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Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Operating revenues | $ 34,034 | $ 34,662 | $ 67,508 | $ 69,829
Costs and expenses: |  |  |  |
Cost of sales | 31,523 | 31,621 | 62,208 | 64,656
Operating expenses: |  |  |  |
Refining | 906 | 868 | 1,782 | 1,832
Retail | 57 | 170 | 226 | 336
Ethanol | 102 | 85 | 179 | 172
General and administrative expenses | 233 | 171 | 409 | 335
Depreciation and amortization expense | 405 | 386 | 835 | 770
Asset impairment losses | 0 | 0 | 0 | 611
Total costs and expenses | 33,226 | 33,301 | 65,639 | 68,712
Operating income | 808 | 1,361 | 1,869 | 1,117
Other income (expense), net | 11 | (5) | 25 | 1
Interest and debt expense, net of capitalized interest | (78) | (74) | (161) | (173)
Income before income tax expense | 741 | 1,282 | 1,733 | 945
Income tax expense | 276 | 452 | 616 | 547
Net income | 465 | 830 | 1,117 | 398
Less: Net loss attributable to noncontrolling interests | (1) | (1) | (3) | (1)
Net income attributable to Valero Energy Corporation stockholders | $ 466 | $ 831 | $ 1,120 | $ 399
Earnings per common share | $ 0.86 | $ 1.50 | $ 2.04 | $ 0.72
Weighted-average common shares outstanding (in millions) | 543 | 550 | 546 | 550
Earnings per common share – assuming dilution | $ 0.85 | $ 1.50 | $ 2.03 | $ 0.72
Weighted-average common shares outstanding - assuming dilution (in millions) | 548 | 555 | 552 | 556
Dividends per common share | $ 0.20 | $ 0.15 | $ 0.40 | $ 0.30

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