================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -------------------- FORM 10-K/A (Amendment No. 1) [x] Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996 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 NO. 0-21411 -------------------- COSTILLA ENERGY, INC. (Exact name of registrant as specified in its charter) -------------------- DELAWARE 75-2658940 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 400 WEST ILLINOIS, SUITE 1000 MIDLAND, TEXAS 79701 (Address of principal executive offices) (Zip code) (915) 683-3092 (Registrant's telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: None Securities registered pursuant to Section 12(g) of the Act: COMMON STOCK, $0.10 PAR VALUE 10 1/4% SENIOR NOTES DUE 2006 (Title of Class) (Title of Class) -------------------- 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 NO X* ------- ------- *The Registrant's Form 8-A was declared effective with the Securities and Exchange Commission on October 2, 1996. Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [ ] The aggregate market value of the Common Stock held by non-affiliates, based upon the last sale price as quoted on the Nasdaq Stock Market's National Market of $13.00 per share on March 21, 1997, was $79,887,340. Number of shares of Common Stock outstanding as of March 21, 1997 ... 10,476,500 DOCUMENTS INCORPORATED BY REFERENCE The information required by Part III of this Form 10-K will be included in the registrant's definitive Proxy Statement, which will be filed with the Commission not later than April 30, 1997 and which is incorporated herein by reference. ================================================================================ COSTILLA ENERGY, INC. TABLE OF CONTENTS PAGE ---- PART II. Item 8. Financial Statements and Supplementary Data. 3 PART IV Item 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K. 4 SIGNATURES 6 2 PART I SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS Certain statements in this Form 10-K under "Item 1. Business," "Item 3. Legal Proceedings," "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," and elsewhere in this Form 10-K constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 (the "Reform Act"). Such forward-looking statements involve known and unknown risks, uncertainties, and other factors which may cause the actual results, performance, or achievements of Costilla Energy, Inc. ("Costilla" or the "Company") to be materially different from any future results, performance, or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the following: the volatility of oil and gas prices, the Company's drilling results and ability to replace oil and gas reserves, the availability of capital resources, the reliance upon estimates of proved reserves, operating hazards and uninsured risks, competition, government regulation, and the ability of the Company to implement its business strategy, and other factors referenced in the Company's recent prospectus for its initial public offering of common stock. ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA. For the financial statements and supplementary data required by this Item 8, see the Index to Consolidated Financial Statements on page F-1 in this Form 10-K/A. 3 PART IV ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K. FINANCIAL STATEMENTS For a list of the consolidated financial statements filed as part of this Form 10-K, see the Index to Consolidated Financial Statements on page F-1. REPORTS ON FORM 8-K No reports on Form 8-K were filed during the quarter ended December 31, 1996. EXHIBITS Exhibit Number Description of Exhibit - ------- ---------------------- *3.1 Certificate of Incorporation of the Company *3.2 Bylaws of the Company *4.1 Form of Notes or Global Certificate (included as Exhibit A to the Indenture) *4.2 Indenture dated as of October 1, 1996 by and between State Street Bank and Trust Company, as Trustee, and the Company, as Issuer **4.3 Form of Stock Certificate ***10.1 Credit Agreement dated October 10, 1996 between NationsBank of Texas, N.A., as agent, the Lenders named therein and the Company *10.2 Lease Agreement dated January 12, 1996 between Independence Plaza, Ltd. and Costilla Energy, L.L.C. *10.3 Concession Agreement dated July 6, 1995 between the Government of the Republic of Moldova and Resource Development Company Ltd., L.L.C. (DE) *10.4 Consolidation Agreement dated October 8, 1996 *10.5 1996 Stock Option Plan *10.6 Outside Directors Stock Option Plan *10.7 Employment Agreement between the Company and Bobby W. Page effective June 30, 1996 *10.8 Employment Agreement between the Company and Cadell S. Liedtke effective October 8, 1996 *10.9 Employment Agreement between the Company and Michael J. Grella effective October 8, 1996 *10.10 Employment Agreement between the Company and Henry G. Musselman effective October 8, 1996 *10.11 Purchase and Sale Agreement dated April 3, 1995 by and between Parker & Parsley Development L.P., Parker & Parsley Producing L.P. and Parker & Parsley Gas Processing Co., as Seller, and Costilla Petroleum Corporation and Costilla Energy, L.L.C., as Purchaser *10.12 Purchase and Sale Agreement dated March 8, 1996 by and between Parker & Parsley Development L.P., Parker & Parsley Producing L.P. and Parker & Parsley Gas Processing Co., as Seller, and Costilla Petroleum Corporation and Costilla Energy, L.L.C., as Purchaser *10.13 Bonus Incentive Plan 4 ***10.14 Letter Agreement dated December 18, 1996 by and between Statewide Minerals, Inc., as Seller, Boldrick Partners, as Buyer ***10.15 Stock Purchase Agreement dated December 31, 1996 by and between ERI Investments, Inc. and the Company ***12.1 Computation of Ratio of Adjusted EBITDA to Interest Expense **16.1 Letter Regarding Change of Accountants ***21.1 Subsidiaries of the Registrant ***23.1 Consent of KPMG Peat Marwick LLP ***23.2 Consent of Williamson Petroleum Consultants, Inc. ***23.3 Consent of Elms, Faris & Co., P.C. ***24.1 Power of Attorney ***24.2 Certified copy of resolution of Board of Directors of Costilla Energy, Inc. authorizing signature by Power of Attorney ****27.1 Financial Data Schedule * Incorporated by reference to Registration Statement on Form S-1, File No. 333-08909 ** Incorporated by reference to Registration Statement on Form S-1, File No. 333-08913. *** Previously filed **** Filed herewith FINANCIAL STATEMENT SCHEDULES No Financial Statement Schedules are required with this report. For a list of the consolidated financial statements filed as a part of this report, see the Index to Consolidated Financial Statements on page F-1. REPORTS ON FORM 8-K The Company did not file a report on Form 8-K during the last quarter of the period covered by this report. 5 S I G N A T U R E S Pursuant to the requirements of Section 13 or 15(d) 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. COSTILLA ENERGY, INC. Date: November 10, 1997 By: */s/ MICHAEL J. GRELLA -------------------------------- Michael J. Grella President and Chief Executive Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated. Date: November 10, 1997 */s/ CADELL S. LIEDTKE -------------------------------- Cadell S. Liedtke Chairman of the Board Date: November 10, 1997 */s/ MICHAEL J. GRELLA -------------------------------- Michael J. Grella President and Chief Executive Officer and Director Date: November 10, 1997 */s/ HENRY G. MUSSELMAN -------------------------------- Henry G. Musselman Executive Vice President, Chief Operating Officer and Director Date: November 10, 1997 */s/ W. D. KENNEDY -------------------------------- W. D. Kennedy Director Date: November 10, 1997 */s/ JERRY J. LANGDON -------------------------------- Jerry J. Langdon Director Date: November 10, 1997 /s/ BOBBY W. PAGE -------------------------------- Bobby W. Page Senior Vice President and Chief Financial Officer (principal accounting officer) Date: November 10, 1997 *By: /s/ BOBBY W. PAGE -------------------------------- Bobby W. Page Agent and Attorney in fact 6 INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Financial Statements of Costilla Energy, Inc.: Independent Auditors' Reports . . . . . . . . . . . . . . . . . . . . . . . . F - 2 Consolidated Balance Sheets as of December 31, 1996 and 1995. . . . . . . . . F - 4 Consolidated Statements of Operations for the years ended December31, 1996, 1995 and 1994. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F - 5 Consolidated Statements of Stockholders' Equity for the years ended December 31, 1996, 1995 and 1994. . . . . . . . . . . . . . . . . . . . F - 6 Consolidated Statements of Cash Flows for the years ended December 31, 1996, 1995 and 1994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F - 7 Notes to Consolidated Financial Statements. . . . . . . . . . . . . . . . . . F - 8 F-1 INDEPENDENT AUDITORS' REPORT The Board of Directors and Stockholders Costilla Energy, Inc.: We have audited the accompanying consolidated balance sheets of Costilla Energy, Inc. and subsidiaries as of December 31, 1996 and 1995, and the related consolidated statements of operations, stockholders' equity, and cash flows for the years then ended. These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Costilla Energy, Inc. and subsidiaries as of December 31, 1996 and 1995, and the results of their operations and their cash flows for the years then ended, in conformity with generally accepted accounting principles. /s/ KPMG PEAT MARWICK LLP --------------------------------- KPMG PEAT MARWICK LLP Midland, Texas March 10, 1997 F-2 INDEPENDENT AUDITORS' REPORT The Board of Directors and Stockholders Costilla Energy, Inc.: We have audited the accompanying consolidated statement of operations, stockholders' equity, and cash flows of the predecessor entities of Costilla Energy, Inc. and subsidiaries, as detailed in Note 1 to the consolidated financial statements, for the year ended December 31, 1994. These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audit. We conducted our audit