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Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Consolidated Statements of Income |  |
Operating revenues (a) | $ 33,474 | $ 35,167
Costs and expenses: |  |
Cost of sales | 30,685 | 33,035
Operating expenses: |  |
Refining | 876 | 964
Retail | 169 | 166
Ethanol | 77 | 87
General and administrative expenses | 176 | 164
Depreciation and amortization expense | 430 | 384
Asset impairment losses | 0 | 611
Total costs and expenses | 32,413 | 35,411
Operating income (loss) | 1,061 | (244)
Other income, net | 14 | 6
Interest and debt expense, net of capitalized interest | (83) | (99)
Income (loss) before income tax expense | 992 | (337)
Income tax expense | 340 | 95
Net income (loss) | 652 | (432)
Less: Net loss attributable to noncontrolling interests | (2) | 0
Net income (loss) attributable to Valero Energy Corporation stockholders | 654 | (432)
Earnings per common share | $ 1.18 | $ (0.78)
Weighted-average common shares outstanding (in millions) | 550 | 551
Earnings per common share – assuming dilution | $ 1.18 | $ (0.78)
Weighted-average common shares outstanding - assuming dilution (in millions) | 556 | 551
Dividends per common share | $ 0.20 | $ 0.15
Supplemental Information |  |
(a) Includes excise taxes on sales by our U.S. retail system | $ 236 | $ 234

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