EXHIBIT 12 LYONDELL CHEMICAL COMPANY STATEMENT SETTING FORTH DETAIL FOR COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Millions of dollars) TWELVE TWELVE NINE MONTHS NINE MONTHS MONTHS TWELVE MONTHS ENDED ENDED ENDED MONTHS ENDED ENDED SEPTEMBER 30, SEPTEMBER 30, DECEMBER 31, DECEMBER 31, DECEMBER 31, 2001 2000 2000 1999 1998 ------------- ------------- ------------ ------------- ------------ Income from continuing operations before income taxes A $(147) $ 759 $ 693 $(104) $ 89 FIXED CHARGES: Interest expense, gross 374 486 627 717 385 Portion of rentals representative of interest 35 35 46 53 35 ----- ------ ------ ----- ---- Total fixed charges before capitalized interest B 408 520 673 770 420 Capitalized interest - - - - - ----- ------ ------ ----- ---- Total fixed charges including capitalized interest C 408 520 673 770 420 EARNINGS (A+B) D 261 1,279 1,366 666 509 Ratio of Earnings to Fixed Charges (D/C) 0.6x 2.5x 2.0x 0.9x 1.2x ===== ====== ====== ===== ====