in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion. In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the results of operations and the cash flows of Costilla Energy, Inc. and subsidiaries for the year ended December 31, 1994, in conformity with generally accepted accounting principles. /s/ ELMS, FARIS & CO., P. C. ------------------------------------ ELMS, FARIS & CO., P. C. Midland, Texas March 31, 1995 F-3 COSTILLA ENERGY, INC. CONSOLIDATED BALANCE SHEETS (IN THOUSANDS) ASSETS DECEMBER 31, --------------------- 1996 1995 --------- -------- CURRENT ASSETS: Cash and cash equivalents $ 12,618 $ 2,866 Accounts receivable: Trade, net 6,675 3,154 Affiliates 332 507 Oil and gas sales 9,031 3,915 Prepaid and other current assets 1,753 439 --------- -------- Total current assets 30,409 10,881 --------- -------- PROPERTY, PLANT AND EQUIPMENT, AT COST: Oil and gas properties, using the successful efforts method of accounting: Proved properties 140,477 79,897 Unproved properties 4,482 2,903 Accumulated depletion, depreciation and amortization (20,435) (9,413) --------- -------- 124,524 73,387 Other property and equipment, net 2,420 679 --------- -------- Total property, plant and equipment 126,944 74,066 --------- -------- OTHER ASSETS: Deferred charges (Note 2) 4,503 1,736 Note receivable - other 250 - Note receivable - affiliate 684 684 --------- -------- Total other assets 5,437 2,420 --------- -------- $ 162,790 $ 87,367 --------- -------- --------- -------- LIABILITIES AND STOCKHOLDERS' EQUITY CURRENT LIABILITIES: Current maturities of long-term debt $ 98 $ - Trade accounts payable 12,718 5,467 Undistributed revenue 3,517 1,227 Other current liabilities 3,756 1,533 --------- -------- Total current liabilities 20,089 8,227 --------- -------- LONG-TERM DEBT, LESS CURRENT MATURITIES (NOTE 7) 100,262 71,494 --------- -------- DEFERRED REVENUE - 3,319 --------- -------- OTHER NONCURRENT LIABILITIES 1,870 196 --------- -------- REDEEMABLE PREDECESSOR CAPITAL - 11,576 --------- -------- STOCKHOLDERS' EQUITY (DEFICIT): Predecessor capital - (7,445) Preferred stock, $.10 par value (3,000,000 shares authorized; no shares outstanding - - Common stock, $.10 par value (20,000,000 shares authorized; 10,475,000 shares outstanding at December 31, 1996) 1,047 - Additional paid-in capital 41,081 - Retained earnings (deficit) (1,559) --------- -------- Total stockholders' equity (deficit) 40,569 (7,445) --------- -------- COMMITMENTS AND CONTINGENCIES (NOTE 9) - - --------- -------- $ 162,790 $ 87,367 --------- -------- --------- -------- See accompanying notes to consolidated financial statements. F-4 COSTILLA ENERGY, INC. CONSOLIDATED STATEMENTS OF OPERATIONS (IN THOUSANDS, EXCEPT PER SHARE DATA) YEARS ENDED DECEMBER 31, --------------------------------- 1996 1995 1994 -------- -------- -------- REVENUES: Oil and gas sales $ 53,919 $ 21,693 $ 7,637 Interest and other 40 123 87 Gain on sale of assets 1,067 - 112 -------- -------- -------- 55,026 21,816 7,836 -------- -------- -------- EXPENSES: Oil and gas production 21,325 10,024 2,349 Oil and gas production - affiliates 449 331 2 General and administrative 4,682 2,910 634 General and administrative - affiliates 556 661 550 Compensation related to option settlement - 656 - Exploration and abandonments 2,550 1,652 793 Depreciation, depletion and amortization 12,430 5,958 1,847 Interest 11,281 4,591 1,458 -------- -------- -------- 53,273 26,783 7,633 -------- -------- -------- Income (loss) before federal income taxes and extraordinary item 1,753 (4,967) 203 PROVISION FOR FEDERAL INCOME TAXES Current 176 3 8 Deferred 1,042 - 32 -------- -------- -------- Income (loss) before extraordinary item 535 (4,970) 163 Extraordinary loss resulting from early extinguishment of debt, net of the related deferred tax benefit of $1,042 (Notes 5 and 7) (4,975) - - -------- -------- -------- NET INCOME (LOSS) $ (4,440) $ (4,970) $ 163 -------- -------- -------- -------- -------- -------- PREFERRED RETURN, ACCRETION AND REDEMPTION PREMIUM ON REDEEMABLE MEMBERS' CAPITAL $ (3,930) $ (2,842) $ - -------- -------- -------- -------- -------- -------- INCOME (LOSS) BEFORE EXTRAORDINARY ITEM APPLICABLE TO COMMON EQUITY $ (3,395) $ (7,812) $ 163 -------- -------- -------- -------- -------- -------- NET INCOME (LOSS) APPLICABLE TO COMMON EQUITY $ (8,370) $ (7,812) $ 163 -------- -------- -------- -------- -------- -------- INCOME (LOSS) PER SHARE: Income (loss) before extraordinary item $ (0.52) $ (1.50) $ 0.03 Extraordinary loss resulting from early extinguishment of debt, net of deferred tax benefit (0.77) - - -------- -------- -------- Net income (loss) $ (1.29) $ (1.50) $ 0.03 -------- -------- -------- -------- -------- -------- WEIGHTED AVERAGE SHARES OUTSTANDING 6,473 5,200 5,200 -------- -------- -------- -------- -------- -------- See accompanying notes to consolidated financial statements. F-5 COSTILLA ENERGY, INC. CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) (IN THOUSANDS) TOTAL STOCKHOLDERS' ADDITIONAL RETAINED EQUITY AND PREDECESSOR COMMON PAID-IN EARNINGS PREDECESSOR CAPITAL STOCK CAPITAL (DEFICIT) CAPITAL ----------- ------ ---------- -------- ------------- BALANCE AT DECEMBER 31, 1993 (PREDECESSOR) $ 51 $ - $ - $ - $ 51 Net income 163 - - - 163 Withdrawals (961) - - - (961) ------- ------ -------- ------- ------- BALANCE AT DECEMBER 31, 1994 (PREDECESSOR) (747) - - - (747) Issuance of predecessor interest 1,266 - - - 1,266 Issuance costs (753) - - - (753) Net loss (4,970) - - - (4,970) Withdrawals (55) - - - (55) Imputed capital contribution on settlement of option 656 - - - 656 Preferred return and accretion of redeemable predecessor capital (2,842) - - - (2,842) ------- ------ -------- ------- ------- BALANCE AT DECEMBER 31, 1995 (PREDECESSOR) (7,445) - - - (7,445) Net loss (2,881) - - (1,559) (4,440) Preferred return and accretion of redeemable predecessor capital (3,930) - - - (3,930) Common stock issued, net - 527 60,052 - 60,579 Distributions to members (4,218) 4,218 - - Transfer of predecessor capital and issuance of common stock pursuant to the Offerings 18,474 520 (23,189) - (4,195) ------- ------ -------- ------- ------- BALANCE AT DECEMBER 31, 1996 $ - $1,047 $ 41,081 $(1,559) $40,569 ------- ------ -------- ------- ------- ------- ------ -------- ------- ------- See accompanying notes to consolidated financial statements. F-6 COSTILLA ENERGY, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (IN THOUSANDS) YEARS ENDED DECEMBER 31, --------------------------------- 1996 1995 1994 --------- -------- -------- CASH FLOWS FROM OPERATING ACTIVITIES: NET INCOME (LOSS) $ (4,440) $ (4,970) $ 163 ADJUSTMENTS TO RECONCILE NET INCOME (LOSS) TO NET CASH PROVIDED BY OPERATING ACTIVITIES: Depreciation, depletion and amortization 12,430 5,958 1,847 Exploration and abandonments 491 - - Amortization of deferred charges 1,131 137 - Other noncash 103 (75) 35 Compensation related to option settlement - 656 - Gain on sale of oil and gas properties (1,067) - (112) Extraordinary loss resulting from early extinguishment of debt 6,017 - - --------- -------- -------- 14,665 1,706 1,933 Changes in operating assets and liabilities: Increase in accounts receivable (8,462) (4,818) (1,535) Decrease (increase) in other assets (1,076) (216) 301 Increase in accounts payable 6,067 3,745 723 Increase in other liabilities 4,475 2,655 102 Increase (decrease) in deferred revenue (3,319) 3,294 3 --------- -------- -------- Net cash provided by operating activities 12,350 6,366 1,527 --------- -------- -------- CASH FLOWS FROM INVESTING ACTIVITIES: Additions to oil and gas properties (67,010) (61,500) (11,819) Proceeds from sale of oil and gas properties 6,388 - 112 Additions to other property and equipment (3,007) (720) (49) Advances on notes receivable - other (500) - - Advances on affiliate notes receivable - (247) (390) --------- -------- -------- Net cash used in investing activities (64,129) (62,467) (12,146) --------- -------- -------- CASH FLOWS FROM FINANCING ACTIVITIES: Borrowings under long-term debt 228,707 62,704 11,579 Payments of long-term debt (199,840) (11,232) - Proceeds from issuance of common stock, net 60,579 - - Proceeds from redeemable predecessor capital - 10,000 - Deferred loan and financing costs (8,191) (2,587) - Redemption of member's interest (15,506) - - Distributions to members and withdrawals (4,218) (55) (961) --------- -------- -------- Net cash provided by financing activities 61,531 58,830 10,618 --------- -------- -------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 9,752 2,729 (1) CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 2,866 137 138 --------- -------- -------- CASH AND CASH EQUIVALENTS, END OF PERIOD $ 12,618 $ 2,866 $ 137 --------- -------- -------- --------- -------- -------- See accompanying notes to consolidated financial statements. F-7 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (1) ORGANIZATION AND NATURE OF OPERATIONS Costilla was incorporated in Delaware in June 1996 to consolidate and continue the activities previously conducted by Costilla Energy, L.L.C., a Texas limited liability company (the "LLC"), and its wholly owned subsidiaries, to acquire the assets of CSL Management Corporation ("CSL") (which owns certain office equipment used by the Company), and to acquire the stock of Valley Gathering Company ("Valley"). Costilla was formed for the purpose of conducting a $60 million initial public offering of common stock and a $100 million senior notes offering (the "Offerings"), which Offerings were completed in early October 1996. At December 31, 1994, the financial statements of the LLC and its affiliates were combined. The combining companies were owned by three individuals prior to the formation of the LLC. Such individuals owned exactly the same proportionate interest in each of the combining companies prior to their combination into the LLC on February 14, 1995. Each individual held exactly the same proportionate interest in the combining companies as was their proportionate interest in the LLC after its formation. Management believes, based