EXHIBIT 99 The Wiser Oil Company Unaudited Pro Forma Condensed Consolidated Statement of Income For the Year Ended December 31, 1998 Appalachia and The Minerals Pro Forma Pro Forma Company Properties Adjustments Company ---------- ----------- ------------ ---------- (000's except per share data) Revenues: Oil and gas sales......................... $ 59,197 $(9,781) $ -- $ 49,416 Dividends and interest.................... 269 -- 1,467(A) 1,736 Gain on sales of properties............... 615 -- -- 615 Pension plan curtailment.................. 778 -- -- 778 Other..................................... 549 (473) -- 76 ----------------------------------------------- 61,408 (10,254) 1,467 52,621 ----------------------------------------------- Costs and Expenses: Production and operating.................. 26,529 (3,280) -- 23,249 Purchased natural gas..................... 1,440 (1,440) -- -- Depreciation, depletion and amortization.. 25,811 (2,253) -- 23,558 Property impairments...................... 3,838 (300) -- 3,538 Exploration............................... 15,328 -- -- 15,328 General and administrative................ 10,571 -- -- 10,571 Interest expense.......................... 13,097 -- (595)(B) 12,502 ----------------------------------------------- 96,614 (7,273) (595) 88,746 ----------------------------------------------- Earnings (Loss) Before Income Taxes........ (35,206) (2,981) 2,062 (36,125) Income Tax Expense (Benefit)............... (10,740) (909) 628 (11,021) ----------------------------------------------- Net Income (Loss).......................... $(24,466) $(2,072) $ 1,434 $(25,104) =============================================== Earnings (Loss) Per Share: Basic..................................... $(2.73) $ (0.23) $ 0.16 $(2.80) =============================================== Diluted................................... $(2.73) $ (0.23) $ 0.16 $(2.80) =============================================== The Wiser Oil Company Unaudited Pro Forma Condensed Consolidated Balance Sheet December 31, 1998 The Pro Forma Pro Forma Company Adjustments Company ---------- ------------------- ---------- Assets: (000's) Current Assets: Cash and cash equivalents................ $ 2,779 $ 15,187 (C) 17,966 Accounts receivable...................... 9,102 -- 9,102 Inventories.............................. 669 (310) (D) 359 Income taxes receivable.................. 1,270 -- 1,270 Prepaid expenses......................... 1,035 -- 1,035 ------------------------------------------ Total current assets.................... 14,855 14,877 29,732 ------------------------------------------ Property and Equipment, at cost: Oil and gas properties................... 367,974 (77,620) (D) 290,354 Other properties......................... 5,523 (1,617) (D) 3,906 ------------------------------------------ 373,497 (79,237) 294,260 Accumulated depreciation, depletion and amortization........................... (160,202) 46,387 (D) (113,815) ------------------------------------------ Net property and equipment............... 213,295 (32,850) 180,445 Other Assets............................. 3,660 -- 3,660 ------------------------------------------ 231,810 (17,973) 213,837 ========================================== Liabilities and Stockholders' Equity: Current Liabilities: Accounts payable......................... $ 10,473 $ -- $ 10,473 Current portion of long-term debt........ 21,000 (21,000) (C) -- Accrued liabilities...................... 2,730 -- 2,730 ------------------------------------------ Total current assets.................... 34,203 (21,000) 13,203 ------------------------------------------ Long-term Debt............................ 124,452 -- 124,452 Deferred Benefit Costs.................... 378 -- 378 Deferred Income Taxes..................... 686 -- 686 Stockholders' Equity: Common stock............................. 27,385 -- 27,385 Paid-in capital.......................... 3,223 -- 3,223 Retained earnings........................ 43,090 3,027 (C) (D) 46,117 Foreign currency translation............. 1,122 -- 1,122 Treasury stock........................... (2,729) -- (2,729) ------------------------------------------ Total stockholders' equity.............. 