Exhibit 12 KANSAS GAS AND ELECTRIC COMPANY Computations of Ratio of Earnings to Fixed Charges (Thousands of Dollars) 1992 Pro Forma April 1 | January 1 1993 1992 (2) to Dec. 31 | to March 31 (Successor) | (Predecessor) Net Income. . . . . . . . . . . . . $ 108,103 $ 77,981 $ 71,941 | $ 6,040 Taxes on Income . . . . . . . . . . 46,896 20,378 23,551 | (3,173) Net Income Plus Taxes. . . . . 154,999 98,359 95,492 | 2,867 | Fixed Charges: | Interest on Long-Term Debt. . . . 53,908 57,862 42,889 | 14,973 Interest on Other Indebtedness. . 6,075 15,121 11,777 | 3,344 Interest on Corporate-owned | Life Insurance Borrowings . . . 11,865 7,155 5,294 | 1,861 Interest Applicable to Rentals. . 24,967 30,212 22,133 | 8,079 Total Fixed Charges . . . . . 96,815 110,350 82,093 | 28,257 | Earnings (1). . . . . . . . . . . . $251,814 $208,709 $177,585 | $ 31,124 | Ratio of Earnings to Fixed Charges. 2.60 1.89 2.16 | 1.10 Year Ended December 31, (Predecessor) 1991 1990 1989 Net Income. . . . . . . . . . . . . $ 53,602 $ 64,184 $ 47,493 Taxes on Income . . . . . . . . . . 15,955 17,916 12,266 Net Income Plus Taxes. . . . . 69,557 82,100 59,759 Fixed Charges: Interest on Long-Term Debt. . . . 59,668 59,263 65,772 Interest on Other Indebtedness. . 17,838 17,432 18,446 Interest on Corporate-owned Life Insurance Borrowings . . . 7,304 7,134 6,923 Interest Applicable to Rentals. . 32,193 32,119 32,150 Total Fixed Charges . . . . . 117,003 115,948 123,291 Earnings (1). . . . . . . . . . . . $186,560 $198,048 $183,050 Ratio of Earnings to Fixed Charges. 1.59 1.71 1.48 (1) Earnings are deemed to consist of net income to which has been added income taxes (including net deferred investment tax credit) and fixed charges. Fixed charges consist of all interest on indebtedness, amortization of debt discount and expense, and the portion of rental expense which represents an interest factor. (2) The pro forma information for the year ended December 31, 1992 was derived by combining the historical information of the three month period ended March 31, 1992 (Predecessor) and the nine month period ended December 31, 1992 (Successor). No purchase accounting adjustments were made for periods prior to the Merger in determining pro forma amounts because such adjustments would be immaterial. (See Note 1 of Notes to Financial Statements)