on the exact same proportionate interests being held in the combining companies and the LLC before and after the date of its formation, that the combination lacks substance and is not the purchase of a minority interest. The LLC was formed on February 14, 1995 as the successor to CSL Partners, a Texas general partnership, which was organized on January 11, 1989. Subsequent to the formation of the LLC, NationsBank Capital Corporation ("NBCC") acquired a 30% interest in the LLC as described in Note 12. Contemporaneously with the closings of the Offerings: (1) the redeemable membership interests of NBCC in the LLC were redeemed for $15.5 million; (2) the LLC was merged into Costilla (the "Merger") and an aggregate of 5,200,000 shares of Common Stock were issued to the members of the LLC; (3) Costilla acquired all of the issued and outstanding stock of Valley and the assets of CSL for $0.7 million; and (4) $4.2 million in distributions were made to the members of the LLC, $3.4 million of which was provided to former members for certain income tax effects of the Merger. The LLC was an unincorporated association of several individuals and a corporation and ceased to exist on the date of the Offerings. The Company is an oil and gas exploration and production concern with properties located principally in West Texas, South Texas, and the Rocky Mountain regions of the United States. (2) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES PRINCIPLES OF CONSOLIDATION As of December 31, 1996, the consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. The Company proportionately consolidates less than 100%-owned oil and gas partnerships and joint ventures in accordance with industry practice. All significant accounts and transactions between the Company and its subsidiaries have been eliminated. At December 31, 1996 Costilla had three wholly owned subsidiaries: (i) Costilla Petroleum Corporation, a Texas corporation ("CPC"), which operated properties owned by Costilla and owned minor interests in the same properties, (ii) Statewide Minerals, Inc., a Texas corporation ("Statewide"), which had engaged in the purchase of small royalty and mineral interests; and (iii) Valley, which owns several small gas gathering systems, a small gas processing plant, certain salt water disposal systems and gas compressors. Costilla and CPC were the sole members of two Texas limited liability companies through which the Company's Moldovan operations are conducted. F-8 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS USE OF ESTIMATES Preparation of the accompanying consolidated financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. CASH AND CASH EQUIVALENTS For purposes of the statements of cash flows, cash and cash equivalents include cash on hand and depository accounts held by banks. CONCENTRATIONS OF CREDIT RISK Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of unsecured accounts receivable from unaffiliated working interest owners and crude oil and natural gas purchasers. During the year ended December 31, 1996, the Company had sales to one customer which accounted for 11.2% of total revenues. During the year ended December 31, 1995, the Company had sales to one customer which accounted for 17.7% of total revenues. TRADE RECEIVABLES Trade receivables generally consist of amounts due from outside working interest owners for their proportionate share of drilling and operating costs incurred by the Company, as operator of the related properties. HEDGING AND DERIVATIVE FINANCIAL INSTRUMENTS The financial instruments that the Company accounts for as hedging contracts must meet the following criteria: the underlying asset or liability must expose the Company to price or interest rate risk that is not offset in another asset or liability, the hedging contract must reduce that price or interest rate risk, and the instrument must be designated as a hedge at the inception of the contract and throughout the contract period. In order to qualify as a hedge, there must be clear correlation between changes in the fair value of the financial instrument and the fair value of the underlying asset or liability such that changes in the market value of the financial instrument will be offset by the effect of price or interest rate changes on the exposed items. Premiums paid for commodity option contracts and interest rate swap agreements which qualify as hedges are amortized to oil and gas sales and interest expense, respectively, over the terms of the agreements. Unamortized premiums are included in other assets in the consolidated balance sheet. Amounts receivable under the commodity option contracts and interest rate swap agreements are accrued as an increase in oil and gas sales and a reduction of interest expense, respectively, for the applicable periods. When these derivative financial instruments cease to qualify as hedges, these instruments are classified as investments held for trading purposes. Investments held for trading purposes are marked to market at the end of each reporting period and the net balance change is recorded as other income in the consolidated statement of operations for the applicable period. OIL AND GAS PROPERTIES The Company uses the successful efforts method of accounting for oil and gas producing activities. Costs to acquire mineral interests in oil and gas properties, to drill and equip exploratory wells that find proved reserves, and to drill and equip development wells are capitalized. Costs to drill exploratory wells that do not find proved reserves, geological and geophysical costs, and costs of carrying and retaining unproved properties are expensed. F-9 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Unproved oil and gas properties that are individually significant are periodically assessed for impairment of value, and a loss is recognized at the time of impairment by providing an impairment allowance. Other unproved properties are amortized based on the Company's experience of successful drilling and average holding period. Capitalized costs of producing oil and gas properties, after considering estimated dismantlement and abandonment costs and estimated salvage values, are depreciated and depleted by the unit-of-production method. Support equipment and other property and equipment are depreciated over their estimated useful lives of the assets, which range from 5 to 7 years. Prior to the adoption of FAS 121 on January 1, 1995, the Company's aggregate oil and gas properties were carried at cost, not in excess of total estimated undiscounted future net revenues, on a worldwide basis. On sale or retirement of a complete unit of a proved property, the cost and related accumulated depreciation, depletion, and amortization are eliminated from the property accounts, and the resultant gain or loss is recognized. On retirement or sale of a partial unit of proved property, the cost is charged to accumulated depreciation, depletion, and amortization with a resulting gain or loss recognized in income. On sale of an entire interest in an unproved property for cash or cash equivalent, gain or loss on the sale is recognized, taking into consideration the amount of any recorded impairment if the property had been assessed individually. If a partial interest in an unproved property is sold, the amount received is treated as a reduction of the cost of the interest retained. IMPAIRMENT OF LONG-LIVED ASSETS As of January 1, 1995, the Company adopted the provisions of Statement of Financial Accounting Standards No. 121 - ACCOUNTING FOR THE IMPAIRMENT OF LONG-LIVED ASSETS AND FOR LONG-LIVED ASSETS TO BE DISPOSED OF ("FAS 121"). Consequently, the Company reviews its long-lived assets to be held and used, including oil and gas properties accounted for under the successful efforts method of accounting, whenever events or circumstances indicate that the carrying value of those assets may not be recoverable. An impairment loss is indicated if the sum of the expected future cash flows, on a depletable unit basis, is less than the carrying amount of such assets. In this circumstance, the Company recognizes an impairment loss for the amount by which the carrying amount of the asset exceeds the fair value of the asset. DEFERRED CHARGES The Company capitalized certain costs incurred in connection with the issuance of $100 million of senior notes and with obtaining the 1996 Credit Facility (see Note 7 for definitions and descriptions of each). These costs are being amortized over the lives of the related instruments. DEFERRED REVENUE In November 1995, the Company entered into gas sales agreements whereby it committed to delivery of a total of 2,379,000 MMbtu, from December 1, 1995 through December 31, 1996, for a total fixed price of $3,429,610. Income from such agreements is generally recognized in the period of delivery. REVENUE RECOGNITION The Company uses the sales method of accounting for crude oil revenues. Under this method, revenues are recognized based on actual volumes of oil sold to purchasers. The Company uses the entitlements method of accounting for natural gas revenues. Under this method, revenues are recognized based on actual production of natural gas. Natural gas revenues would not have been significantly altered in any period had the sales method of recognizing natural gas revenues been utilized. F-10 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS STOCK-BASED COMPENSATION The Company accounts for employee stock-based compensation using the intrinsic value method prescribed by Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees" ("APB 25"). Accordingly, the Company has only adopted the disclosure provisions of Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation" ("SFAS 123"). See Note 12 for the pro forma disclosures of compensation expense determined under the fair-value provisions of SFAS 123. INCOME TAXES The Company accounts for income taxes in accordance with the provisions of Statement of Financial Accounting Standards No. 109, "Accounting for