EXHIBIT 12(b) TEXAS UTILITIES ELECTRIC COMPANY AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES, AND TO FIXED CHARGES AND PREFERRED DIVIDENDS EARNINGS: Net income $ 862,695 $ 452,631 $ 658,192 $ 476,526 $ 821,123 Add: Total federal income taxes 405,499 212,953 342,687 241,740 241,852 Fixed charges (see detail below) 649,295 655,678 688,194 715,609 719,644 ----------- ----------- ----------- ----------- ----------- Total earnings $ 1,917,489 $ 1,321,262 $ 1,689,073 $ 1,433,875 $ 1,782,619 =========== =========== =========== =========== =========== FIXED CHARGES: Interest on mortgage bonds $ 486,791 $ 526,977 $ 567,363 $ 610,999 $ 598,235 Interest on other long-term debt 26,456 44,071 32,183 45,787 54,379 Amortization of debt discount, (premium) and expense 11,067 9,959 8,615 6,493 4,778 Amortization of loss on reacquired debt 22,520 19,547 17,608 12,471 9,301 Other interest charges 48,872 28,994 36,408 10,222 22,123 Preferred trust securities distributions 33,001 1,801 -- -- -- Rentals representative of the interest factor 20,588 24,329 26,017 29,637 30,828 ----------- ----------- ------------ ------------ ----------- Total fixed charges $ 649,295 $ 655,678 $ 688,194 $ 715,609 $ 719,644 =========== =========== ============ ============ =========== Preferred dividends * 68,181 93,371 143,233 168,465 143,778 ----------- ----------- ------------ ------------ ----------- Fixed charges and preferred dividends$ $ 717,476 $ 749,049 $ 831,427 $ 884,074 $ 863,422 =========== =========== ============ ============ =========== RATIO OF EARNINGS TO FIXED CHARGES 2.95 2.02 2.45 2.00 2.48 ---- ---- ---- ---- ---- RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED DIVIDENDS 2.67 1.76 2.03 1.62 2.06 ---- ---- ---- ---- ---- * Preferred dividends represent (1) the portion of preferred dividends deductible for federal income tax purposes, plus (2) the balance of preferred dividend requirements multiplied by the ratio of pre-tax income to net income.