SCHEDULE 12.1 SOUTHERN CALIFORNIA GAS COMPANY COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES ACTUAL YEAR ENDED DECEMBER 31, ---------------------------------------------------------- 1989 1990 1991 1992 1993 ---------- ---------- ---------- ---------- ---------- Earnings Before Fixed Charges and Taxes Based on Income: Net Income............................... $ 180,903 $ 177,744 $ 211,792 $ 194,716 $ 193,676 Add: Fixed Charges........................ 108,872 117,026 112,867 116,504 116,890 Income taxes charged to operations... 138,618 156,191 146,442 164,487 134,491 Income taxes on nonoperating income.............................. 1,806 (4,628) 12,841 (572) (5,670) ---------- ---------- ---------- ---------- ---------- Earnings before fixed charges and taxes based on income............. $ 430,199 $ 446,333 $ 483,942 $ 475,135 $ 439,387 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- Fixed Charges: Interest and amortization................ $ 100,015 $ 108,655 $ 105,112 $ 105,509 $ 104,986 Rental expense approximating interest charges included in operating expenses................................ 8,857 8,371 7,755 10,995 11,904 ---------- ---------- ---------- ---------- ---------- Total actual fixed charges............. $ 108,872 $ 117,026 $ 112,867 $ 116,504 $ 116,890 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- Ratio of Earnings to Fixed Charges......... 3.95 3.81 4.29 4.08 3.76 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- S-1 SOUTHERN CALIFORNIA GAS COMPANY COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES ACTUAL EXCLUDING INTEREST RELATED TO SUPPLIER REFUNDS AND REGULATORY ACCOUNTS* YEAR ENDED DECEMBER 31, ---------------------------------------------------------- 1989 1990 1991 1992 1993 ---------- ---------- ---------- ---------- ---------- Earnings Before Fixed Charges and Taxes Based on Income.............................................. $ 430,199 $ 446,333 $ 483,942 $ 475,135 $ 439,387 Adjustment for interest related to supplier refunds and regulatory accounts............................. (12,229) (5,271) (5,760) (3,018) (2,678) ---------- ---------- ---------- ---------- ---------- Earnings before adjusted fixed charges and taxes based on income................................... $ 417,970 $ 441,062 $ 478,182 $ 472,117 $ 436,709 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- Fixed Charges........................................ $ 108,872 $ 117,026 $ 112,867 $ 116,504 $ 116,890 Adjustment for interest related to supplier refunds and regulatory accounts............................. (12,229) (5,271) (5,760) (3,018) (2,678) Adjusted fixed charges............................. $ 96,643 $ 111,755 $ 107,107 $ 113,486 $ 114,212 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- Ratio of Earnings to Fixed Charges Adjusted for Supplier Refunds and Regulatory Accounts............ 4.32 3.95 4.46 4.16 3.82 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- <FN> - ------------------------ *The ratios of earnings to fixed charges are influenced by the accrual of interest expense relating to supplier refunds payable to customers and regulatory accounts. Ratios which exclude interest related to supplier refunds and regulatory accounts are calculated as shown in the preceding computation, but exclude from fixed charges related interest expense during the relevant period to the extent of related interest income. S-2