short-term investments from the financial statement date through the next distribution date; (c) Trust general and administrative expenses are recorded in the month they accrue; (d) Amortization of the net overriding royalty interest, which is calculated on the basis of current royalty income in relation to estimated future royalty income, is charged directly to trust corpus since such amount does not affect distributable income; and (e) Distributions payable are determined on a monthly basis and are payable to unitholders of record as of the last business day of each month. However, cash distributions are made quarterly in January, April, July and October, and include interest earned from the monthly record dates to the date of distribution. This basis for reporting Royalty income is considered to be the most meaningful because distributions to the unitholders for a month are based on net cash receipts for such month. However, it will differ from the basis used for financial statements prepared in accordance with generally accepted accounting principles in several respects. Under such principles, Royalty income for a month would be based on net proceeds from production for such month without regard to when calculated or received and interest income would be calculated only for the periods covered by the financial statements and would exclude interest from the period end to the date of distribution. The instruments conveying the Royalty provide that PNR will calculate and pay the Partnership each month an amount equal to 90% of the net proceeds for the preceding month. Generally, net proceeds means the excess of the amounts received by PNR from sales of oil and gas from the Royalty Properties plus other cash receipts over operating and capital costs incurred. 4 ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS NOTE REGARDING FORWARD-LOOKING STATEMENTS This Form 10-Q includes "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts included in this Form 10-Q, including without limitation the statements under "Management's Discussion and Analysis of Financial Condition and Results of Operations" and Note 1 to the financial statements of the Trust regarding the future net revenues of the Trust, are forward-looking statements. Although Pioneer has advised the Trust that it believes that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. Important factors that could cause actual results to differ materially from expectations ("Cautionary Statements") are disclosed in this Form 10-Q, including without limitation in conjunction with the forward-looking statements included in this Form 10-Q and in the Trust's Form 10-K. All subsequent written and oral forward-looking statements attributable to the Trust or persons acting on its behalf are expressly qualified in their entirety by the Cautionary Statements. INFORMATION SYSTEMS FOR THE YEAR 2000 Pioneer has stated that it will be required to modify its information systems in order to accurately process data referencing the year 2000. Because of the importance of occurrence dates in the oil and gas industry, the consequences of not pursuing these modifications could be very significant to Pioneer's ability to manage and report operating activities. Pioneer has contracted with third parties to perform the software programming changes necessary to correct any existing deficiences. Pioneer has stated that such programming changes are anticipated to be completed and tested by March 1, 1999. FINANCIAL REVIEW During the second quarter of 1998, the Trust had distributable income of $324,206, representing $.0045 per unit, as compared to $1,791,954, representing $.0248 per unit in the second quarter of 1997. The per unit amounts of distributable income for the second quarter of 1998 and 1997 were earned by month as follows: 1998 1997 --------- --------- April................................ $ .0036 $ .0122 May.................................. .0008 .0080 June................................. .0001 .0046 --------- --------- $ .0045 $ .0248 ========= ========= Royalty income decreased to $440,956 in the second quarter of 1998 as compared to $1,786,585 in the second quarter of 1997. The decrease in Royalty income is primarily due to substantially lower production volumes on South Marsh Island blocks 155 and 156 and West Delta blocks 61 and 62 and decreased prices for crude oil, condensate and natural gas liquids in the second quarter of 1998 when compared to the corresponding 1997 period. 