SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A AMENDMENT NO. 1 CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) July 1, 1997 PetroCorp Incorporated (Exact name of registrant as specified in its charter) Texas 0-22650 76-0380430 (State or other jurisdiction (Commission File Number) (IRS Employer jurisdiction of incorporation) Identification No.) 16800 Greenspoint Park Drive Suite 300, North Atrium Houston, Texas 77060-2391 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (281) 875-2500 Not applicable (Former name or former address, if changed since last report) ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. (A) FINANCIAL STATEMENTS OF BUSINESSES ACQUIRED. The following financial statements of Great River Oil & Gas Corporation are attached as part of this report. Statement of Gross Oil and Gas Revenue and Direct Operating and Production Expenses of the Acquisition Properties for the year ended December 31, 1996. Notes to Statement of Gross Oil and Gas Revenue and Direct Operating and Production Expenses of the Acquisition Properties. (B) PRO FORMA FINANCIAL INFORMATION. The following pro forma financial information of PetroCorp Incorporated is attached as part of this report. Unaudited Pro Forma Consolidated Balance Sheet as of June 30, 1997. Unaudited Pro Form Consolidated Statement of Operations for the six months ended June 30, 1997. Unaudited Pro Forma Consolidated Statement of Operations for the twelve months ended December 31, 1996. PETROCORP INCORPORATED STATEMENT OF GROSS OIL AND GAS REVENUE AND DIRECT OPERATING AND PRODUCTION EXPENSES OF THE ACQUISITION PROPERTIES FOR THE YEAR ENDED DECEMBER 31, 1996 REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS To the Stockholders and Board of Directors of PetroCorp Incorporated: We have audited the accompanying statement of gross oil and gas revenue and direct operating and production expenses of the properties listed in Note 1 (the "Acquisition Properties") acquired by PetroCorp Incorporated from Great River Oil and Gas Corporation for the year ended December 31, 1996. This statement is the responsibility of management. Our responsibility is to express an opinion on this statement 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 statement is free of material misstatement. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the statement. We believe our audit provides a reasonable basis for our opinion. The accompanying statement was prepared for the purpose of complying with the rules and regulations of the Securities and Exchange Commission (for inclusion in an amendment to Form 8-K to be filed by PetroCorp Incorporated) and is not intended to be a complete presentation of the revenues and expenses of the Acquisition Properties. In our opinion, the statement referred to above presents fairly, in all material respects, the gross oil and gas revenues and direct operating and production expenses of the Acquisition Properties for the year ended December 31, 1996, in conformity with generally accepted accounting principles. /s/ ARTHUR ANDERSEN LLP New Orleans, Louisiana July 3, 1997 PETROCORP INCORPORATED STATEMENT OF GROSS OIL AND GAS REVENUE AND DIRECT OPERATING AND PRODUCTION EXPENSES OF THE ACQUISITION PROPERTIES (NOTE 1) FOR THE YEAR ENDED DECEMBER 31, 1996 Gross oil and gas revenues $ 6,710,332 ----------- Less: Operating Expenses 547,280 Production Taxes 286,457 ----------- Total Expense 833,737 ----------- Revenues in excess of direct operating and production expenses $ 5,876,595 =========== See accompanying notes to financial statement. PETROCORP INCORPORATED NOTES TO STATEMENT OF GROSS OIL AND GAS REVENUE AND DIRECT OPERATING AND PRODUCTION EXPENSES OF THE ACQUISITION PROPERTIES 1. BASIS OF PRESENTATION On July 1, 1997, PetroCorp Incorporated (the "Company") acquired all or a portion of Great River Oil and Gas Corporation's interest in the following oil and gas properties (the Acquisition Properties): Field Well Name Riceville John B. Baker #1 Riceville Zena L. Humble #1 Riceville John B. Baker SWD #1 Riceville Commingling Facility #1 East Barnett ATIC 31-13 #1 Barnett Crossroads ATIC 17-16 #1 North Barnett Escambia River 26-7 #1 East Lake Washington Cockrell Moran C-1 Thibodeaux Paul T. Ray #1 Thibodeaux Paul T. Ray #2 West Delta Block 51/52 State 12989 #1 West Delta Block 51/52 State 12965 #4 West Delta Block 51/52 State 12965 #4-D West Delta Block 51/52 State 12965 #1 The accompanying statement of gross oil and gas revenue and direct operating and production expenses, which is prepared on the accrual basis of accounting, relates to the interests in producing oil and gas properties described above and may not be representative of future operations. The statement does not include Federal and state income taxes, interest, depletion, depreciation and amortization or general and administrative expenses because such amounts would not be indicative of those expenses which would be incurred by the Company. The statement includes gross oil and gas revenue and direct operating and production expenses, including production and ad valorum taxes, for the entire period presented. 2. CAPITAL EXPENDITURES There were no significant costs incurred related to exploration or development activities on the Acquisition Properties for the year ended December 31, 1996. 3. SUPPLEMENTAL INFORMATION ON OIL AND GAS RESERVES (UNAUDITED) There are numerous uncertainties inherent in estimating quantities of proved reserves and in projecting the future rates of production and timing of development expenditures. The following reserve data represent estimates only and should not be construed as the current market value of the Acquisition Properties or the cost that would be incurred to obtain equivalent reserves. An analysis of the estimated changes in quantities of proved natural gas reserves for the year ended December 31, 1996 is shown below. Natural Gas (Mcf) 1996 ----------------- ---- Proved Reserves: Beginning of period 8,507,600 Production (1,814,550) Revisions of previous estimates 32,350 --------- End of period 6,725,400 ========= Proved Developed Reserves: Beginning of period 6,939,500 ========= End of period 5,146,100 ========= Oil (bbls) ---------- Proved Reserves: Beginning of year 358,300 Production (73,221) Revisions of previous estimates 721 --------- End of year 285,800 ========= Proved Developed Reserves: Beginning of year 323,100 ========= End of year 250,300 ========= The estimated standardized measure of discounted future net cash flows relating to proved reserves at December 31, 1996 is shown below, in thousands. No deductions were made for general overhead, depletion, depreciation, and amortization, debt service and income taxes or any indirect costs. 1996 ---- Future cash inflows $ 37,539,900 Future production and development costs 4,748,400 ------------ Future net cash flows 32,791,500 10% annual discount for estimated timing of cash flows 7,785,700 ------------ Standardized measure of discounted future net cash flows relating to proved reserves $ 25,005,800 ============ An analysis of the sources of changes in the standardized measure of discounted future net cash flows relating to proved reserves on the pricing basis described above for the Acquisition Properties for the year ended December 31, 1996 is shown below, in thousands. 1996 ---- Balance, beginning of period $ 19,647,300 Increase (decrease) in discounted future net cash flows: Sales and transfers of oil and gas produced, net of production costs (5,876,595) Accretion of discount 1,964,730 Net change in sales price and production costs 9,456,773 Revisions of quantity estimates 164,049 Other (350,457) ------------ Balance, end of period $ 25,005,800 ============ PETROCORP INCORPORATED UNAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET JUNE 30, 1997 (IN THOUSANDS) PETROCORP ACQUISITION HISTORICAL ADJUSTMENTS PRO FORMA ---------- ----------- --------- Current Assets $ 24,009 $ (7,995) $ 16,014 Property, Plant and Equipment, net 105,993 9,100(A) 115,093 Other Assets, net 1,489 (1,105) 384 --------- --------- --------- Total Assets $ 131,491 $ 0 $ 131,491 ========= ========= ========= Current Liabilities Accounts Payable and Accrued Liabilities $ 7,008 $ - $ 7,008 Current Portion of Long-Term Debt 6,057 - 6,057 --------- --------- --------- Total Current Liabilities 13,065 - 13,065 Long Term Debt 43,491(B) - 43,491 Deferred Taxes and Other Liabilities 8,212 - 8,212 Shareholders' Equity 66,723 - 66,723 --------- --------- --------- Total Liabilities and Shareholders' Equity $ 131,491 $ 0 $ 131,491 ========= ========= ========= NOTES TO UNAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET (A) To record purchase