EXHIBIT 12 ANADARKO PETROLEUM CORPORATION CONSOLIDATED STATEMENT OF COMPUTATION OF RATIOS OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS Three Months Ended March 31, 1998 and Five Years Ended December 31, 1997 Three Months Ended March 31 Years Ended December 31 thousands 1998 1997 1996 1995 1994 1993 Gross Income $23,335 $205,318 $196,763 $65,624 $90,794 $106,824 Rentals 2,822 8,266 4,234 2,457 2,814 3,069 Earnings 26,157 213,584 200,997 68,081 93,608 109,893 Gross Interest Expense 18,238 62,095 55,986 52,557 41,635 38,000 Rentals 2,822 8,266 4,234 2,457 2,814 3,069 Fixed Charges $21,060 $70,361 $60,220 $55,014 $44,449 $41,069 Ratio of Earnings to Fixed Charges 1.24 3.04 3.34 1.24 2.11 2.68 The ratios of earnings to combined fixed charges and preferred stock dividends were computed by dividing earnings by fixed charges. For this purpose, earnings include income before income taxes, fixed charges and preferred stock dividends. Fixed charges include interest and amortization of debt expenses, and the estimated interest component of rentals. There were no shares of preferred stock outstanding for the periods presented.