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Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Revenues |  |  |  |
Oil and gas revenues | $ 158,183 | $ 175,270 | $ 434,835 | $ 563,239
Well services and midstream revenues | 19,128 | 21,965 | 51,839 | 44,429
Total revenues | 177,311 | 197,235 | 486,674 | 607,668
Operating expenses |  |  |  |
Lease operating expenses | 35,696 | 35,670 | 98,283 | 112,556
Well services and midstream operating expenses | 8,165 | 10,023 | 21,429 | 19,370
Marketing, transportation and gathering expenses | 8,856 | 8,465 | 23,899 | 23,313
Production taxes | 14,638 | 16,676 | 39,758 | 53,915
Depreciation, depletion and amortization | 111,948 | 123,734 | 356,885 | 361,430
Exploration expenses | 489 | 327 | 1,192 | 2,252
Rig termination | 0 | 0 | 0 | 3,895
Impairment | 382 | 80 | 3,967 | 24,917
General and administrative expenses | 22,845 | 22,358 | 69,087 | 67,190
Total operating expenses | 203,019 | 217,333 | 614,500 | 668,838
Gain (loss) on sale of properties | 6 | 172 | (1,305) | 172
Operating loss | (25,702) | (19,926) | (129,131) | (60,998)
Other income (expense) |  |  |  |
Equity in loss of subsidiaries | 0 | 0 | 0 | 0
Net gain (loss) on derivative instruments | 20,847 | 103,637 | (55,624) | 111,285
Interest expense, net of capitalized interest | (31,726) | (36,513) | (105,444) | (112,702)
Gain (loss) on extinguishment of debt | (13,793) | 0 | 4,865 | 0
Other income | (259) | 249 | 188 | 370
Total other income (expense) | (24,931) | 67,373 | (156,015) | (1,047)
Income (loss) before income taxes | (50,633) | 47,447 | (285,146) | (62,045)
Income tax benefit (expense) | 16,691 | (20,392) | 96,818 | 17,829
Net income (loss) | (33,942) | 27,055 | (188,328) | (44,216)
Intercompany Eliminations [Member] |  |  |  |
Revenues |  |  |  |
Oil and gas revenues | 0 | 0 | 0 | 0
Well services and midstream revenues | 0 | 0 | 0 | 0
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Lease operating expenses | 0 | 0 | 0 | 0
Well services and midstream operating expenses | 0 | 0 | 0 | 0
Marketing, transportation and gathering expenses | 0 | 0 | 0 | 0
Production taxes | 0 | 0 | 0 | 0
Depreciation, depletion and amortization | 0 | 0 | 0 | 0
Exploration expenses | 0 | 0 | 0 | 0
Rig termination |  |  |  | 0
Impairment | 0 | 0 | 0 | 0
General and administrative expenses | 0 | 0 | 0 | 0
Total operating expenses | 0 | 0 | 0 | 0
Gain (loss) on sale of properties | 0 | 0 | 0 | 0
Operating loss | 0 | 0 | 0 | 0
Other income (expense) |  |  |  |
Equity in loss of subsidiaries | 1,140 | (49,899) | 110,454 | (28,269)
Net gain (loss) on derivative instruments | 0 | 0 | 0 | 0
Interest expense, net of capitalized interest | 0 | 0 | 0 | 0
Gain (loss) on extinguishment of debt | 0 |  | 0 |
Other income | 0 | 0 | 0 | 0
Total other income (expense) | 1,140 | (49,899) | 110,454 | (28,269)
Income (loss) before income taxes | 1,140 | (49,899) | 110,454 | (28,269)
Income tax benefit (expense) | 0 | 0 | 0 | 0
Net income (loss) | 1,140 | (49,899) | 110,454 | (28,269)
Parent/Issuer [Member] |  |  |  |
Revenues |  |  |  |
Oil and gas revenues | 0 | 0 | 0 | 0
Well services and midstream revenues | 0 | 0 | 0 | 0
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Lease operating expenses | 0 | 0 | 0 | 0
Well services and midstream operating expenses | 0 | 0 | 0 | 0
Marketing, transportation and gathering expenses | 0 | 0 | 0 | 0
Production taxes | 0 | 0 | 0 | 0
Depreciation, depletion and amortization | 0 | 0 | 0 | 0
Exploration expenses | 0 | 0 | 0 | 0
Rig termination |  |  |  | 0
Impairment | 0 | 0 | 0 | 0
General and administrative expenses | 5,930 | 5,903 | 19,776 | 20,847
Total operating expenses | 5,930 | 5,903 | 19,776 | 20,847
Gain (loss) on sale of properties | 0 | 0 | 0 | 0
Operating loss | (5,930) | (5,903) | (19,776) | (20,847)
Other income (expense) |  |  |  |
Equity in loss of subsidiaries | (1,140) | 49,899 | (110,454) | 28,269
Net gain (loss) on derivative instruments | 0 | 0 | 0 | 0
Interest expense, net of capitalized interest | (29,876) | (34,020) | (97,898) | (103,435)
Gain (loss) on extinguishment of debt | (13,793) |  | 4,865 |
Other income | 1 | 1 | 44 | 5
Total other income (expense) | (44,808) | 15,880 | (203,443) | (75,161)
Income (loss) before income taxes | (50,738) | 9,977 | (223,219) | (96,008)
Income tax benefit (expense) | 16,796 | 17,078 | 34,891 | 51,792
Net income (loss) | (33,942) | 27,055 | (188,328) | (44,216)
Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Oil and gas revenues | 158,183 | 175,270 | 434,835 | 563,239
Well services and midstream revenues | 19,128 | 21,965 | 51,839 | 44,429
Total revenues | 177,311 | 197,235 | 486,674 | 607,668
Operating expenses |  |  |  |
Lease operating expenses | 35,696 | 35,670 | 98,283 | 112,556
Well services and midstream operating expenses | 8,165 | 10,023 | 21,429 | 19,370
Marketing, transportation and gathering expenses | 8,856 | 8,465 | 23,899 | 23,313
Production taxes | 14,638 | 16,676 | 39,758 | 53,915
Depreciation, depletion and amortization | 111,948 | 123,734 | 356,885 | 361,430
Exploration expenses | 489 | 327 | 1,192 | 2,252
Rig termination |  |  |  | 3,895
Impairment | 382 | 80 | 3,967 | 24,917
General and administrative expenses | 16,915 | 16,455 | 49,311 | 46,343
Total operating expenses | 197,089 | 211,430 | 594,724 | 647,991
Gain (loss) on sale of properties | 6 | 172 | (1,305) | 172
Operating loss | (19,772) | (14,023) | (109,355) | (40,151)
Other income (expense) |  |  |  |
Equity in loss of subsidiaries | 0 | 0 | 0 | 0
Net gain (loss) on derivative instruments | 20,847 | 103,637 | (55,624) | 111,285
Interest expense, net of capitalized interest | (1,850) | (2,493) | (7,546) | (9,267)
Gain (loss) on extinguishment of debt | 0 |  | 0 |
Other income | (260) | 248 | 144 | 365
Total other income (expense) | 18,737 | 101,392 | (63,026) | 102,383
Income (loss) before income taxes | (1,035) | 87,369 | (172,381) | 62,232
Income tax benefit (expense) | (105) | (37,470) | 61,927 | (33,963)
Net income (loss) | $ (1,140) | $ 49,899 | $ (110,454) | $ 28,269

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