1 EXHIBIT 12 OCCIDENTAL PETROLEUM CORPORATION AND SUBSIDIARIES COMPUTATION OF TOTAL ENTERPRISE RATIOS OF EARNINGS TO FIXED CHARGES (Amounts in millions, except ratios) Three Months Ended March 31 Year Ended December 31 ------------------- ------------------------------------------------------- 1998 1997 1997 1996 1995 1994 1993 - --------------------------------------------- ------- ------ ------ ------ ------ ------ ------ Income(loss) from continuing operations(a) $ 139 $ 121 $ 245 $ 486 $ 325 $ (236) $ (190) ------ ------ ------ ------ ------ ------ ------ Add: Provision(credit) for taxes on income (other than foreign and gas taxes) 80 68 47 99 155 (59) (23) Interest and debt expense(b) 135 110 446 492 591 586 598 Portion of lease rentals representative of the interest factor 9 9 39 38 43 50 49 ------ ------ ------ ------ ------ ------ ------ 224 187 532 629 789 577 624 ------ ------ ------ ------ ------ ------ ------ Earnings(loss) before fixed charges $ 363 $ 308 $ 777 $1,115 $1,114 $ 341 $ 434 ====== ====== ====== ====== ====== ====== ====== Fixed charges Interest and debt expense including capitalized interest(b) $ 139 $ 113 $ 462 $ 499 $ 595 $ 589 $ 609 Portion of lease rentals representative of the interest factor 9 9 39 38 43 50 49 ------ ------ ------ ------ ------ ------ ------ Total fixed charges $ 148 $ 122 $ 501 $ 537 $ 638 $ 639 $ 658 ====== ====== ====== ====== ====== ====== ====== Ratio of earnings to fixed charges 2.45 2.52 1.55 2.08 1.75 n/a(c) n/a(c) - --------------------------------------------- ====== ====== ====== ====== ====== ====== ====== (a) Includes (1) minority interest in net income of majority-owned subsidiaries having fixed charges and (2) income from less-than-50-percent-owned equity investments adjusted to reflect only dividends received. (b) Includes proportionate share of interest and debt expense of 50-percent-owned equity investments. (c) Not computed due to less than one-to-one coverage. Earnings were inadequate to cover fixed charges by $298 million in 1994 and $224 in 1993.