Income Taxes" ("SFAS 109"). Under the asset and liability method of SFAS 109, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Under SFAS 109, the effect on deferred tax assets and liabilities of a change in tax rate is recognized in income in the period that includes the enactment date. EARNINGS PER SHARE Primary net income (loss) per share is computed based on the weighted average number of shares of common stock and common stock equivalents outstanding during the period. Primary net income (loss) per share is reduced by the preferred return, accretion and redemption premium on redeemable members' capital for the years ended December 31, 1996 and 1995. Common stock equivalent shares arising from stock options are computed using the treasury stock method. There were no potentially dilutive securities, other than common stock equivalents. Consequently, primary and fully diluted earnings per share do not differ. For the periods prior to the Offerings, the weighted average shares outstanding attributable to predecessor capital are the 5,200,000 shares issued to the predecessor members upon conversion of the LLC. ENVIRONMENTAL The Company is subject to extensive Federal, state and local environmental laws and regulations. These laws, which are constantly changing, regulate the discharge of materials into the environment and may require the Company to remove or mitigate the environmental effects of the disposal or release of petroleum or chemical substances at various sites. Environmental expenditures are expensed or capitalized depending on their future economic benefit. Expenditures that relate to an existing condition caused by past operations and that have no future economic benefits are expensed. Liabilities for expenditures of a noncapital nature are recorded when environmental assessment and/or remediation is probable, and the costs can be reasonably estimated. RECLASSIFICATIONS Certain reclassifications have been made to the 1995 and 1994 financial statements to conform to the 1996 presentation. (3) ACQUISITION OF OIL AND GAS PROPERTIES On June 14, 1996, the Company consummated the purchase from Parker and Parsley Petroleum Company of certain oil and gas properties for an estimated adjusted purchase price of approximately $38.7 million (the "1996 Acquisition"). The properties are located primarily in south and west Texas. The transaction was accounted for using the purchase method. The results of operations of the acquired properties are included in the Consolidated Statements of Operations as of the acquisition closing date, June 14, 1996. The Company sold for approximately $3.3 million its wholly-owned subsidiary, Costilla Pipeline Corporation, which owned the Three Rivers Pipeline F-11 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS purchased in the 1996 Acquisition. Certain other acquired properties, which were located outside the Company's areas of strategic focus, were sold in 1996. No gain or loss was recorded on these sales. In June 1995 the Company acquired a group of oil and gas properties from Parker and Parsley Petroleum Company for approximately $46.6 million (the "1995 Acquisition"). The properties are located in the Permian Basin, Gulf Coast and Rocky Mountain regions. The transaction was accounted for using the purchase method. The results of operations of the acquired properties are included in the Consolidated Statements of Operations as of the acquisition date of June 12, 1995. Certain other acquired properties, which were located outside the Company's areas of strategic focus, were sold in 1995. No gain or loss was recorded on these sales. PRO FORMA RESULTS OF OPERATIONS (UNAUDITED) The following table reflects the pro forma results of operations as though the 1995 Acquisition and 1996 Acquisition, net of the related properties sold, had occurred on January 1, 1995. The pro forma amounts are not necessarily indicative of the results that may be reported in the future. YEARS ENDED DECEMBER 31, 1996 1995 ------- -------- (IN THOUSANDS) Revenues. . . . . . . . . . . . . . . . . . . . . . $64,251 $ 51,896 Net loss before extraordinary item. . . . . . . . . (4,830) (14,227) Net loss per share before extraordinary item. . . . (0.75) (2.74) (4) IMPAIRMENT OF LONG-LIVED ASSETS The Company adopted FAS 121 effective as of January 1, 1995. FAS 121 requires that long-lived assets held and used by an entity, including oil and gas properties accounted for under the successful efforts method of accounting, be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Long-lived assets to be disposed of are to be accounted for at the lower of carrying amount or fair value less cost to sell when management has committed to a plan to dispose of the assets. All companies, including successful efforts oil and gas companies, are required to adopt FAS 121 for fiscal years beginning after December 15, 1995. In order to determine whether an impairment had occurred, the Company estimated the expected future cash flows of its oil and gas properties on a depletable unit basis and compared such future cash flows to the carrying amount of the related oil and gas properties to determine if the carrying amount was recoverable. Based on this process, no writedown in the carrying amount of the Company's proved properties was necessary at December 31, 1996 or 1995. (5) DERIVATIVE FINANCIAL INSTRUMENTS The Company utilizes derivative financial instruments to manage well-defined interest rate and commodity price risks. The Company is exposed to credit losses in the event of nonperformance by the counterparties to its interest rate swap agreements and its commodity hedges. The Company anticipates, however, that such counterparties will be able to fully satisfy their obligations under the contracts. The Company does not obtain collateral or other security to support financial instruments subject to credit risk but monitors the credit standing of the counterparties. F-12 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS COMMODITY HEDGES. The Company utilizes option contracts to hedge the effect of price changes on future oil and gas production. If market prices of oil and gas exceed the strike price of put options, the options will expire unexercised, therefore reducing the effective price received for oil and gas sales by the cost of the related option. The following table sets forth the future volumes hedged by year and the weighted-average strike price of the option contracts at December 31, 1996: OIL GAS VOLUME VOLUME STRIKE PRICE (BBLS) (MMBTU) PER BBL/MMBTU --------- --------- ------------------ Oil: 1997 . . . . . . . . . . . . . . . . .1,912,500 - $16.52 - $20.65(a) Gas: 1997 . . . . . . . . . . . . . . . . . - 1,500,000 $1.65(b) - ----------------------- (a) Represents the weighted-average price of a purchased put option contract and of a collar established with the purchase of a put option contract and the sale of a call option contract. (b) Represents the strike price on a purchased put option contract. INTEREST RATE SWAP AGREEMENTS. Prior to the Offerings, the Company utilized two interest rate swap agreements to reduce the potential impact of increases in interest rates on floating-rate long-term debt. Concurrent with the issuance of the $100 million of 10.25% fixed-rate senior notes in early October 1996, the two interest rate swap agreements ceased to be hedges. These interest rate swap agreements were marked-to-market and the related liability recorded. The liability for the two interest rate swap agreements was $1,712,000 at December 31, 1996. The average balance of this liability during the quarter ended December 31, 1996 was approximately $1,700,000. During the quarter ended December 31, 1996, the Company recorded investment losses of $207,300 on the interest rate swap agreements. The following table sets forth the terms, fixed rates, and notional amounts of the interest rate swap agreements in place as of December 31, 1996: NOTIONAL PRINCIPAL FIXED TERM AMOUNT INTEREST RATE - -------------------------------- ----------- ------------- Jan. 25, 1996 to Jan. 25, 1999 $24 million 7.50% May 24, 1995 to May 27, 1997 (a) $60 million 5.99% - ----------------------- (a) Subject to extension until May 24, 1999 at the option of the counterparty. (6) FAIR VALUE OF FINANCIAL INSTRUMENTS The following table presents the carrying amounts and estimated fair values of the Company's financial instruments at December 31, 1996 and 1995. FASB Statement No. 107, DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS, defines the fair value of a financial instrument as the amount at which the instrument could be exchanged in a current transaction between willing parties. F-13 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 1996 1995 ------------------- ---------------- CARRYING FAIR CARRYING FAIR AMOUNT VALUE AMOUNT VALUE -------- -------- ------- ----- Financial Assets: (IN THOUSANDS) Cash, cash equivalents and restricted cash. . .$ 12,618 $ 12,618 $ 2,866 $ 2,866 Receivables (trade) . . . . . . . . . . . . . . 6,675 6,675 3,154 3,154 Receivables (oil and gas sales) . . . . . . . . 9,031 9,031 3,915 3,915 Commodity option contracts. . . . . . . . . . . 592 (2,172) 165 555 Notes receivable -- affiliate . . . . . . . . . 684 542 684 684 Notes receivable -- other . . . . . . . . . . . 500 500 0 0 Financial liablilites: Payables (trade). . . . . . . . . . . . . . . . 12,718 12,718 5,467 5,467 Deferred revenue. . . . . . . . . . . . . . . . - - 3,319 2,950 Long-term debt. . . . . . . . . . . . . . . . . 100,262 105,512 71,494 71,494 Interest rate swap and option agreements. . . . 