EXHIBIT 12 PENNZOIL COMPANY AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For the six months ended June 30, ---------------------------------- 1996 1995 ------------- ------------- (Dollar amounts expressed in thousands) Net Income (Loss) $ 40,312 $ (2,047) Income tax provision (benefit) Federal and foreign 17,616 (3,588) State 2,276 1,059 ------------- ------------- Total income tax provision (benefit) 19,892 (2,529) Interest charges 106,625 108,929 ------------- ------------- Income before income tax provision (benefit) and interest charges $ 166,829 $ 104,353 ============= ============= Fixed charges $ 110,407 $ 111,704 ============= ============= Ratio of earnings to fixed charges 1.51 .93 ============= ============= Amount by which fixed charges exceed earnings $ - $ 7,351 ============= ============= DETAIL OF INTEREST AND FIXED CHARGES For the six months ended June 30, ---------------------------------- 1996 1995 ------------- ------------- (Expressed in thousands) Interest charges per Consolidated Statement of Income which includes amortization of debt discount, expense and premium $ 98,149 $ 99,021 Add: portion of rental expense representative of interest factor <F1> 12,258 12,683 ------------- ------------- Total fixed charges $ 110,407 $ 111,704 Less: interest capitalized per Consolidated Statement of Income 3,782 2,775 ------------- ------------- Total interest charges $ 106,625 $ 108,929 ============= ============= <FN> <F1> Interest factor based on management's estimates and approximates one-third of rental expense.