EXHIBIT 12 OCCIDENTAL PETROLEUM CORPORATION AND SUBSIDIARIES COMPUTATION OF TOTAL ENTERPRISE RATIOS OF EARNINGS TO FIXED CHARGES FOR THE FIVE YEARS ENDED DECEMBER 31, 2001 (Amounts in millions, except ratios) 2001 2000 1999 1998 1997 ========================================================== ========== ========== ========== ========== ========== Income from continuing operations(a) $ 1,418 $ 1,785 $ 699 $ 400 $ 245 ---------- ---------- ---------- ---------- ---------- Add: Provision for taxes on income (other than foreign oil and gas taxes) 172 871 306 204 47 Interest and debt expense(b) 411 540 515 576 446 Portion of lease rentals representative of the interest factor 7 6 31 36 39 ---------- ---------- ---------- ---------- ---------- 590 1,417 852 816 532 ---------- ---------- ---------- ---------- ---------- Earnings before fixed charges $ 2,008 $ 3,202 $ 1,551 $ 1,216 $ 777 ========== ========== ========== ========== ========== Fixed charges Interest and debt expense including capitalized interest(b) $ 417 $ 543 $ 522 $ 594 $ 462 Portion of lease rentals representative of the interest factor 7 6 31 36 39 ---------- ---------- ---------- ---------- ---------- Total fixed charges $ 424 $ 549 $ 553 $ 630 $ 501 ========== ========== ========== ========== ========== Ratio of earnings to fixed charges 4.74 5.83 2.80 1.93 1.55 ========================================================== ========== ========== ========== ========== ========== (a) Includes: 1) minority interest in net income of majority-owned subsidiaries and partnerships 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.