1,712 1,712 146 (2,970) The carrying amounts shown in the table are included in the statement of financial position under the indicated captions. The following methods and assumptions were used to estimate the fair value of each class of financial instruments: CASH, TRADE RECEIVABLES, NOTES RECEIVABLE-OTHER AND TRADE PAYABLES: The carrying amounts approximate fair value because of the short maturity of those instruments. COMMODITY OPTION CONTRACTS: The carrying amount comprises the unamortized premiums paid for the option contracts. The fair value is estimated using option pricing models and essentially values the potential for the option contracts to become in-the-money through changes in commodity prices during the remaining terms. NOTES RECEIVABLE-AFFILIATE: The amounts reported relate to notes receivable from an affiliated company. The carrying amount reflects an estimate of net present value using an assumed annual interest rate of 9% based upon the anticipated note payment schedule. DEFERRED REVENUE: The amounts reported relate to the gas purchase agreements described in Note 2. The carrying amount represents the payments received under the agreements for which subsequent delivery is required. The fair value is estimated based upon the commodity price at December 31, 1995 for a similar agreement. LONG-TERM DEBT: The fair value of the Corporation's long-term debt is based upon the quoted market price for this issue at December 31, 1996. INTEREST RATE SWAP AGREEMENTS: At December 31, 1996, the Company had two interest rate swap agreements outstanding with an aggregate notional amount of $84 million. These agreements are more fully described in Note 5. The carrying amount is equal to the sum of the unamortized premiums paid for the agreements and the fair value. The fair values of each of the open interest rate swap agreements were obtained from bank quotes and represent the estimated amount the Company would pay upon termination of the agreements at December 31, 1996, taking into consideration interest rates at that date. F-14 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (7) LONG-TERM DEBT Long-term debt consists of the following (thousands): DECEMBER 31, ------------------- 1996 1995 -------- ------- 10 1/4% Senior Notes due 2006 . . . . .$100,000 $ - Revolver Note . . . . . . . . . . . . . 100 59,824 Term notes. . . . . . . . . . . . . . . - 11,670 Other notes payable . . . . . . . . . . 260 - -------- -------- 100,360 71,494 Less current maturities. . . . . 98 - -------- -------- $100,262 $ 71,494 -------- -------- -------- -------- In October 1996, the Company issued $100 million aggregate principal amount of 10.25% Senior Notes due October 1, 2006 (the "Notes"). The notes were sold at par and interest is payable April 1 and October 1, commencing April 1, 1997. The Notes may not be redeemed prior to October 1, 2001, and thereafter at a premium reducing to par, plus interest, by maturity. There is no mandatory redemption of the Notes required prior to maturity. The notes are general unsecured senior obligations of the Company and rank equally in right of payment with all other senior indebtedness of the Company and senior in right of payment of all existing future subordinated indebtedness of the Company. The Notes are subject to an Indenture between the Company and a trustee. The Indenture restricts, among other things, the Company's ability to incur additional indebtedness, pay dividends or make certain other restricted payments, incur liens, engage in any sale and leaseback transaction, sell stock of subsidiaries, apply net proceeds from certain assets sales, merge or consolidate with any other person, sell, assign, transfer, lease, convey or otherwise dispose of substantially all of the assets of the company, or enter into certain transactions with affiliates. Net proceeds from the sale of the Notes of approximately $96.1 million were used to repay existing indebtedness. In October 1996, the Company entered into a credit agreement (the "1996 Credit Facility") with NationsBank of Texas, N.A. (the "Bank"). The 1996 Credit Facility provides a revolving line of credit with the availability of funds and letters of credit being subject to a borrowing base determination at least semiannually. The borrowing base provides a maximum availability of $50.0 million (which amount is also the initial borrowing base), $100,000 of which was outstanding at December 31, 1996. Availability under the borrowing base is initially limited to $20.0 million for working capital and $30.0 million for acquisitions of oil and gas properties meeting certain criteria established by the Bank. Borrowings under the 1996 Credit Facility bear interest, at the Company's option, at a floating rate which is at or above the NationsBank, N.A. prime rate or the LIBOR rate, depending on the percentage of committed funds which have been borrowed. Interest is payable quarterly and principal will be amortized in twelve equal installments commencing two years from the date of the credit agreement. Under the 1996 Credit Facility, the Company is obligated to pay certain fees to the Bank, including a commitment fee which ranges from 0.30% to 0.40% based on the unused portion of the commitment. The 1996 Credit Facility contains customary restrictive covenants (including restrictions on the payment of dividends and the incurrence of additional indebtedness) and requires the Company to maintain a current ratio of not less than 1.0 to 1.0, a ratio of Adjusted EBITDA to interest expense of not less than 2.0 to 1.0 and a minimum tangible net worth. Borrowings under the 1996 Credit Facility are secured by substantially all of the assets of the Company and any subsidiary of the Company that guarantees the Company's obligations under the 1996 Credit Facility. Initially, none of the Company's subsidiaries have guaranteed the Company's obligations under the 1996 Credit Facility. In June, 1996, the Company entered into a loan agreement with NationsBridge, L.L.C. to provide financing of up to $125 million ("Bridge Loan"). The proceeds of this Bridge Loan were used to finance the 1996 Acquisition, to refinance the 1995 Credit Facility and for other general corporate purposes. The Company F-15 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS capitalized certain costs incurred in obtaining the Bridge Loan and amortized these costs over the estimated life of the Bridge Loan. Concurrent with the Offerings, the $2,665,000 remaining unamortized balance of these deferred charges were expensed as an extraordinary item. In June, 1995, the Company entered into a Credit Agreement ("1995 Credit Facility") with a syndicate of banks to provide financing for an aggregate $185 million senior secured revolving line of credit ("Revolver Notes") and an aggregate $15 million in senior secured term notes ("Term Notes"). In June 1996, these notes in a total amount of $71,494,000 were paid off with a portion of the proceeds of the Bridge Loan. The Company capitalized certain costs incurred in obtaining the 1995 Credit Facility and amortized these costs over the lives of the notes. Concurrent with the Bridge Loan, the $1,640,000 remaining unamortized balance of these deferred charges were expensed as an extraordinary item. Maturities of long-term debt at December 31, 1996 are as follows (thousands): 1997 . . . . . . . . . . . . . . . . . . $ 98 1998 . . . . . . . . . . . . . . . . . . 62 1999 . . . . . . . . . . . . . . . . . . 101 2000 . . . . . . . . . . . . . . . . . . - 2001 . . . . . . . . . . . . . . . . . . 100 Thereafter . . . . . . . . . . . . . . . 100,000 The Company paid interest on long-term debt of $8,838,971, $4,453,684 and $1,356,604 in 1996, 1995 and 1994, respectively. (8) INCOME TAXES Concurrent with the Offerings and upon consummation of the Corporate Reorganization, the Company became a tax paying entity for U.S. Federal income tax purposes. At that date, the tax basis of the Company's assets and liabilities exceeded the book basis by approximately $3,500,000, resulting in a deferred tax asset of approximately $1,200,000. A valuation allowance was provided for 100% of this deferred tax asset. Income tax provision (benefit), generated from $2,978,000 of net income before extraordinary item from the date of the Corporate Reorganization through December 31, 1996, and amounts separately allocated were as follows (thousands): Income (loss) before extraordinary item $ 1,218 Extraordinary loss resulting from early extinguishment of debt (1,042) -------- $ 176 -------- -------- The Company's effective tax rate does not differ materially from the U.S. Federal statutory rate. F-16 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS The tax effects of temporary differences that give rise to significant portions of deferred tax assets and deferred tax liabilities were as follows at December 31, 1996: Deferred tax assets: Net operating loss carryforwards $ 2,805 Interest rate swap agreements held for trading purposes 599 ------- Total gross deferred tax asset 3,404 ------- Deferred tax liabilities: Oil and gas properties, principally due to differences in depletion and the deduction of intangible drilling costs for tax purposes 1,692 ------- Net deferred tax asset 1,712 Valuation allowance of net deferred tax asset (1,712) ------- Net deferred tax asset, net of valuation allowance $ - ------- ------- A valuation is provided for when it is more likely than not that some portion of the deferred tax assets will not be realized. Due to uncertainties arising from a lack of earnings history and based on management's intentions to continue an aggressive drilling program (generating intangible drilling costs which are projected to create future losses for tax purposes), it does not appear more likely than not that the Company will be able to utilize all the available carryforwards prior to their ultimate expiration. At December 31, 1996, the Company had net operating loss carryforwards of approximately $8 million, which are available to offset future regular taxable income, if any. The carryforwards expire December 31, 2011. (9) COMMITMENTS AND CONTINGENCIES LEASES The Company leases equipment and office facilities under operating leases on which rental expense for the years ended December 31, 1996, 1995 and 1994 was $416,442, $311,221, and $197,533, respectively. Future minimum lease commitments under noncancellable operating leases at December 31, 1996 are as follows (thousands): 1997................................... $ 275,695 1998................................... 