EXHIBIT 12 NORTH SHORE GAS COMPANY AND SUBSIDIARY COMPANIES STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in Thousands) Fiscal years ended September 30, 1994 1993 1992 1991 1990 - ----------------------------------------------------------------------------------------------------------------- Net Income Before Preferred Stock Dividends $10,378 $ 8,973 $12,527 $ 6,603 $ 8,336 Add - Income Taxes 5,087 4,788 7,257 3,604 4,936 Fixed Charges (see below) 6,648 7,198 6,175 6,283 5,085 - ----------------------------------------------------------------------------------------------------------------- Earnings $22,113 $20,959 $25,959 $16,490 $18,357 Fixed Charges: Interest on Long-Term Debt $ 6,205 $ 6,606 $ 5,435 $ 5,482 $ 3,807 Interest on Interim Loans 136 291 197 232 460 Other Interest 186 189 478 506 789 Amortization of Debt Discount and Expense 121 112 65 63 29 - ----------------------------------------------------------------------------------------------------------------- Total Fixed Charges $ 6,648 $ 7,198 $ 6,175 $ 6,283 $ 5,085 - ----------------------------------------------------------------------------------------------------------------- Ratio of Earnings to Fixed Charges 3.33 2.91 4.20 2.62 3.61 - -----------------------------------------------------------------------------------------------------------------