price of the oil and gas properties obtained from Great River Oil & Gas Corp. (B) Includes debt incurred by PetroCorp in connection with the Acquisition. PETROCORP INCORPORATED UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS SIX MONTHS ENDED JUNE 30, 1997 (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) PETROCORP ACQUISITION HISTORICAL ADJUSTMENTS PRO FORMA ---------- ----------- --------- Revenues: Oil and gas $ 16,141 $ 2,560 (A) $ 18,701 Plant processing 721 - 721 Other 118 - 118 --------- --------- --------- Total revenue 16,980 2,560 19,540 Expenses: Production costs 3,571 $ 390 (A) 3,961 Depreciation, depletion & amortization 7,917 1,085 (B) 9,002 General and administrative 2,649 - 2,649 Other operating expenses 85 - 85 --------- --------- --------- Total Operating Expenses 14,222 1,475 15,697 --------- --------- --------- Income from operations 2,758 1,085 3,843 Investment and other income 288 - 288 Interest and other expense (1,592) $ (309)(C) (1,901) --------- --------- --------- Income before taxes 1,454 776 2,230 Income tax provision 235 287 (D) 522 --------- --------- --------- Net income $ 1,219 $ 489 $ 1,708 ========= ========= ========= Net income per share $ 0.14 $ 0.06 $ 0.20 Weighted average number of common shares 8,699 8,699 8,699 NOTES TO UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (A) To record the incremental effect of oil and gas sales and the related operating expenses from properties purchased from Great River Oil & Gas Corp. (B) To record additional depreciation, depletion and amortization expense. (C) To record interest expense relating to the debt incurred in connection with the Acquisition at an effective rate of 6.8%. (D) To record the incremental tax effect of the Acquisition adjustments at an effective tax rate of 37%. PETROCORP INCORPORATED UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS TWELVE MONTHS ENDED DECEMBER 31, 1996 (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) PETROCORP ACQUISITION HISTORICAL ADJUSTMENTS PRO FORMA ---------- ----------- --------- Revenues: Oil and gas $ 29,718 $ 6,710 (A) $ 36,428 Plant processing 1,658 - 1,658 Other 170 - 170 --------- --------- --------- Total revenue 31,546 6,710 38,256 Expenses: Production costs 6,660 834 (A) 7,494 Depreciation, depletion & amortization 12,433 2,220 (B) 14,653 General and administrative 4,672 - 4,672 Other operating expenses 203 - 203 --------- --------- --------- Total Operating Expenses 23,968 3,054 27,022 --------- --------- --------- Income from operations 7,578 3,656 11,234 Investment and other income 1,910 - 1,910 Interest and other expense (3,437) (619) (C) (4,056) --------- --------- --------- Income before taxes 6,051 3,037 9,088 Income tax provision 1,807 1,124 (D) 2,931 --------- --------- --------- Net income $ 4,244 $ 1,913 $ 6,157 ========= ========= ========= Net income per share $ 0.49 $ 0.22 $ 0.71 Weighted average number of common shares 8,698 8,698 8,698 NOTES TO UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (A) To record the incremental effect of oil and gas sales and the related operating expenses from properties purchased from Great River Oil & Gas Corp. (B) To record additional depreciation, depletion and amortization expense. (C) To record interest expense relating to the debt incurred in connection with the Acquisition at an effective rate of 6.8%. (D) To record the incremental tax effect of the Acquisition adjustments at an effective rate of 37%. (C) EXHIBITS. Exhibit No. Exhibits - ----------- -------- 2.1* Agreement for Purchase and Sale dated June 5, 1997 between PetroCorp Incorporated and Great River Oil and Gas Corporation. 2.2* First Amendment to Agreement for Purchase and Sale dated June 30, 1997 between PetroCorp Incorporated and Great River Oil and Gas Corporation. 10* Credit Agreement dated as of June 26, 1997 among PetroCorp Incorporated, PCC Energy Limited, PCC Energy Corp. and Toronto-Dominion (Texas), Inc. and Toronto-Dominion Bank. 23.1 Consent of Accountants. 99* Press release dated July 16, 1997. ___________ * Previously filed. SIGNATURES Pursuant to the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: September 9, 1997 PETROCORP INCORPORATED (Registrant) /s/ CRAIG K. TOWNSEND _________________________________ (Signature) Craig K. Townsend Vice President-Finance, Secretary and Treasurer