EXHIBIT 12 CHEVRON CORPORATION - TOTAL ENTERPRISE BASIS COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in Millions) THREE MONTHS ENDED YEAR ENDED DECEMBER 31, MARCH 31, ------------------------------------------ 1995 1994 1993 1992 1991 1990 ------------- ------ ------- ------- ------- ------- Net Income before Cumulative Effect of Changes in Accounting Principles (1) $459 $1,693 $1,265 $2,210 $1,293 $2,157 Income Tax Expense 336 1,322 1,389 1,508 1,302 2,387 Distributions Greater Than (Less Than) Equity in Earnings of Less Than 50% Owned Affiliates 3 (3) 6 (9) (20) (6) Minority Interest - 3 (2) 2 2 6 Previously Capitalized Interest Charged to Earnings During Period 8 32 20 18 17 15 Interest and Debt Expense 149 453 390 490 585 707 Interest Portion of Rentals (2) 37 156 169 152 153 163 ------- ------- ------- ------- ------- ------- EARNINGS BEFORE PROVISION FOR TAXES AND FIXED CHARGES $992 $3,656 $3,237 $4,371 $3,332 $5,429 ======= ======= ======= ======= ======= ======= Interest and Debt Expense $149 $ 453 $ 390 $ 490 $ 585 $ 707 Interest Portion of Rentals(2) 37 156 169 152 153 163 Capitalized Interest 32 80 60 46 30 24 ------- ------- ------- ------- ------- ------- TOTAL FIXED CHARGES $218 $ 689 $ 619 $ 688 $ 768 $ 894 ======= ======= ======= ======= ======= ======= - ------------------------------------------------------------------------------- RATIO OF EARNINGS TO FIXED CHARGES 4.55 5.31 5.23 6.35 4.34 6.07 - ------------------------------------------------------------------------------- (1) The information for 1992 and subsequent periods reflects the company's adoption of the Financial Accounting Standards Board Statements No. 106, "Employers' Accounting for Postretirement Benefits Other than Pensions" and No. 109, "Accounting for Income Taxes," effective January 1, 1992. (2) Calculated as one-third of rentals.