EXHIBIT 12 NEW YORK STATE ELECTRIC & GAS CORPORATION AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Calendar Year 1997 1996 1995 1994 1993 (Thousands of Dollars) Net Income (Loss) . . . . . $184,553 $178,241 $196,690 $187,645 $166,028 Add: Federal income tax - current. . . . . . . . . 115,334 84,861 71,144 75,892 36,024 Federal income tax - deferred . . . . . . . . 2,379 23,082 44,720 26,569 49,726 -------- -------- -------- -------- -------- Pre-tax income (loss) . 302,266 286,184 312,554 290,106 251,778 Fixed charges . . . . . . . 126,779 127,713 136,703 145,494 153,696 -------- -------- -------- -------- -------- Earnings, as defined. . . . $429,045 $413,897 $449,257 $435,600 $405,474 ======== ======== ======== ======== ======== Fixed Charges: Interest on long-term debt . . . . . . . . . . $104,122 $108,431 $115,687 $126,083 $134,331 Other interest . . . . . . 13,192 9,752 8,744 6,628 3,878 Amortization of premium and expense on debt. . . 6,502 6,507 6,488 7,014 7,242 Interest portion of rental charges . . . . . 2,963 3,023 5,784 5,769 8,245 -------- -------- -------- -------- ------- Total fixed charges, as defined. . . . . . . . $126,779 $127,713 $136,703 $145,494 $153,696 ======== ======== ======== ======== ======== Ratio of Earnings to Fixed Charges . . . . . . 3.38 3.24 3.29 2.99 2.64 ======== ======== ======== ======== ========