EXHIBIT 12 ANADARKO PETROLEUM CORPORATION CONSOLIDATED STATEMENT OF COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES AND EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS Six Months Ended June 30, 1999 and Five Years Ended December 31, 1998 Six Months Ended June 30 Years Ended December 31 thousands 1999 1998 1997 1996 1995 1994 Gross Income $33,564 $ (7,388) $205,318 $196,763 $65,624 $90,794 Rentals 5,880 12,477 8,266 4,234 2,457 2,814 Earnings 39,444 5,089 213,584 200,997 68,081 93,608 Gross Interest Expense 48,135 82,415 62,095 55,986 52,557 41,635 Rentals 5,880 12,477 8,266 4,234 2,457 2,814 Fixed Charges $54,015 $ 94,892 $ 70,361 $ 60,220 $55,014 $44,449 Preferred Stock Dividends 8,531 10,951 -- -- -- -- Combined Fixed Charges and Preferred Stock Dividends $62,546 $105,843 $ 70,361 $ 60,220 $55,014 $44,449 Ratio of Earnings to Fixed Charges 0.73 0.05 3.04 3.34 1.24 2.11 Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends 0.63 0.05 3.04 3.34 1.24 2.11 For the six months ended June 30, 1999 and the year ended December 31, 1998, Anadarko's earnings did not cover fixed charges by $15 million and $90 million, respectively, and did not cover combined fixed charges and preferred stock dividends by $23 million and $101 million, respectively. The ratios were computed by dividing earnings by either fixed charges or combined fixed charges and preferred stock dividends. For this purpose, earnings include income before income taxes and fixed charges. Fixed charges include interest and amortization of debt expenses and the estimated interest component of rentals.