EXHIBIT 12 HOUSTON LIGHTING & POWER COMPANY COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES AND RATIOS OF EARNINGS TO FIXED CHARGES AND PREFERRED DIVIDENDS (THOUSANDS OF DOLLARS) Nine Twelve Months Ended Months Ended September 30, 1994 September 30, 1994 ------------------ ------------------ Fixed Charges as Defined: (1) Interest on Long-Term Debt ......... $184,964 $ 249,203 (2) Other Interest ..................... 5,938 6,709 (3) Amortization of Premium/Discount-net 6,363 8,448 (4) Interest Component of Rentals Charged to Operating Expense ....... 2,947 4,021 -------- ---------- (5) Total Fixed Charges ............ $200,212 $ 268,381 ======== ========== Earnings as Defined: (6) Net Income ......................... $460,237 $ 509,355 (7) Cumulative Effect of Change in Accounting for Postemployment Benefits ........................ 8,200 8,200 -------- ---------- (8) Income Before Cumulative Effect of Change in Accounting for Postemployment Benefits ......... 468,437 517,555 -------- ---------- Federal Income Taxes: (9) Current ............................ 171,647 178,252 (10) Deferred (Net) ..................... 71,673 81,651 (11) Cumulative Effect of Change in Accounting for Postemployment Benefits ........................ 4,415 4,415 -------- ---------- (12) Total Federal Income Taxes Before Cumulative Effect of Change in Accounting for Postemployment Benefits ......... 247,735 264,318 -------- ---------- (13) Fixed Charges (line 5) ............. 200,212 268,381 -------- ---------- (14) Earnings Before Income Taxes and Fixed Charges (line 8 plus line 12 plus line 13) ........... $916,384 $1,050,254 ======== ========== Ratio of Earnings to Fixed Charges (line 14 divided by line 5) ............ 4.58 3.91 Preferred Dividends Requirements: (15) Preferred Dividends ................ $ 24,981 $ 33,282 (16) Less Tax Deduction for Preferred Dividends ....................... 41 54 -------- ---------- (17) Total ......................... 24,940 33,228 (18) Ratio of Pre-Tax Income to Net Income (line 8 plus line 12 divided by line 8) .............. 1.53 1.51 -------- ---------- (19) Line 17 times line 18 .............. 38,158 50,174 (20) Add Tax Deduction for Preferred Dividends (line 16) ............. 41 54 -------- ---------- (21) Preferred Dividends Factor ......... $ 38,199 $ 50,228 ======== ========== (22) Fixed Charges (line 5) ............. $200,212 $ 268,381 (23) Preferred Dividends Factor (line 21) ....................... 38,199 50,228 -------- ---------- (24) Total ......................... $238,411 $ 318,609 ======== ========== Ratio of Earnings to Fixed Charges and Preferred Dividends (line 14 divided by line 24) ............ 3.84 3.30