5 Production volumes for natural gas decreased to 331,591 Mcf in the second quarter of 1998 from 1,057,041 Mcf in the second quarter of 1997. The average price received for natural gas was $2.21 per Mcf in the second quarter of 1998 compared to $1.99 per Mcf in the second quarter of 1997. Crude oil, condensate and natural gas liquids production decreased to 15,357 barrels in the second quarter of 1998 from 45,707 barrels in the second quarter of 1997. The average price received for crude oil, condensate and natural gas liquids was $12.84 per barrel in the second quarter of 1998, compared to $14.91 per barrel in the second quarter of 1997. The decrease in natural gas and crude oil, condensate and natural gas liquids production for both the six months and the quarter ended June 30, 1998 when compared to the comparable periods of 1997 are primarily attributable to the cessation of production on the A-6 ST and A-21 wells on South Marsh Island blocks 155 and 156 during late 1997 and natural production declines on the A-20, A-22 and A-14 ST wells. For the six months ended June 30, 1998, natural gas production volumes decreased to 805,665 Mcf from 2,692,894 Mcf for the six months ended June 30, 1997. Crude oil, condensate and natural gas liquids production volumes decreased to 24,440 barrels in the first six months of 1998 as compared to 106,404 barrels in the first six months of 1997. The decrease in natural gas production and crude oil, condensate and natural gas liquids production was primarily due to cessation of production on the 5 S#5 West Delta Block 61/62 and the A-6 ST well on South Marsh Island block 155. OPERATIONAL REVIEW PNR has advised the Trust that during the second quarter of 1998 its offshore gas production was marketed under short term contracts at spot market prices to multiple purchasers, including Columbia Energy Services and Enron Gas Marketing, and that it expects to continue to market its production under short term contracts for the foreseeable future. Spot market prices for natural gas in the second quarter of 1998 were higher than spot market prices in the second quarter of 1997. The amount of cash distributed by the Trust is dependent on, among other things, the sales prices and quantities of gas, crude oil, condensate and natural gas liquids produced from the Royalty Properties and the quantities sold. Substantial uncertainties exist with regard to future gas and oil prices, which are subject to fluctuations due to the regional supply and demand for natural gas and oil, production levels and other activities of OPEC and other oil and gas producers, weather, storage levels, industrial growth, conservation measures, competition and other variables. The Brazos A-39 block experienced a decrease in natural gas production in the second quarter of 1998 as compared to the second quarter of 1997, primarily due to natural production decline. The Brazos A-7 block also experienced a decrease in natural gas production in the second quarter of 1998 compared to the second quarter of 1997, primarily due to natural production decline. PNR farmed out a portion of the Brazos A-7 block to another operator and participated at a 10% working interest in the completion of an exploratory gas well that was drilled in the second quarter of 1997. The No. 5 well encountered gas pay and was suspended pending completion operations. Production facilities were installed, and the No. 5 well commenced production late in the second quarter at a rate of approximately 10 MMcf per day. The combined completion and facility costs are expected to total $6.6 million ($594,000 net to the Trust). The South Marsh Island 155 and 156 blocks experienced a decrease in production in the second quarter of 1998 as compared to the second quarter 1997, primarily due to natural production decline, and the cessation of production in the A6 ST. Production for the block is currently 2.2 MMcf per day and 105 barrels of condensate per day as of August 1998. PNR purchased 3D seismic data for the South Marsh Island 156 block at a cost of $300,000 ($189,000 net to the Trust). The data has been evaluated and PNR has no current plans for additional drilling. The West Delta 61 and 62 blocks experienced a decrease in production in the second quarter of 1998 as compared to the second quarter of 1997, primarily due to the cessation of production of PNR operated 