EXHIBIT 12 PENNZOIL COMPANY AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For the nine months ended September 30, ---------------------------------- 1994 1993 ------------- ------------- (Dollar amounts expressed in thousands) Income (loss) from continuing operations $ (272,254) $ 67,800 Income tax provision (benefit) Federal and foreign (212,719) 47,421 State 3,723 5,964 ------------- ------------- Total income tax provision (benefit) (208,996) 53,385 Interest charges 441,525 156,054 ------------- ------------- Income (loss) before income tax provision (benefit) and interest charges $ (39,726) $ 277,239 ============= ============= Fixed charges $ 448,434 $ 163,500 ============= ============= Ratio of earnings to fixed charges -- 1.70 ============= ============= Amount by which fixed charges exceed earnings $ 488,159 $ -- ============= ============= DETAIL OF INTEREST AND FIXED CHARGES For the nine months ended September 30, ---------------------------------- 1994 1993 ------------- ------------- (Expressed in thousands) Interest charges per Consolidated Statement of Income which includes amortization of debt discount, expense and premium $ 430,688 $ 148,838 Add: portion of rental expense representative of interest factor <F1> 17,746 14,662 ------------- ------------- Total fixed charges $ 448,434 $ 163,500 Less: interest capitalized per Consolidated Statement of Income 6,909 7,446 ------------- ------------- Total interest charges $ 441,525 $ 156,054 ============= ============= <FN> <F1> Interest factor based on management's estimates and approximates one-third of rental expense.