1 EXHIBIT 12.1 Computation of Ratio of Earnings To Fixed Charges For the Five Years Ended December 31, 1999 (Unaudited) (Dollars in Millions) Year Ended December 31, ------------------------------------------ 1999 1998 1997 1996 1995 ---- ---- ---- ---- ---- Earnings (Loss) Income (Loss) Before Income Taxes..................... $ 23 $(598) $470 $473 $(669) Add Interest and fixed charges.......................... 211 193 174 170 164 Portion of rent under long-term operating leases representative of an interest factor....... 8 7 8 9 8 ---- ----- ---- ---- ----- Total Earnings (Loss) Available for Fixed Charges..... $242 $(398) $652 $652 $(497) ==== ===== ==== ==== ===== Fixed Charges Interest and fixed charges............................ $211 $ 193 $174 $170 $ 164 Portion of rent under long-term operating leases representative of an interest factor......... 8 7 8 9 8 Capitalized interest.................................. -- 14 12 14 19 ---- ----- ---- ---- ----- Total Fixed Charges................................... $219 $ 214 $194 $193 $ 191 ==== ===== ==== ==== ===== Ratio of Earnings to Fixed Charges(1)................... 1.11x 0.00x 3.36x 3.38x 0.00x ==== ===== ==== ==== ===== - ------------------ (1) Total earnings available for fixed charges in 1998 and 1995 were inadequate to cover fixed charges in the amount of approximately $612 million and $688 million, respectively. The total earnings available for fixed charges in 1998 and 1995 were inadequate to cover total fixed charges due to the impairment of oil and gas properties.