1 EXHIBIT 12.2 PRO FORMA RATIO OF EARNINGS TO FIXED CHARGES YEAR ENDED DECEMBER 31, 1993 (DOLLARS IN THOUSANDS) PRO HISTORICAL ADJUSTMENTS(1) FORMA -------- --------- -------- Net pretax income(2)..................................... $ 26,983 $ (9,007) $ 17,976 Fixed Charges Interest expense....................................... 30,506 9,007 39,513 Preferred stock dividends of a subsidiary.............. 1,681 1,681 Capitalized debt cost.................................. 1,536 1,536 Interest portion of rent expenses...................... 2,777 2,777 -------- --------- -------- Total fixed charges............................ 36,500 9,007 45,507 Less: Capitalized interest, net........................ 4,623 4,623 -------- --------- -------- 31,877 9,007 40,884 Earnings before fixed charges............................ $ 58,860 $ 58,860 -------- --------- -------- -------- --------- -------- Ratio of earnings to fixed charges....................... 1.61 1.29 - ------------ (1) The pro forma adjustments give effect to increased interest expense, as if such transaction had taken place January 1, 1993 as a result of the issuance of $200 million of the Notes at a pro forma annual interest rate of 8.6% and the application of proceeds to the reduction of debt under the revolving credit facility and the uncommitted and unsecured lines of credit. (2) During 1993, the Company recorded a non-cash charge to depreciation, depletion and amortization of $103 million pretax ($48 million after-tax) for the write-down of its investment in the U. K. North Sea's Piper field. Excluding the effect of the Piper write-down, the historical ratio of earnings to fixed charges for 1993 would have been 4.45. Excluding the effect of the Piper write-down, this pro forma ratio would have been 3.57.