6 wells. These wells are currently uneconomic to produce. In portions of West Delta Block 62, the Trust is receiving royalty income from this property pursuant to a farmout agreement with another operator. The interest in the farmout wells which is attributable to the trust consists of a 7.5% overriding royalty interest. In West Delta Block 61, PNR farmed out portions of the block to another operator, retaining a 10% (9% net to the Trust) overriding royalty interest. A new well was drilled in the second quarter which encountered 320 net feet of pay in 8 Miocene sands below a true vertical depth of 7,500 feet. Matagorda Island 624 production decreased in the second quarter of 1998 as compared to the second quarter of 1997, primarily due to natural production decline. Gross production for the block is currently 2.6 MMcf per day and 38 barrels of condensate per day as of August 1998. TERMINATION OF THE TRUST The terms of the Mesa Offshore Trust Indenture provide that the Trust will terminate upon the first to occur of the following events: (1) the total amount of cash received per year by the Trust for each of three successive years commencing after December 31, 1987 is less than 10 times one-third of the total amount payable to the Trustee as compensation for such three year period or (2) a vote by the unitholders in favor of termination. Because the Trust will terminate in the event the total amount of cash received per year by the Trust falls below certain levels, it would be possible for the Trust to terminate even though some of the Royalty Properties continued to have remaining productive lives. For information regarding the estimated remaining life of each of the Royalty Properties and the estimated future net revenues of the Trust based on information provided by PNR, see the Trust's 1997 Annual Report on Form 10-K. Upon termination of the Trust, the Trustee will sell for cash all the assets held in the Trust estate and make a final distribution to unitholders of any funds remaining after all Trust liabilities have been satisfied. The discussion set forth above is qualified in its entirety by reference to the Trust Indenture itself, which is available upon request from the Trustee. Amounts paid to the Trustee as compensation were $173,000, $123,000 and $149,000 for the years 1997, 1996, and 1995, respectively. The December 31, 1997, reserve report prepared for the Partnership (see the Trust's 1997 Annual Report on Form 10-K) indicates that 95% of future net revenues will be received by the Trust during the next four years. As such, it is possible, depending on the timing of future production, market conditions, the success of future drilling activities, if any , and other matters, that in 1998 the Trust may commence a period of three successive years in which annual net royalty income would be below the termination threshold prescribed in the Indenture, resulting in termination of the Trust pursuant to the terms discussed above. The terms of the First Amended and Restated Articles of General Partnership of the Partnership provide that the Partnership shall dissolve upon the occurrence of any of the following: (a) December 31, 2030; (b) the election of the Trustee to dissolve the Partnership; (c) the termination of the Trust; (d) the bankruptcy of the Managing General Partner; or (e) the dissolution of the Managing General Partner or its election to dissolve the Partnership; provided that the Managing General Partner shall not elect to dissolve the Partnership so long as the Trustee remains the only other partner of the Partnership. In the event of a dissolution of the Partnership and a subsequent winding up and termination thereof, the assets of the Partnership (i.e., the Royalty interest) could either (i) be distributed in kind ratably to the Managing General Partner and the Trustee or (ii) be sold and the proceeds thereof distributed ratably to the Managing General Partner and the Trustee. In the event of a sale of the Royalty and a distribution of the cash proceeds to the Trustee, the Trustee would make a final distribution to unitholders of such cash proceeds plus any other cash held by the Trust after the payment of or provision for all liabilities of the Trust, and the Trust would be terminated. 