273,943 1999................................... 260,324 2000................................... 233,880 2001................................... 286,850 Thereafter............................. 1,395,886 EMPLOYMENT AGREEMENTS During the period from June through October, 1996, the Company entered into employment agreements with four of its executive officers. The employment agreements are each for three years and each will automatically renew for successive one-year periods thereafter unless the employee is notified to the contrary. These employment agreements provide for base annual salary levels totaling $990,000 for 1997. F-17 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Each employee would receive his salary for the remaining term of the applicable employment agreement if the Company were to terminate such person's employment other than for cause. If such person were to voluntarily leave his employment with the Company prior to the second anniversary of the employment agreement no further payments would be required. With the exception of one of the Company's executive officers, if a voluntary termination were to occur after the second anniversary of the employee agreement, such person would be entitled to one year's salary from the date of termination. With the exception of one of the Company's executive officers, the employee agreements provide that the covered employee will not compete with the Company for a one year period following his voluntary cessation of employment or termination of employment for cause, in either case if such event occurs within the initial three-year term of the employee agreement. EXPLORATION AND DEVELOPMENT In July 1995, the Republic of Moldova (located in Eastern Europe between Romania and the Ukraine) granted a Concession Agreement to Resource Development Company Limited, L.L.C. ("Redeco"), an entity not affiliated with the Company. The Company paid Redeco $90,000 and agreed to bear the first $2.0 million of Concession expenses in return for a 50.0% interest in Redeco. Upon reaching the $2.0 million in 1996, Redeco elected, according to the agreement, to pay the Company for half of all amounts expended in excess of $750,000 plus interest. The Concession Agreement covers the entire country with respect to oil and gas and other minerals and continues for various time periods depending on the nature of the activity conducted. The Company has no material fixed financial commitments with respect to the Concession. As of December 31, 1996, the Company's share of costs expended was $1,909,349. LETTERS OF CREDIT As a result of certain bonding and trade creditor requirements, the Company has caused irrevocable letters of credit to be issued by a bank totaling $96,000. As of December 31, 1996, no amounts had been drawn on these letters of credit. (10) 401(k) PLAN The Company has established a qualified cash or deferred arrangement under IRS code section 401(k) covering substantially all employees. Under the plan, the employees have an option to make elective contributions of a portion of their eligible compensation, not to exceed specified annual limitations, to the plan and the Company has an option to match a percentage of the employee's contribution. The Company has made matching contributions to the plan totaling $58,713, $22,531, and $8,921 in 1996, 1995 and 1994, respectively. (11) REDEEMABLE PREDECESSOR CAPITAL AND PREDECESSOR CAPITAL During 1995, NationsBanc Capital Corporation ("NBCC") contributed $10 million in exchange for a 30% ownership interest in the Company including the preferential return described below. Of this amount $1,266,000 was attributed to the non-redeemable portion of predecessor capital and $8,734,000 was attributed to redeemable predecessor capital. Preferred return and accretion of predecessor capital included in the consolidated statements of operations and the consolidated statements of stockholders' equity includes accretion of the amount attributable to redeemable predecessor capital to $10,000,000 over a two year period beginning February 17, 1995. As described below, the redemption amount was ultimately to be equal to $10,000,000 plus a preferred return and an additional redemption amount related to NBCC's redeemable interest not subject to preferential return. Concurrent with the Offerings, NBCC's membership interest was redeemed for a total of $15,506,614 and 936,000 common shares were issued to NBCC. After accounting for the Underwriter's exercise of its over- F-18 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS allotment option in November 1996, NBCC owns 8.94% of the 10,475,000 common shares outstanding at December 31, 1996. The following table details the redemption price paid to NBCC: NBCC Preferred Capital Contribution................. $10,000,000 Preferred Return.................................... 2,732,376 ----------- Adjusted NBCC Preferred Capital Contribution........ 12,732,376 PLUS: 10% Redemption Premium........................ 1,273,238 PLUS: Aggregate Redemption Price of NBCC's Redeemable Unrestricted Common Units.......... 1,500,000 ----------- Total Redemption Price Paid NBCC.................... $15,505,614 ----------- ----------- Redeemable predecessor capital was subject to a preferential return of 15% per annum and was redeemable at any time at the Company's option, subject to a redemption premium as described below, or at NBCC's option on February 17, 2003 or at an earlier date upon occurrence of certain events including a change in control, certain changes in management, a change in the Company's status as a limited liability company for tax purposes, or violation of any of various other restrictive provisions contained in the Regulations of Costilla Energy, Inc. (the "Regulations"). The 15% preferred return was treated as a reduction of predecessor capital. The redemption price to be paid by the Company was equal to the initial amount received for the preferred units plus a premium, determined in the year the units are purchased, as follows: Year after Premium February 17, 1995 Percentage ----------------- ---------- 1 10% 2 10% 3 8% 4 6% 5 4% 6 2% 7 0% 8 0% In addition, a portion of NBCC's interest not subject to preferential return was classified as redeemable predecessor capital as the Company could have been be required to repurchase such interest upon the occurrence of certain events similar to those events requiring redemption of the redeemable predecessor capital described above and, in any event, on or after February 17, 2000. Such interest could have, at the Company's option, been repurchased to the extent the Company has exercised its right to redeem all or a portion of the redeemable members' interest subject to the preferential return. The redemption price the Company would have paid in either instance would be determined by the year in which the predecessor capital was repurchased as follows: Before Aggregate February 17 Redemption Price ----------- ---------------- 1996 $ 1 1997 1,500,000 1998 3,000,000 1999 4,500,000 2000 5,500,000 F-19 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Prior to the Offerings in October 1996, the ultimate redemption price of $5,500,000 was being accrued ratably over the period from February 17, 1995 through February 17, 2000 and was treated as a reduction of predecessor capital. (12) STOCK-BASED COMPENSATION OUTSIDE DIRECTORS STOCK OPTION PLAN The Outside Directors Stock Option Plan provides for the issuance of stock options to the outside directors of the Company. A total of 50,000 shares has been authorized and reserved for issuance under the plan, subject to adjustments to reflect changes in the Company's capitalization resulting from stock splits, stock dividends and similar events. Only outside directors are eligible to participate in the plan. Outside directors are those directors of the Company who are not executive officers or regular salaried employees of the Company as of the date the Option is granted. Under the plan, an option for 1,000 shares of Common Stock will be granted to each person who qualifies as an outside director each year that such person is elected as a director of the Company. The exercise price of each option granted under the plan will be the fair market value (as reported on the Nasdaq National Market) of the Common Stock at the time the option is granted and may be paid either in cash, shares of Common Stock or a broker-assisted cashless transaction. Each option will be exercisable immediately, and will expire ten years from the date of grant. As of December 31, 1996, no options had been granted under this plan. BONUS INCENTIVE PLAN The Company has adopted the Bonus Incentive Plan, concurrent with the Offerings. The plan provides that the Board of Directors each year may award bonuses in cash, Common Stock, or some combination thereof, to those officers, directors, employees and advisors of the Company or a subsidiary of the Company, who the Board of Directors determines have contributed to the success of the Company. A total of 150,000 shares of Common Stock has been authorized and reserved for issuance under the plan, subject to adjustments to reflect changes in the Company's capitalization resulting from stock splits, stock dividends and similar events. All officers, directors, employees and advisors of the Company or a subsidiary of the Company who have completed a minimum of 180 days of service and are employed or retained by the Company or such subsidiary on the last day of the plan year, other than such persons who own ten percent or more of the outstanding shares of the Common Stock during that year, are eligible to participate in the plan. Bonus awards will be determined based upon a number of factors, including performance and salary level of the participant and the financial performance of the Company and its subsidiaries. Bonuses will be awarded after review and