<table> EXHIBIT 12.1 SEMPRA ENERGY COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS (Dollars in millions) <caption> Nine months ended September 30, 1997 1998 1999 2000 2001 2002 -------- -------- -------- -------- -------- --------- <s> <c> <c> <c> <c> <c> <c> Fixed Charges and Preferred Stock Dividends: Interest $ 209 $ 210 $ 233 $ 308 $ 358 $ 261 Interest portion of annual rentals 25 20 10 8 6 3 Preferred dividends of subsidiaries (1) 31 18 16 18 16 12 -------- -------- -------- -------- -------- --------- Combined Fixed Charges and Preferred Stock Dividends for Purpose of Ratio $ 265 $ 248 $ 259 $ 334 $ 380 $ 276 ======== ======== ======== ======== ======== ========= Earnings: Pretax income from continuing operations $ 733 $ 432 $ 573 $ 699 $ 731 $ 588 Total Fixed Charges (from above) 265 248 259 334 380 276 Less: Interest capitalized 2 1 1 3 11 18 Equity income (loss) of unconsolidated subsidiaries and joint ventures - - - 62 12 (60) -------- -------- -------- -------- -------- --------- Total Earnings for Purpose of Ratio $ 996 $ 679 $ 831 $ 968 $1,088 $ 906 ======== ======== ======== ======== ======== ========= Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends 3.76 2.74 3.21 2.90 2.86 3.28 ======== ======== ======== ======== ======== ========= (1) In computing this ratio, "Preferred dividends of subsidiaries" represents the before-tax earnings necessary to pay such dividends, computed at the effective tax rates for the applicable periods. </table>