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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Revenues |  |  |  |  |  |
Oil and natural gas | $ 1,759,282 |  | $ 1,226,794 |  | $ 774,763 |
Drilling and services | 116,633 |  | 103,298 |  | 28,543 |
Midstream and marketing | 40,486 |  | 66,690 |  | 100,118 |
Century Plant construction | 796,323 |  | 0 |  | 0 |
Other | 18,241 |  | 18,431 |  | 28,312 |
Total revenues | 2,730,965 |  | 1,415,213 |  | 931,736 |
Expenses |  |  |  |  |  |
Production | 477,154 |  | 322,877 |  | 237,863 |
Production taxes | 47,210 |  | 46,069 |  | 29,170 |
Drilling and services | 68,227 |  | 65,654 |  | 22,368 |
Midstream and marketing | 39,669 |  | 66,007 |  | 90,149 |
Century Plant construction costs | 796,323 |  | 0 |  | 0 |
Depreciation and depletion - oil and natural gas | 568,029 |  | 317,246 |  | 265,914 |
Depreciation and amortization - other | 60,805 |  | 53,630 |  | 50,776 |
Accretion of asset retirement obligations | 28,996 |  | 9,368 |  | 9,421 |
Impairment | 316,004 |  | 2,825 |  | 0 |
General and administrative | 241,682 |  | 148,643 |  | 179,565 |
(Gain) loss on derivative contracts | (241,419) |  | (44,075) |  | 50,872 |
Loss (gain) on sale of assets | 3,089 |  | (2,044) |  | 2,424 |
Total expenses | 2,405,769 |  | 986,200 |  | 938,522 |
Income (loss) from operations | 325,196 | [1] | 429,013 | [1] | (6,786) | [1]
Other income (expense) |  |  |  |  |  |
Interest expense | (303,349) |  | (237,332) |  | (247,442) |
Bargain purchase gain | 122,696 |  | 0 |  | 0 |
Loss on extinguishment of debt | (3,075) |  | (38,232) |  | 0 |
Other income, net | 4,741 |  | 3,122 |  | 2,558 |
Total other expense | (178,987) |  | (272,442) |  | (244,884) |
Income (loss) before income taxes | 146,209 |  | 156,571 |  | (251,670) |
Income tax benefit | (100,362) |  | (5,817) |  | (446,680) |
Net income | 246,571 |  | 162,388 |  | 195,010 |
Less: net income attributable to noncontrolling interest | 105,000 |  | 54,323 |  | 4,445 |
Net income attributable to SandRidge Energy, Inc. | 141,571 |  | 108,065 |  | 190,565 |
Preferred stock dividends | 55,525 |  | 55,583 |  | 37,442 |
Income available to SandRidge Energy, Inc. common stockholders | $ 86,046 |  | $ 52,482 |  | $ 153,123 |
Earnings per share |  |  |  |  |  |
Basic (in dollars) | $ 0.19 |  | $ 0.13 |  | $ 0.52 |
Diluted (in dollars) | $ 0.19 |  | $ 0.13 |  | $ 0.52 |
Weighted average number of common shares outstanding |  |  |  |  |  |
Basic (in shares) | 453,595 |  | 398,851 |  | 291,869 |
Diluted (in shares) | 456,015 |  | 406,645 |  | 315,349 |
[1] | Exploration and production segment income from operations includes unrealized (gains) losses of $(209.7) million, $(94.8) million and $275.2 million on commodity derivative contracts for the years ended December 31, 2012, 2011 and 2010, respectively, and impairment of the Company’s goodwill of $235.4 million for the year ended December 31, 2012. For the year ended December 31, 2012, the loss from operations for the midstream services segment includes a $59.7 million impairment of the Company’s gas treating plants in west Texas and the loss from operations in the All Other column includes a $19.6 million impairment of the Company’s CO2 compression facilities.

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