upon approval of the Board of Directors, subject to the terms and conditions of the plan. As of December 31, 1996, no shares of Common Stock have been issued pursuant to this plan. 1996 STOCK OPTION PLAN The 1996 Stock Option Plan provides for the grant of both incentive stock options and non-qualifying stock options, as well as limited stock appreciation rights and supplemental bonuses, to the employees of the Company and its subsidiaries, including officers and directors who are salaried employees. A total of 850,000 shares of Common Stock has been authorized and reserved for issuance under the plan, subject to adjustments to reflect changes in the Company's capitalization resulting from stock splits, stock dividends and similar events. The plan is administered by the Board of Directors. The Board of Directors has the sole authority to interpret the plan, to determine the persons to whom the options will be granted, to determine the basis upon which the options will be granted, and to determine the exercise price, duration and other terms of the options to be granted under the plan; provided that (a) the exercise price of each option granted under the plan may not be less than the fair market value of the Common Stock on the date the option is granted (and for incentive stock options, 110% of fair market value if the employee is the beneficial owner of 10% or more the Company's voting securities), (b) the exercise price must be paid in cash, by surrendering previously owned shares of Common Stock upon the exercise of the option or by a F-20 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS promissory note or broker-assisted cashless exercise approved by the Board of Directors, (c) the term of the option may not exceed ten years, and (d) no option is transferable other than by will, the laws of descent and distribution or pursuant to a qualified domestic relations order. Limited stock appreciation rights may be granted under the plan with respect to specified options, allowing the option holder to receive, in cash, the difference between the exercise price and the market value in the event of a change in control of the Company. The Board of Directors may also grant supplemental bonuses under the plan which are cash bonuses not to exceed the amount of income tax liability incurred by a plan participant upon the exercise of a non-qualifying stock option or a limited stock appreciation right with respect to which the bonus was granted. The Board of Directors may amend without stockholder approval, in any respect other than any amendment that requires stockholder approval by law, and may modify any outstanding option, including the repricing of non-qualifying options, with the consent of the option holder. There are currently approximately 100 employees who are eligible to participate in the plan. During 1996, the Company granted 711,750 stock options pursuant to the 1996 Stock Option Plan, leaving 138,250 options available for future grant under the plan as of December 31, 1996. The options granted during the year have a term of ten (10) years and an exercise price of $12.50 per share, a price equal to the market price on the date of the grant. The fair value, as calculated under the provision of SFAS 123, of the options granted in 1996 was $6.73 per share. The Company applies APB 25 and related Interpretations in accounting for its stock option awards. Accordingly, no compensation expense has been recognized for its stock option awards. If compensation expense for the stock option awards had been determined consistent with SFAS 123, the Company's net loss and net loss per share, for the year ended December 31, 1996 would have been adjusted to the following pro forma amounts: Net loss $(6,285,276) Net loss per share $ (1.58) The pro forma net loss and pro forma net loss per share amounts noted above are not likely to be representative of the pro forma amounts to be reported in future years. Pro forma adjustments in future years will include compensation expense associated with the options granted in 1996 plus compensation expense associated with any options awarded in future years. As a result, such pro forma compensation expense is likely to be higher than the levels reflected for 1996 if any options are awarded in future years. Under SFAS 123, the fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions used for grants in 1996: Risk-free interest rate 6.25% Expected life 5 years Expected volatility 54% Expected dividend yield 0% (13) RELATED PARTY TRANSACTIONS Certain members and officers of the Company own interests in and hold positions with A&P Meter Service and Supply, Inc. ("A&P"), CSL, 511 Tex L.C. ("511 Tex"), and Valley. Advances from the Company to A&P have been consolidated into two promissory notes. The first note, which was originally executed December 31, 1994, totals $390,000, including accrued interest of $20,000 at December 31, 1996. The note bears interest at a floating rate equal to the "prime rate" plus 1.0%. No principal or interest payments are due until the maturity of the note at December 31, 2004. The note is secured by a second lien on A&P's accounts receivable, inventory and equipment. The second note is in the amount of $294,000, F-21 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS including accrued interest of $47,000, and is dated May 22, 1996. The note bears interest at 6.0% per annum, is unsecured and is payable upon demand. During 1996, the Company paid $520,519 to A&P for goods and services provided. During 1995, the Company paid $612,139 to A&P for goods and services provided. During 1996, 1995 and 1994, the Company paid $517,352, $592,920 and $549,620, respectively, to CSL for management fees and lease payments on equipment. During 1996, the Company paid $50,742 to 511 Tex for office rent. During 1995, the Company paid $67,896 to 511 Tex for office rent. During 1996, 1995 and 1994 the Company paid $484,000, $440,884 and $2,458, respectively, to Valley for gas compression and salt water disposal charges. During 1996, Valley paid the Company $383,139 for operating costs of its salt water disposal wells and gas compressors. During 1995, Valley paid the Company $109,399 for operating costs of its salt water disposal wells and gas compressors. On December 31, 1996, certain officers and related party entities owed the Company $321,310 plus accrued interest of $1,431. During March 1997, the Company has received full payment for these amounts. During 1996 and 1995 the LLC paid $75,000 each year to NationsBank Capital Corp. for management fees. No management fees are due to NationsBank Capital Corp. for any period subsequent to the Offerings. (14) SUBSEQUENT EVENTS On January 1, 1997 Costilla Petroleum Corporation was merged into its parent, Costilla Energy, Inc. and Costilla Energy, Inc. assumed the business, assets and liabilities of Costilla Petroleum Corporation. The merger was effected for administrative purposes and to further reflect the Corporate Reorganization whereby business will be conducted through the Company rather than its predecessor, Costilla Energy, L.L.C. On March 1, 1997 Valley Gathering Company was merged into its parent, Costilla Energy, Inc. and Costilla Energy, Inc. assumed the business, assets and liabilities of Valley Gathering Company. The merger was effected for administrative purposes and to further reflect the Corporate Reorganization whereby business will be conducted through the Company rather than its predecessor, Costilla Energy, L.L.C. On March 5, 1997 Statewide was dissolved. This dissolution was effected for administrative purposes subsequent to the sale on December 31, 1996 of substantially all of the assets of Statewide for net proceeds of approximately $3.0 million. The remaining unsold producing oil and gas property was transferred to its parent, Costilla Energy, Inc., on December 31, 1996. On March 6, 1997, the Company sold its 40.5% interest in a Delaware limited liability company which owns and operates a gas pipeline and associated facilities in Louisiana. This membership interest had been held for resale. The Company sold its interest to another member of the limited liability company for $1,071,150. This amount represented the Company's actual investment of $1,019,771 plus interest of $51,379 since the date of the Company's original investment in April, 1996. The effective date of the sale was the date of the Company's original investment in April, 1996. The Company received a cash payment of $918,184 on March 6, 1997. In addition, the Company received a $152,966 note due in full on July 1, 1997 plus interest at 5.62%. F-22 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (15) OIL AND GAS EXPENDITURES The following table reflects costs incurred in oil and gas property acquisition, exploration and development activities: YEARS ENDED DECEMBER 31, ------------------------------ 1996 1995 1994 ------- ------- ------- (THOUSANDS) Property acquisition costs: Proved $39,505 $52,470 $ 9,649 Unproved 721 1,742 1,232 Exploration 6,760 5,627 2,167 Development 17,723 158 - ------- ------- ------- $64,709 $59,997 $13,048 ------- ------- ------- ------- ------- ------- (16) SUPPLEMENTAL OIL AND GAS RESERVE INFORMATION (UNAUDITED) The estimates of proved oil and gas reserves, which are located principally in the United States, were prepared by the Company as of December 31, 1995 and 1994 and by Williamson Petroleum Consultants as of December 31, 1996. Reserves were estimated in accordance with guidelines established by the SEC and FASB which require that reserve estimates be prepared under existing economic and operating conditions with no provision for price and cost escalations except by contractual arrangements. The Company has presented the reserve estimates utilizing an oil price of $24.17 per Bbl and a gas price of $3.96 per Mcf as of December 31, 1996 and an oil price of $17.79 per Bbl and a gas price of $2.03 per Mcf as of December 31, 1995. OIL AND GAS PRODUCING ACTIVITIES Oil and gas reserve quantity estimates are subject to numerous uncertainties inherent in the estimation of quantities of proved reserves and in the projection of future rates of production and the timing of development expenditures. The accuracy of such estimates is a function of the quality of available data and of engineering and geological interpretation and judgment. Results of subsequent drilling, testing and production may cause either upward or downward revision of previous estimates. Further, the volumes considered to be commercially recoverable fluctuate with changes in prices and operating costs. The Company emphasizes that reserve estimates are inherently imprecise and that estimates of new discoveries are more imprecise than those of currently producing oil and gas properties. Accordingly, these estimates are expected to change as additional information becomes available in the future. F-23 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS OIL AND NATURAL CONDENSATE (MBBLS) GAS (MMCF) ------------------ ---------- Total Proved Reserves: Balance, January 1, 1993 . . . . . . . . . . . . 