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 ------------------- 2002 2001 ------------------- (Unaudited) Earnings Available for Fixed Charges Income before income taxes $ 45 1,014 Distributions less than equity in earnings of fifty-percent-or-less- owned companies 28 (18) Fixed charges, excluding capitalized interest* 149 113 - ----------------------------------------------------------------- $222 1,109 ================================================================= Fixed Charges Interest and expense on indebtedness, excluding capitalized interest $107 84 Capitalized interest 51 57 Preferred dividend requirements of capital trusts 13 13 Interest portion of rental expense 23 11 - ----------------------------------------------------------------- $194 165 ================================================================= Ratio of Earnings to Fixed Charges 1.1 6.7 - ----------------------------------------------------------------- *Includes amortization of capitalized interest totaling approximately $6 million in 2002 and $5 million in 2001. 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 2002 was minimal.