EXHIBIT 12 TEXAS UTILITIES COMPANY COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES, AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS TWELVE MONTHS YEAR ENDED DECEMBER 31, ENDED ----------------------- SEPTEMBER 30, 1998 1997 1996 -------- ---------- ----------- THOUSAND OF DOLLARS, EXCEPT RATIOS EARNINGS: Net income (loss) $ 598,540 $ 660,454 $ 753,606 Add: Total federal income taxes (benefit) 393,357 376,898 375,232 Fixed charges (see detail below) 1,215,659 854,822 851,482 Preferred dividends of subsidiaries 19,099 27,983 53,358 --------- --------- --------- Total earnings $2,226,655 $1,920,157 $2,033,678 ========= ========= ========= FIXED CHARGES: Interest expense $1,101,398 $ 762,937 $ 797,893 Rentals representative of the interest factor 41,828 22,184 20,588 Distributions on preferred trust securities of subsidiaries* 72,433 69,701 33,001 --------- --------- --------- Fixed charges deducted from earnings 1,215,659 854,822 851,482 Preferred dividends of subsidiaries (pretax)** 31,651 43,952 79,926 --------- --------- --------- Total fixed charges 1,247,310 898,774 931,408 --------- --------- --------- Preferred dividends of registrant 0 0 0 --------- --------- --------- Fixed charges and preferred dividends $1,247,310 $ 898,774 $ 931,408 ========= ========= ========= RATIO OF EARNINGS TO FIXED CHARGES (a) 1.79 2.14 2.18 ==== ==== ==== RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS (a) 1.79 2.14 2.18 ==== ==== ==== YEAR ENDED DECEMBER 31, ------------------------------------ 1995 1994 1993 ----------- ---------- ---------- THOUSAND OF DOLLARS, EXCEPT RATIOS EARNINGS: Net income (loss) $(138,645) $ 542,799 $ 368,660 Add: Total federal income taxes (benefit) (60,035) 326,638 209,544 Fixed charges (see detail below) 732,313 752,892 782,439 Preferred dividends of subsidiaries 84,914 101,883 115,232 --------- --------- --------- Total earnings $ 618,547 $1,724,212 $1,475,875 ========= ========= ========= FIXED CHARGES: Interest expense $ 706,183 $ 726,875 $ 752,802 Rentals representative of the interest factor 24,329 26,017 29,637 Distributions on preferred trust securities of subsidiaries* 1,801 -- -- --------- --------- --------- Fixed charges deducted from earnings 732,313 752,892 782,439 Preferred dividends of subsidiaries (pretax)** 121,683 163,193 180,729 --------- --------- --------- Total fixed charges 853,996 916,085 963,168 --------- --------- --------- Preferred dividends of registrant 0 0 0 --------- --------- --------- Fixed charges and preferred dividends $ 853,996 $ 916,085 $ 963,168 ========= ========= ========= RATIO OF EARNINGS TO FIXED CHARGES (a) 0.72 1.88 1.53 ==== ==== ==== RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS (a) 0.72 1.88 1.53 ==== ==== ==== * Distributions on preferred trust securities are deductible for tax purposes. ** Preferred dividend requirements of subsidiaries multiplied by the ratio of pre-tax income to net income. (a) For the year ended December 31, 1995, fixed charges and combined fixed charges and preferred dividends exceeded earnings by $235 million.