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CONSOLIDATED STATEMENTS OF EARNINGS (CAD) In Millions, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Revenues |  |  |
Commodity sales | 19,101 | 20,611 | 15,863
Gas distribution sales | 1,910 | 1,906 | 1,814
Transportation and other services | 4,295 | 4,536 | 3,843
Total revenues | 25,306 | 27,053 | 21,520
Expenses |  |  |
Commodity costs | 18,566 | 19,864 | 15,276
Gas distribution costs | 1,220 | 1,281 | 1,249
Operating and administrative | 2,890 | 2,281 | 2,032
Depreciation and amortization | 1,206 | 1,112 | 1,017
Environmental costs, net of recoveries (Note 28) | (88) | (116) | 619
Total expenses | 23,794 | 24,422 | 20,193
Total operating income | 1,512 | 2,631 | 1,327
Income from equity investments (Note 11) | 160 | 210 | 228
Other income (Note 25) | 240 | 117 | 318
Interest expense (Note 16) | (841) | (928) | (865)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest | 1,071 | 2,030 | 1,008
Income taxes (Note 23) | (128) | (526) | (227)
Earnings before extraordinary loss | 943 | 1,504 | 781
Extraordinary loss, net of tax (Note 5) |  | (262) |
Earnings | 943 | 1,242 | 781
(Earnings)/loss attributable to noncontrolling interests and redeemable noncontrolling interests | (228) | (409) | 170
Earnings attributable to Enbridge Inc. | 715 | 833 | 951
Preference share dividends | (105) | (13) | (7)
Earnings attributable to Enbridge Inc. common shareholders | 610 | 820 | 944
Earnings attributable to Enbridge Inc. common shareholders |  |  |
Earnings before extraordinary loss | 610 | 1,082 | 944
Extraordinary loss, net of tax (Note 5) |  | (262) |
Earnings attributable to Enbridge Inc. common shareholders | 610 | 820 | 944
Earnings per common share attributable to Enbridge Inc. common shareholders (Note 19) |  |  |
Earnings before extraordinary loss (in Canadian dollars per share) | 0.79 | 1.44 | 1.27
Extraordinary loss, net of tax (in Canadian dollars per share) |  | (0.35) |
Total earnings per common share (in Canadian dollars per share) | 0.79 | 1.09 | 1.27
Diluted earnings per common share attributable to Enbridge Inc. common shareholders (Note 19) |  |  |
Earnings before extraordinary loss (in Canadian dollars per share) | 0.78 | 1.42 | 1.26
Extraordinary loss, net of tax (in Canadian dollars per share) |  | (0.34) |
Total diluted earnings per common share (in Canadian dollars per share) | 0.78 | 1.08 | 1.26

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