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Condensed Consolidating Financial Information - Condensed Consolidating Statements of Operations of SandRidge Energy, Inc. and Wholly Owned Subsidiary Guarantors and Non-Guarantors' (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Schedule Of Condensed Consolidating Statement Of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | $ 1,338,098 |  | $ 532,798 |  | $ 478,434 |  | $ 381,635 |  | $ 373,838 |  | $ 363,753 |  | $ 364,774 |  | $ 312,848 |  | $ 2,730,965 |  | $ 1,415,213 |  | $ 931,736 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,431,672 |  | 498,563 |  | 381,974 |
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 241,682 |  | 148,643 |  | 179,565 |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 657,830 |  | 380,244 |  | 326,111 |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 316,004 |  | 2,825 |  | 0 |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 383,069 |  | 326,111 |
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (241,419) |  | (44,075) |  | 50,872 |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,405,769 |  | 986,200 |  | 938,522 |
Income (loss) from operations | (209,690) | [1],[2] | (75,871) | [1],[2] | 762,413 | [1],[2] | (151,656) | [1],[2] | (339,457) | [3] | 696,582 | [3] | 279,716 | [3] | (207,828) | [3] | 325,196 | [4] | 429,013 | [4] | (6,786) | [4]
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Interest income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (303,349) |  | (237,332) |  | (247,442) |
Gain on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,696 |  | 0 |  | 0 |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,075) |  | (38,232) |  | 0 |
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,741 |  | 3,122 |  | 2,558 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 146,209 |  | 156,571 |  | (251,670) |
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (100,362) |  | (5,817) |  | (446,680) |
Net income | (294,529) | [1],[2],[5] | (159,752) | [1],[2],[5] | 917,076 | [1],[2],[5] | (216,224) | [1],[2],[5] | (394,448) | [3] | 636,004 | [3] | 223,170 | [3] | (302,338) | [3] | 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 |
Parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Condensed Consolidating Statement Of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 515 |  | 416 |  | 882 |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 515 |  | 416 |  | 882 |
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (515) |  | (416) |  | (882) |
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 426,264 |  | 379,177 |  | (10,253) |
Interest income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (303,510) |  | (236,109) |  | (245,284) |
Gain on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 55,585 |  |  |  |  |
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,075) |  | (38,232) |  |  |
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 74 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 174,749 |  | 104,420 |  | (256,345) |
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (100,808) |  | (5,984) |  | (446,910) |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 275,557 |  | 110,404 |  | 190,565 |
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 275,557 |  | 110,404 |  | 190,565 |
Guarantors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Condensed Consolidating Statement Of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,435,064 |  | 1,285,854 |  | 894,621 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,393,006 |  | 475,578 |  | 366,947 |
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 234,954 |  | 144,574 |  | 176,075 |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 570,786 |  |  |  |  |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 236,671 |  |  |  |  |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 351,708 |  | 319,297 |
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (198,732) |  | (33,749) |  | 50,872 |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,236,685 |  | 938,111 |  | 913,191 |
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 198,379 |  | 347,743 |  | (18,570) |
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,667 |  | 28,751 |  | 7,123 |
Interest income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 725 |  | (197) |  | (1,073) |
Gain on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,696 |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  |  |
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 83,797 |  | 2,880 |  | 2,267 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 426,264 |  | 379,177 |  | (10,253) |
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 426,264 |  | 379,177 |  | (10,253) |
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 426,264 |  | 379,177 |  | (10,253) |
Non-Guarantors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Condensed Consolidating Statement Of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 404,418 |  | 268,427 |  | 138,685 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 146,416 |  | 158,697 |  | 115,912 |
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,635 |  | 4,670 |  | 3,293 |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 87,044 |  |  |  |  |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 79,333 |  |  |  |  |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 31,361 |  | 6,814 |
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (42,687) |  | (10,326) |  | 0 |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 277,741 |  | 184,402 |  | 126,019 |
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 126,677 |  | 84,025 |  | 12,666 |
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Interest income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (564) |  | (1,026) |  | (1,085) |
Gain on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  |  |
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 242 |  | 217 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 126,113 |  | 83,241 |  | 11,798 |
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 446 |  | 167 |  | 230 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,667 |  | 83,074 |  | 11,568 |
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,667 |  | 83,074 |  | 11,568 |
Eliminations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Condensed Consolidating Statement Of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (108,517) |  | (139,068) |  | (101,570) |
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (107,750) |  | (135,712) |  | (100,885) |
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,422) |  | (1,017) |  | (685) |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (109,172) |  | (136,729) |  | (101,570) |
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 655 |  | (2,339) |  | 0 |
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (446,931) |  | (407,928) |  | 3,130 |
Interest income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Gain on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (55,585) |  |  |  |  |
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  |  |
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (79,056) |  | 0 |  | 0 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (580,917) |  | (410,267) |  | 3,130 |
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (580,917) |  | (410,267) |  | 3,130 |
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 105,000 |  | 54,323 |  | 4,445 |
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (685,917) |  | $ (464,590) |  | $ (1,315) |
[1] | Includes unrealized losses (gains) of $129.2 million, $(580.7) million, $222.5 million and $19.3 million on commodity derivative contracts for the first, second, third and fourth quarters, respectively.
[2] | Includes a $235.4 million goodwill impairment and a $79.3 million impairment of gas treating plants and CO2 compression facilities in the fourth quarter of 2012.
[3] | Includes unrealized losses (gains) of $269.0 million, $(188.3) million, $(604.6) million and $429.1 million on commodity derivative contracts for the first, second, third and fourth quarters, respectively.
[4] | 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.
[5] | Includes adjustments of $(4.8) million retrospectively applied to the second quarter of 2012 as a result of measurement period adjustments made to the preliminary purchase price allocation for the Dynamic Acquisition in the fourth quarter of 2012.

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