1 EXHIBIT 12 HOUSTON INDUSTRIES INCORPORATED AND SUBSIDIARIES COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES (THOUSANDS OF DOLLARS) Six Twelve Months Ended Months Ended June 30, June 30, 1998 1998 ------------ ------------ Fixed Charges as Defined: (1) Interest on Long-Term Debt............................... $ 209,355 $ 407,106 (2) Other Interest........................................... 47,393 89,412 (3) Capitalized Interest..................................... 4,746 9,034 (4) Distribution on Trust Securities......................... 14,712 29,269 (5) Interest Component of Rentals Charged to Operating Expense........................................ 5,365 9,952 --------- ---------- (6) Total Fixed Charges...................................... $ 281,571 $ 544,773 ========= ========= Earnings as Defined: (7) Income from Continuing Operations........................ $ 13,065 $ 253,092 (8) Income Taxes for Continuing Operations .................. 48,462 183,796 (9) Fixed Charges (line 6)................................... 281,571 544,773 (10) Capitalized Interest.................................... (4,746) (9,034) -------- ---------- (11) Income from Continuing Operations Before Income Taxes and Fixed Charges................... $ 338,352 $ 972,627 ========= ========== Ratio of Earnings to Fixed Charges (line 11 divided by line 6).................................................. 1.20 1.79 Preferred Dividends Requirements: (12) Preferred Stock Dividends................................ $ 195 $ 357 (13) Less Tax Deduction for Preferred Dividends............... 27 54 --------- --------- (14) Total.................................................... $ 168 $ 303 ========= ========= (15) Ratio of Pre-Tax Income from continuing operations to Net Income (line 7 plus line 8 divided by line 7)..... 4.71 1.73 (16) Line 14 times line 15.................................... $ 791 $ 524 (17) Add Back Tax Deduction (line 13)......................... 27 54 --------- --------- (18) Preferred Dividends Factor............................... $ 818 $ 578 ========= ========= (19) Total Fixed Charges (line 6)............................. $ 281,571 $ 544,773 (20) Preferred Dividends Factor (line 18)..................... 818 578 --------- --------- (21) Total.................................................... $ 282,389 $ 545,351 ========= ========= Ratios of Earnings to Fixed Charges and Preferred Dividends (line 11 divided by line 21)...................... 1.20 1.78 ========= ========= 2 EXHIBIT 12 NORAM ENERGY CORP. AND SUBSIDIARIES Exhibit 12 COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES (THOUSANDS OF DOLLARS) Six Twelve Months Ended Months Ended June 30, June 30, 1998 1998 ------------ ------------ Income from Continuing Operations............................. $ 58,456 $ 56,066 Income Taxes for Continuing Operations........................ 54,863 65,233 Non-Utility Interest Capitalized.............................. 0 0 ----------- ----------- Income from Continuing Operations Before Income Taxes................................................ 113,319 121,299 Fixed Charges: Interest.................................................... 52,379 110,534 Distribution on Trust Securities............................ 427 1,609 Interest Component of Rentals Charged to Operating Expenses.................................................. 4,630 9,455 ----------- ----------- Total Fixed Charges.................................... 57,436 121,598 ----------- ----------- Income from Continuing Operations Before Income Taxes and Fixed Charges..................................... $ 170,755 $ 242,897 =========== =========== Ratio of Earnings to Fixed Charges............................ 2.97 2.00 =========== ===========