72,091 3,027 75,118 ------------------------------------------ 231,810 (17,973) 213,837 ========================================== The Wiser Oil Company Notes to Unaudited Pro Forma Condensed Financial Statements For the Year Ended December 31, 1998 Note 1. Basis of Presentation The unaudited pro forma condensed financial statements of The Wiser Oil Company for the year ended December 31, 1998 has been prepared to give effect to the sale of virtually all of the Company's U.S. royalty interests and all of its oil and gas properties located in Appalachia (the "Appalachia and Minerals Properties"). The U.S. royalty interests were sold to Prince Minerals, Ltd. on April 21, 1999 for $10,000,000, before fees and adjustments, and the Appalachia properties were sold to Columbia Natural Resources on May 12, 1999 for $28,000,000, before fees and adjustments. The net proceeds received by the Company from the sale of the Appalachia and Minerals Properties were $36,187,000 and the Company recognized a gain on the sale of $3,918,000. The unaudited pro forma condensed financial statements included herein are not necessarily indicative of the results that might have occurred had the transactions taken place on the dates assumed for pro forma presentations and are not intended to be a projection of future results. Future results may vary significantly from the results reflected in the accompanying unaudited pro forma condensed statements because of normal production declines, changes in product prices, future acquisitions and divestitures, future development and exploration activities and other factors. The unaudited pro forma condensed financial statements should be read in conjunction with the Consolidated Financial Statements of The Wiser Oil Company included in the Annual Report on Form 10-K for the year ended December 31, 1998. The unaudited pro forma condensed consolidated statement of income for the year ended December 31, 1998 is presented as if the sale of the Appalachia and Minerals Properties occurred on January 1, 1998 and the unaudited condensed consolidated balance sheet is presented as if the sale of the Appalachia and Minerals Properties occurred on December 31, 1998. The column labeled "The Company" represents the condensed consolidated statement of income of The Wiser Oil Company for the year ended December 31, 1998 and the condensed consolidated balance sheet of The Wiser Oil Company at December 31, 1998. The column labeled "Appalachia and Mineral Properties" represents the results of operations of the sold properties for the year ended December 31, 1998 prior to their sale in 1999. Note 2. Estimated Quantities of Proved Reserves Following is a summary of the proved oil and gas reserves and standardized measure of discounted future net cash flows of proved oil and gas reserves at December 31, 1998. The column labeled "The Company" represents the proved oil and gas reserves information of The Wiser Oil Company at December 31, 1998 and the column labeled "Pro Forma" represents such reserve information without the Appalachia and Minerals Properties. The Company Pro Forma --------- --------- Oil and NGL's (MBbls) 27,988 26,401 Gas (MMcf) 119,981 81,817 Standardized Measure (000's) $113,232 $91,378 During 1998, the Appalachia and Minerals Properties produced 161,000 barrels of oil and NGL's and 3,418,000 Mcf of natural gas. The Wiser Oil Company Notes to Unaudited Pro Forma Condensed Financial Statements For the Year Ended December 31, 1998 3. Pro Forma Adjustments Following are descriptions of the pro forma adjustments used in the preparation of the accompanying unaudited pro forma condensed financial statements: (A) Pro forma adjustment to recognize interest income earned on the net cash receipts from the sale of the Appalachia and Minerals Properties. Interest income was computed using the monthly average interest rates realized in 1998 ranging from 4.9% to 5.5%. Net cash receipts were computed using the net proceeds of $36,187,000 less repayments of long- term debt during 1998 as follows: May $8,500,000 June 1,500,000 July 2,000,000 September 3,000,000 November 6,000,000 ------------ $ 21,000,000 ============ (B) Pro forma adjustment to reduce interest expense for repayment of $21,000,000 of long-term debt. (C) Pro forma adjustment to recognize the net proceeds of $36,187,000 from the sale of the Appalachia and Minerals Properties and the use of $21,000,000 of the net proceeds to repay long-term debt, as if the transaction had occurred on December 31, 1998. (D) Pro forma adjustment to remove the December 31, 1998 net cost basis of the Appalachia and Minerals Properties.