7 The following tables provide a summary of the calculations of the net proceeds attributable to the Partnership's royalty interest: SOUTH BRAZOS MARSH WEST A-7 AND ISLAND 155 DELTA 61 MATAGORDA A-39 AND 156 AND 62 ISLAND 624 TOTAL --------- ----------- ---------- ---------- ----------- THREE MONTHS ENDED JUNE 30, 1998: Ninety percent of gross proceeds....................... $ 255,981 $ 399,775 $ 105,088 $168,446 $ 929,290 Less ninety percent of -- Operating expenditures......... (67,478) (193,294) (178,471) (28,245) (467,488) Capital costs recovered........ -- -- -- (802) (802) Accrual for future abandonment costs and interest on cost carryforward................ (11,727) (1,500) (5,848) (925) (20,000) --------- ----------- ---------- ---------- ----------- Net proceeds (excess costs)...... $ 176,776 $ 204,981 $ (79,231) $138,474 $ 441,000 ========= =========== ========== ========== =========== Trust share of net proceeds (99.99%)....................... $ 440,956 =========== Production Volumes and Average Prices: Crude oil, condensate and natural gas liquids (Bbls)...................... 153 13,758 -- 1,446 15,357 ========= =========== ========== ========== =========== Average sales price per Bbl.... $ 12.11 $ 12.86 $ -- $ 12.77 $ 12.84 ========= =========== ========== ========== =========== Natural gas (Mcf).............. 117,251 98,517 43,814 72,009 331,591 ========= =========== ========== ========== =========== Average sales price per Mcf.... $ 2.17 $ 2.26 $ 2.40 $ 2.08 $ 2.21 ========= =========== ========== ========== =========== Producing wells.................. 3 3 3 1 10 THREE MONTHS ENDED JUNE 30, 1997: Ninety percent of gross proceeds....................... $ 357,122 $ 1,817,894 $ 296,225 $309,604 $ 2,780,845 Less ninety percent of -- Operating expenditures......... (91,808) (407,236) (216,251) (63,503) (778,798) Capital costs recovered........ -- (173,808) -- (4,564) (178,372) Accrual for future abandonment costs....................... (25,074) (1,599) (8,645) (1,593) (36,911) --------- ----------- ---------- ---------- ----------- Net proceeds..................... $ 240,240 $ 1,235,251 $ 71,329 $239,944 $ 1,786,764 ========= =========== ========== ========== =========== Trust share of net proceeds (99.99%)....................... $ 1,786,585 =========== Production Volumes and Average Prices: Crude oil, condensate and natural gas liquids (Bbls)...................... 274 40,527 1,051 3,855 45,707 ========= =========== ========== ========== =========== Average sales price per Bbl.... $ 17.85 $ 14.35 $ 17.24 $ 19.98 $ 14.91 ========= =========== ========== ========== =========== Natural gas (Mcf).............. 177,383 627,343 142,638 109,677 1,057,041 ========= =========== ========== ========== =========== Average sales price per Mcf.... $ 1.99 $ 1.97 $ 1.95 $ 2.12 $ 1.99 ========= =========== ========== ========== =========== Producing wells.................. 3 5 4 2 14 - ------------ o The amounts shown are for Mesa Offshore Royalty Partnership. o The amounts for the three months ended June 30, 1998 and 1997 represent actual production for the periods February 1998 through April 1998 and February 1997 through April 1997, respectively. o Capital costs recovered represents capital costs incurred during the current or prior periods to the extent that such costs have been recovered by PNR from current period Gross Proceeds. o Producing wells indicate the number of wells capable of production as of the end of the period. 8 SOUTH BRAZOS MARSH WEST MATAGORDA A-7 AND ISLAND 155 DELTA 61 ISLAND A-39 AND 156 AND 62 624 TOTAL --------- ---------- ---------- --------- ----------- SIX MONTHS ENDED JUNE 30, 1998: Ninety percent of gross proceeds....................... $ 557,803 $ 725,015 $ 455,209 $ 562,188 $ 2,300,215 Less ninety percent of -- Operating expenditures......... (157,378) (507,546) (356,010) (102,011) (1,122,945) Capital costs recovered........ -- -- -- (1,883) (1,883) Accrual for future abandonment costs....................... (23,454) (3,000) (11,696) (1,850) (40,000) --------- ---------- ---------- --------- ----------- Net proceeds (excess costs)...... $ 376,971 $ 214,469 $ 87,503 $ 456,444 $ 1,135,387 ========= ========== ========== ========= =========== Trust share of net proceeds (99.99%)....................... $ 1,135,274 =========== Production Volumes and Average Prices: Crude oil, condensate and natural gas liquids (Bbls)...................... 433 20,252 594 3,161 24,440 ========= ========== ========== ========= =========== Average sales price per Bbl.... $ 13.71 $ 14.17 $ 15.51 $ 14.80 $ 14.28 ========= ========== ========== ========= =========== Natural gas (Mcf).............. 