1,985 16,418 Revisions of previous estimates . . . . . . . 57 1,160 Extensions and discoveries . . . . . . . . . . 380 591 Production . . . . . . . . . . . . . . . . . . (158) (865) Purchases of minerals-in-place . . . . . . . . 101 4,315 ------ ------- Balance, December 31, 1993 . . . . . . . . . . . 2,365 21,619 Revisions of previous estimates . . . . . . . (460) (5,424) Extensions and discoveries . . . . . . . . . . 761 1,520 Production . . . . . . . . . . . . . . . . . . (330) (1,600) Purchases of minerals-in-place . . . . . . . . 1,673 11,397 ------ ------- Balance, December 31, 1994 . . . . . . . . . . . 4,009 27,512 Revisions of previous estimates . . . . . . . (570) 425 Extensions and discoveries . . . . . . . . . . 605 8,922 Production . . . . . . . . . . . . . . . . . . (950) (4,806) Purchases of minerals-in-place . . . . . . . . 7,694 46,099 ------ ------- Balance, December 31, 1995 . . . . . . . . . . . 10,788 78,152 Revisions of previous estimates . . . . . . . 1,782 5,440 Extensions and discoveries . . . . . . . . . . 1,169 13,581 Production . . . . . . . . . . . . . . . . . . (1,726) (9,205) Sales of minerals-in-place . . . . . . . . . . (119) (482) Purchases of minerals-in-place . . . . . . . . 5,106 32,786 ------ ------- Balance, December 31, 1996 . . . . . . . . . . 17,000 120,272 ------ ------- ------ ------- Proved Developed Reserves: January 1, 1993. . . . . . . . . . . . . . . . 1,488 10,055 December 31, 1993. . . . . . . . . . . . . . . 1,785 13,268 December 31, 1994. . . . . . . . . . . . . . . 2,632 16,340 December 31, 1995. . . . . . . . . . . . . . . 8,566 57,393 December 31, 1996. . . . . . . . . . . . . . . 14,018 90,023 F-24 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS STANDARDIZED MEASURE OF DISCOUNTED FUTURE NET CASH FLOWS RELATING TO PROVED OIL AND GAS RESERVES The standardized measure of discounted future net cash flows is computed by applying year-end prices of oil and gas (with consideration of price changes only to the extent provided by contractual arrangements) to the estimated future production of proved oil and gas reserves less estimated future expenditures (based on year-end costs) to be incurred in developing and producing the proved reserves, less estimated future income tax expenses (based on year-end statutory tax rates, with consideration of future tax rates already legislated) to be incurred on pretax net cash flows less tax basis of the properties and available credits, and assuming continuation of existing economic conditions. The estimated future net cash flows are then discounted using a rate of 10% per year to reflect the estimated timing of the future cash flows. Discounted future cash flow estimates like those shows below are not intended to represent estimates of the fair value of oil and gas properties. Estimates of fair value should also consider probable reserves, anticipated future oil and gas prices, interest rates, changes in development and production costs and risks associated with future production. Because of these and other considerations, any estimate of fair value is necessarily subjective and imprecise. YEARS ENDED DECEMBER 31, ----------------------------------- 1996 1995 1994 --------- --------- -------- (THOUSANDS) Future cash flows . . . . . . . . . . . . . . . . . . . $ 887,100 $ 350,653 $122,098 Future costs: Production. . . . . . . . . . . . . . . . . . . . . . (323,288) (145,510) (46,345) Development . . . . . . . . . . . . . . . . . . . . . (25,469) (16,806) (7,157) --------- --------- -------- Future net cash flows before income taxes . . . . . . . 538,343 188,337 68,596 Future income taxes . . . . . . . . . . . . . . . . . . 144,836 - - --------- --------- -------- Future net cash flows . . . . . . . . . . . . . . . . . 393,507 188,337 68,596 10% annual discount for estimated timing of cash flows . . . . . . . . . . . . . . . . . . . . . . (165,273) (75,041) (31,817) --------- --------- -------- Standardized measure of discounted net cash flows. . . . . . . . . . . . . . . . . . . . . . . . . $ 228,234 $ 113,296 $ 36,779 --------- --------- -------- --------- --------- -------- F-25 COSTILLA ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS CHANGES IN STANDARDIZED MEASURE OF DISCOUNTED FUTURE NET CASH FLOWS FROM PROVED RESERVES (IN THOUSANDS) YEARS ENDED DECEMBER 31, ----------------------------- 1996 1995 1994 -------- -------- ------- (THOUSANDS) Increase (decrease): Purchase of minerals-in place . . . . . . . . . . . . $ 49,966 $ 77,343 $15,231 Extensions and discoveries and improved recovery, net of future production and development costs. . . . . . . . . . . . . . . . . . 25,910 9,799 4,072 Accretion of discount . . . . . . . . . . . . . . . . 11,330 3,678 2,638 Net change in sales prices net of production costs. . . . . . . . . . . . . . . . . . . . . . . . 108,160 (3,422) 503 Changes in estimated future development costs. . . . . . . . . . . . . . . . . . 4,187 (2,419) 940 Revisions of quantity estimates . . . . . . . . . . . 29,485 (2,855) (7,248) Net change in income taxes. . . . . . . . . . . . . . (83,570) - - Sales, net of production costs. . . . . . . . . . . . (32,146) (11,338) (5,286) Sales of minerals in place. . . . . . . . . . . . . . (1,330) - - Changes of production rates (timing) and other. . . . . . . . . . . . . . . . . . . . . . . . 2,946 5,731 (448) -------- -------- ------- Net increase. . . . . . . . . . . . . . . . . . . . 114,938 76,517 10,402 Standardized measure of discounted future net cash flows: Beginning of period. . . . . . . . . . . . . . . . 113,296 36,779 26,377 -------- -------- ------- End of period. . . . . . . . . . . . . . . . . . . $228,234 $113,296 $36,779 -------- -------- ------- -------- -------- ------- The 1996 future cash flows shown above include amounts attributable to proved undeveloped reserves requiring approximately $24.6 million of future development costs. If these reserves are not developed, the standardized measure of discounted future net cash flows for 1996 shown above would be reduced by approximately $44.4 million. F-26 EXHIBIT INDEX Exhibit Number Description of Exhibit - ------- ---------------------- *3.1 Certificate of Incorporation of the Company *3.2 Bylaws of the Company *4.1 Form of Notes or Global Certificate (included as Exhibit A to the Indenture) *4.2 Indenture dated as of October 1, 1996 by and between State Street Bank and Trust Company, as Trustee, and the Company, as Issuer **4.3 Form of Stock Certificate ***10.1 Credit Agreement dated October 10, 1996 between NationsBank of Texas, N.A., as agent, the Lenders named therein and the Company *10.2 Lease Agreement dated January 12, 1996 between Independence Plaza, Ltd. and Costilla Energy, L.L.C. *10.3 Concession Agreement dated July 6, 1995 between the Government of the Republic of Moldova and Resource Development Company Ltd., L.L.C. (DE) *10.4 Consolidation Agreement dated October 8, 1996 *10.5 1996 Stock Option Plan *10.6 Outside Directors Stock Option Plan *10.7 Employment Agreement between the Company and Bobby W. Page effective June 30, 1996 *10.8 Employment Agreement between the Company and Cadell S. Liedtke effective October 8, 1996 *10.9 Employment Agreement between the Company and Michael J. Grella effective October 8, 1996 *10.10 Employment Agreement between the Company and Henry G. Musselman effective October 8, 1996 *10.11 Purchase and Sale Agreement dated April 3, 1995 by and between Parker & Parsley Development L.P., Parker & Parsley Producing L.P. and Parker & Parsley Gas Processing Co., as Seller, and Costilla Petroleum Corporation and Costilla Energy, L.L.C., as Purchaser *10.12 Purchase and Sale Agreement dated March 8, 1996 by and between Parker & Parsley Development L.P., Parker & Parsley Producing L.P. and Parker & Parsley Gas Processing Co., as Seller, and Costilla Petroleum Corporation and Costilla Energy, L.L.C., as Purchaser *10.13 Bonus Incentive Plan ***10.14 Letter Agreement dated December 18, 1996 by and between Statewide Minerals, Inc., as Seller, Boldrick Partners, as Buyer Exhibit Number Description of Exhibit ------- ---------------------- ***10.15 Stock Purchase Agreement dated December 31, 1996 by and between ERI Investments, Inc. and the Company ***12.1 Computation of Ratio of Adjusted EBITDA to Interest Expense **16.1 Letter Regarding Change of Accountants ***21.1 Subsidiaries of the Registrant ***23.1 Consent of KPMG Peat Marwick LLP ***23.2 Consent of Williamson Petroleum Consultants, Inc. ***23.3 Consent of Elms, Faris & Co., P.C. ***24.1 Power of Attorney ***24.2 Certified copy of resolution of Board of Directors of Costilla Energy, Inc. authorizing signature by Power of Attorney ****27.1 Financial Data Schedule - ------------------- * Incorporated by reference to Registration Statement on Form S-1, File No. 333-08909 ** Incorporated by reference to Registration Statement on Form S-1, File No. 333-08913. *** Previously filed **** Filed herewith