1 EXHIBIT 12.1 CONOCO COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN MILLIONS) NINE MONTHS ENDED YEAR ENDED DECEMBER 31 SEPTEMBER 30, ------------------------------------------ 1998 1997 1996 1995 1994 1993 ------------- ------ ------ ------ ------ ------ Net income............................ $ 713 $1,097 $ 863 $ 575 $ 422 $ 755 Provision for income taxes............ 373 1,010 1,038 774 551 424 Equity in earnings of investees....... (30) (40) 25 (22) (25) (45) ------ ------ ------ ------ ------ ------ Pre-tax income before adjustment for minority interests in consolidated subsidiaries or income or loss from equity investees........................ 1,056 2,067 1,926 1,327 948 1,134 Fixed charges (see below)............. 224 174 188 210 160 165 Amortization of capitalized interest............................ 28 46 53 53 49 70 Distributed income of equity investees........................... 63 58 85 42 75 25 Capitalized interest.................. (69) (94) (75) (95) (59) (49) ------ ------ ------ ------ ------ ------ Total adjusted earnings available for payment of fixed charges(a)(b).................... $1,302 $2,251 $2,177 $1,537 $1,173 $1,345 ====== ====== ====== ====== ====== ====== Ratio of earnings to fixed charges.... 5.8x 12.9x 11.6x 7.3x 7.3x 8.2x Fixed charges: Interest and debt expense -- borrowings............ $ 108 $ 36 $ 74 $ 74 $ 63 $ 67 Capitalized interest................ 69 94 75 95 59 49 Rental expense representative of interest factor.................. 47 44 39 41 38 49 ------ ------ ------ ------ ------ ------ Total fixed charges......... $ 224 $ 174 $ 188 $ 210 $ 160 $ 165 ====== ====== ====== ====== ====== ====== - --------------- (a) No pre-tax losses of equity investees for which charges arising from guarantees are included in fixed charges. (b) No fixed charges in subsidiaries with minority interests.