233,776 182,941 172,719 216,229 805,665 ========= ========== ========== ========= =========== Average sales price per Mcf.... $ 2.36 $ 2.39 $ 2.58 $ 2.38 $ 2.42 ========= ========== ========== ========= =========== Producing wells.................. 3 3 3 1 10 SOUTH BRAZOS MARSH WEST MATAGORDA A-7 AND ISLAND 155 DELTA 61 ISLAND A-39 AND 156 AND 62 624 TOTAL --------- ---------- ----------- --------- ------------ SIX MONTHS ENDED JUNE 30, 1997: Ninety percent of gross proceeds....................... $1,042,580 $6,721,943 $ 982,972 $ 782,018 $ 9,529,513 Less ninety percent of -- Operating expenditures......... (208,538) (731,787) (411,572) (137,629) (1,489,526) Capital costs recovered........ -- (4,948,156) (33,897) (4,564) (4,986,617) Accrual for future abandonment costs.......................... (85,116) (18,738) (42,513) (8,573) (154,940) --------- ---------- ----------- --------- ------------ Net proceeds..................... $ 748,926 $1,023,262 $ 494,990 $ 631,252 $ 2,898,430 ========= ========== =========== ========= ============ Trust share of net proceeds (99.99%)....................... $ 2,898,140 ============ Production Volumes and Average Prices: Crude oil, condensate and natural gas liquids (Bbls)...................... 551 98,090 2,504 5,259 106,404 ========= ========== =========== ========= ============ Average sales price per Bbl.... $ 19.88 $ 17.92 $ 19.02 $ 20.82 $ 18.10 ========= ========== =========== ========= ============ Natural gas (Mcf).............. 383,203 1,735,686 338,177 235,828 2,692,894 ========= ========== =========== ========= ============ Average sales price per Mcf.... $ 2.69 $ 2.86 $ 2.77 $ 2.85 $ 2.82 ========= ========== =========== ========= ============ Producing wells.................. 3 5 4 2 14 - ------------ o The amounts shown are for Mesa Offshore Royalty Partnership. o The amounts for the six months ended June 30, 1998 and 1997 represent actual production for the periods November 1997 through April 1998, and November 1996 through April 1997 respectively. o Capital costs recovered represents capital costs incurred during the current or prior periods to the extent that such costs have been recovered by PNR from current period Gross Proceeds. o Producing wells indicate the number of wells capable of production as of the end of the period. 9 PART II ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K (A) EXHIBITS (Asterisk indicates exhibit previously filed with the Securities and Exchange Commission and incorporated herein by reference.) SEC FILE OR REGISTRATION EXHIBIT NUMBER NUMBER ------------ ------- 4(a) *Mesa Offshore Trust Indenture between Mesa Petroleum Co. and Texas Commerce Bank National Association, as Trustee, dated December 15, 1982.................................................................... 2-79673 10(gg) 4(b) *Overriding Royalty Conveyance between Mesa Petroleum Co. and Mesa Offshore Royalty Partnership, dated December 15, 1982................... 2-79673 10(hh) 4(c) *Partnership Agreement between Mesa Offshore Management Co. and Texas Commerce Bank National Association, as Trustee, dated December 15, 1982.................................................................... 2-79673 10(ii) 4(d) *Amendment to Partnership Agreement between Mesa Offshore Management Co., Texas Commerce Bank National Association, as Trustee, and Mesa Operating Limited Partnership, dated December 27, 1985 (Exhibit 4(d) to Form 10-K for year ended December 31, 1992 of Mesa Offshore Trust)................ 1-8432 4(d) 4(e) *Amendment to Partnership Agreement between Texas Commerce Bank National Association, as Trustee and Mesa Operating dated as of January 5, 1994 (Exhibit 4(e) to Form 10-K for year ended December 31, 1993 of Mesa Offshore Trust)......................................................... 1-8432 4(e) 27 Financial Data Schedule (B) REPORTS ON FORM 8-K None. 10 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. MESA OFFSHORE TRUST CHASE BANK OF TEXAS, By NATIONAL ASSOCIATION -------------------- TRUSTEE By /s/ PETE FOSTER -------------------- PETE FOSTER SENIOR VICE PRESIDENT & TRUST OFFICER Date: August 10, 1998 The Registrant, Mesa Offshore Trust, has no principal executive officer, principal financial officer, board of directors or persons performing similar functions. Accordingly, no additional signatures are available and none have been provided. 11