EXHIBIT 12 INDIANA GAS COMPANY, INC. AND SUBSIDIARY COMPANIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In Thousands, Except Ratios) Twelve Months Fiscal Year Ended September 30 Ended June 30, 1995 1994 1993 1992 1991 1990(1) (Unaudited) Earnings: Net income $31,553 $34,596 $28,534 $25,743 $23,286 $22,257 Adjustments: Income taxes 17,673 17,977 16,030 12,800 11,665 11,085 Fixed charges (see below) 16,494 16,986 17,556 15,642 15,482 12,026 Total adjusted earnings $65,720 $69,559 $62,120 $54,185 $50,433 $45,368 Fixed charges: Total interest expense $15,629 $16,037 $16,640 $14,556 $14,411 $10,955 Interest component of rents 865 949 916 1,086 1,071 1,071 Total fixed charges $16,494 $16,986 $17,556 $15,642 $15,482 $12,026 Ratio of earnings to fixed charges 4.0 4.1 3.5 3.5 3.3 3.8 (1) Includes consolidation of Richmond Gas Corporation and Terre Haute Gas Corporation beginning August 1990.