EXHIBIT 12 ANADARKO PETROLEUM CORPORATION CONSOLIDATED STATEMENT OF COMPUTATION OF RATIOS OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS Six Months Ended June 30, 1998 and Five Years Ended December 31, 1997 Six Months Ended June 30 Years Ended December 31 thousands 1998 1997 1996 1995 1994 1993 Gross Income $43,617 $205,318 $196,763 $65,624 $90,794 $106,824 Rentals 5,425 8,266 4,234 2,457 2,814 3,069 Earnings 49,042 213,584 200,997 68,081 93,608 109,893 Gross Interest Expense 38,406 62,095 55,986 52,557 41,635 38,000 Rentals 5,425 8,266 4,234 2,457 2,814 3,069 Preferred Stock Dividends 2,521 --- --- --- --- --- Fixed Charges $46,352 $70,361 $60,220 $55,014 $44,449 $41,069 Ratio of Earnings to Fixed Charges 1.06 3.04 3.34 1.24 2.11 2.68 The ratios of earnings to fixed charges and preferred stock dividends were computed by dividing earnings by fixed charges. For this purpose, earnings include income before income taxes and fixed charges. Fixed charges include interest and amortization of debt expenses, the estimated interest component of rentals and preferred stock dividends. During the six months ended June 30, 1998 and five years ended December 31, 1997, there were two million shares and no shares of preferred stock outstanding, respectively. A pro forma ratio for prior periods is not presented due to immateriality.