1 EXHIBIT 12-1 MICHIGAN CONSOLIDATED GAS COMPANY AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES TWELVE MONTHS ENDED ------------------------------------------------------------------ DECEMBER 31 (THOUSANDS OF DOLLARS) ------------------------------------------------------------------ 1994 1993 1992 1991 1990 ---- ---- ---- ---- ---- EARNINGS AS DEFINED(1) Net Income . . . . . . . . . . . . . . . . . . $ 59,868 $ 62,376 $ 50,821 $37,302 $31,709 Federal and other income taxes . . . . . . . . 29,839 30,939 25,794 19,849 18,947 Fixed charges . . . . . . . . . . . . . . . . . 39,663 36,231 38,489 37,283 37,016 ------- -------- -------- ------- ------- Earnings as defined . . . . . . . . . . . . . $129,370 $129,546 $115,104 $94,434 $87,672 FIXED CHARGES AS DEFINED(1) Interest on long-term debt . . . . . . . . . . $27,948 $25,594 $27,927 $23,224 $23,121 Interest on other borrowed funds . . . . . . . 9,093 7,961 8,044 11,756 11,191 Amortization of debt discounts, premium and expense . . . . . . . . . . . . . . . . . 950 1,057 763 607 618 Interest implicit in rentals(2) . . . . . . . . 1,672 1,619 1,755 1,696 2,086 ----- ------ -------- -------- ------- Fixed charges as defined . . . . . . . . . . . $39,663 $36,231 $38,489 $37,283 $37,016 Ratio of Earnings to Fixed Charges . . . . . 3.26 3.58 2.99 2.53 2.37 - --------------- Notes: (1) Earnings and fixed charges are defined and computed in accordance with instructions for Item 3 of Form S-3. (2) This amount is estimated to be a reasonable approximation of the interest portion of rentals. MichCon is a guarantor of certain other debt. Fixed charges related to such debt are deemed to be immaterial and therefore have been excluded from the above ratios.