EXHIBIT 12 VASTAR RESOURCES, INC. STATEMENT SETTING FORTH DETAIL OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Unaudited) For the Year Ended December 31, ------------- 1999 1998 ------ ------ (Millions of dollars, except per share amounts) Income from continuing operations before income taxes, minority interest and cumulative effect of change in accounting principle(1).................................................... $185.1 $ 51.2 Fixed Charges: Interest expense charged to income, and portion of rentals representative of interest(2)................................. 81.9 63.5 Capitalized Interest........................................... 0.7 0.0 ------ ------ Total fixed charges.......................................... 82.6 63.5 ------ ------ Earnings (1)+(2)................................................. $267.7 $114.7 ====== ====== Ratio of earnings to fixed charges............................... 3.2 1.8 ====== ====== The Company has no issuances of preferred stock.