Exhibit 12 PHILLIPS PETROLEUM COMPANY AND CONSOLIDATED SUBSIDIARIES TOTAL ENTERPRISE Computation of Ratio of Earnings to Fixed Charges Millions of Dollars ------------------- Three Months Ended March 31 ------------------- 2001 2000 ------------------- (Unaudited) Earnings Available for Fixed Charges Income before income taxes $1,018 542 Distributions less than equity in earnings of fifty-percent-or-less- owned companies (18) 13 Fixed charges, excluding capitalized interest* 113 91 - ----------------------------------------------------------------- $1,113 646 ================================================================= Fixed Charges Interest and expense on indebtedness, excluding capitalized interest $ 84 61 Capitalized interest 56 16 Preferred dividend requirements of capital trusts 13 13 Interest portion of rental expense 11 12 - ----------------------------------------------------------------- $ 164 102 ================================================================= Ratio of Earnings to Fixed Charges 6.8 6.3 - ----------------------------------------------------------------- *Includes amortization of capitalized interest totaling approximately $5 million in both 2001 and 2000 periods. Earnings available for fixed charges include, if any, the company's equity in losses of companies owned fifty percent or less that have debt for which the company is contingently liable. Fixed charges include the company's proportionate share, if any, of interest relating to the contingent debt. In 1990, the company guaranteed a $400 million bank loan for the Long-Term Stock Savings Plan (LTSSP), an employee benefit plan. Consolidated interest expense includes interest attributable to the LTSSP borrowing of $1 million in the first three months of 2001. The amount in the first three months of 2000 was minimal.