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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Revenues and other income: |  |  |
Natural gas, NGLs and oil sales | $ 1,715,676 | $ 1,351,694 | $ 1,173,266
Derivative fair value (loss) income | (61,825) | 41,437 | 40,087
Gain on the sale of assets | 92,291 | 49,132 | 2,259
Brokered natural gas, marketing and other | 116,577 | 15,441 | 15,030
Total revenues and other income | 1,862,719 | 1,457,704 | 1,230,642
Costs and expenses: |  |  |
Direct operating | 128,091 | 115,905 | 112,972
Transportation, gathering and compression | 256,242 | 192,445 | 120,755
Production and ad valorem taxes | 45,240 | 67,120 | 27,666
Brokered natural gas and marketing | 131,786 | 20,434 | 11,986
Exploration | 64,409 | 69,807 | 81,367
Abandonment and impairment of unproved properties | 51,918 | 125,278 | 79,703
General and administrative | 291,171 | 173,813 | 151,191
Deferred compensation plan | 55,296 | 7,203 | 43,209
Interest expense | 176,557 | 168,798 | 125,052
Loss on early extinguishment of debt | 12,280 | 11,063 | 18,576
Depletion, depreciation and amortization | 492,397 | 445,228 | 341,221
Impairment of proved properties and other assets | 7,753 | 35,554 | 38,681
Total costs and expenses | 1,713,140 | 1,432,648 | 1,152,379
Income from continuing operations before income taxes | 149,579 | 25,056 | 78,263
Income tax expense (benefit) |  |  |
Current | (143) | (1,778) | 637
Deferred | 34,000 | 13,832 | 34,920
Total income tax expense | 33,857 | 12,054 | 35,557
Income from continuing operations | 115,722 | 13,002 | 42,706
Discontinued operations, net of taxes |  |  | 15,320
Net income | $ 115,722 | $ 13,002 | $ 58,026
Net income per common share: |  |  |
Basic - income from continuing operations | $ 0.71 | $ 0.08 | $ 0.26
- discontinued operations |  |  | $ 0.10
- net income | $ 0.71 | $ 0.08 | $ 0.36
Diluted - income from continuing operations | $ 0.70 | $ 0.08 | $ 0.26
- discontinued operations |  |  | $ 0.10
- net income | $ 0.70 | $ 0.08 | $ 0.36
Weighted average common shares outstanding: |  |  |
Basic | 160,438 | 159,431 | 158,030
Diluted | 161,407 | 160,307 | 159,441

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