(In millions, except per share amounts) 1999 1998 1997 Revenues Natural gas and other products Electricity Transportation Other $19,536 15,238 588 $13,276 13,939 Total revenues 4,750 40,112 627 3,418 1,309 31,260 20,273 $13,211 5,101 652 Costs and Expenses Cost of gas, electricity and other products 34,761 26,381 17,311 Operating expenses 2,996 2,352 1,406 Oil and gas exploration expenses 49 121 102 Depreciation, depletion and amortization 870 827 600 Taxes, other than income taxes Impairment of long-lived assets Contract restructuring charge Total costs and expenses Operating Income 193 201 164 441 39,310 675 29,882 20,258 802 1,378 15 Other Income and Deductions Equity in earnings of unconsolidated equity affiliates Gains on sales of assets and investments Interest income Other income, net Income Before Interest, Minority Interests and Income Taxes 309 97 216 541 56 186 162 70 181 (37) 78 1,995 1,582 565 Interest and related charges, net 656 Dividends on company-obligated preferred securities of subsidiaries 76 Minority interests 135 Income tax expense (benefit) 104 Net income before cumulative effect of accounting changes Cumulative effect of accounting changes, net of tax 1,024 8 550 401 77 69 77 80 175 (90) 703 105 (131) Net Income 893 703 105