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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, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenues |  |  |  |
Total revenues | $ 546,448 | $ 304,748 | $ 1,469,001 | $ 843,955
Operating expenses |  |  |  |
Lease operating expenses | 48,534 | 45,334 | 137,456 | 133,871
Marketing, transportation and gathering expenses | 30,713 | 15,028 | 74,559 | 38,018
Production taxes | 38,722 | 21,052 | 103,748 | 60,322
Depreciation, depletion and amortization | 162,984 | 132,289 | 465,819 | 384,246
Exploration expenses | 22,315 | 854 | 23,701 | 4,010
Impairment | 0 | 139 | 384,228 | 6,021
General and administrative expenses | 34,859 | 21,368 | 91,029 | 67,170
Total operating expenses | 404,272 | 272,354 | 1,458,468 | 786,090
Gain on sale of properties | 36,869 | 0 | 38,823 | 0
Operating income | 179,045 | 32,394 | 49,356 | 57,865
Other income (expense) |  |  |  |
Equity In Earnings In Subsidiaries | 0 | 0 | 0 | 0
Net gain (loss) on derivative instruments | (48,544) | (54,310) | (239,945) | 52,297
Interest expense, net of capitalized interest | (39,560) | (37,389) | (117,616) | (110,548)
Loss on extinguishment of debt | (47) | 0 | (13,698) | 0
Other income (expense) | 111 | (605) | 146 | (755)
Total other expense | (88,040) | (92,304) | (371,113) | (59,006)
Income (loss) before income taxes | 91,005 | (59,910) | (321,757) | (1,141)
Income tax benefit (expense) | (24,782) | 18,846 | 75,391 | 470
Net loss including non-controlling interests | 66,223 | (41,064) | (246,366) | (671)
Less: Net income attributable to non-controlling interests | 3,882 | 150 | 10,907 | 150
Net income (loss) attributable to Oasis | 62,341 | (41,214) | (257,273) | (821)
Intercompany Eliminations [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | (41,045) | 0 | (113,827) | 0
Operating expenses |  |  |  |
Lease operating expenses | (14,565) | 0 | (38,957) | 0
Marketing, transportation and gathering expenses | (6,126) | 0 | (17,605) | 0
Production taxes | 0 | 0 | 0 | 0
Depreciation, depletion and amortization | (4,048) | 0 | (11,017) | 0
Exploration expenses | 0 | 0 | 0 | 0
Impairment |  | 0 | 0 | 0
General and administrative expenses | (2,703) | 0 | (8,940) | 0
Total operating expenses | (39,194) | 0 | (107,574) | 0
Gain on sale of properties | 0 |  | 0 |
Operating income | (1,851) | 0 | (6,253) | 0
Other income (expense) |  |  |  |
Equity In Earnings In Subsidiaries | (135,390) | 11,994 | 41,446 | (75,984)
Net gain (loss) on derivative instruments | 0 | 0 | 0 | 0
Interest expense, net of capitalized interest | 0 | 0 | 0 | 0
Loss on extinguishment of debt | 0 |  | 0 |
Other income (expense) | 0 | 0 | 0 | 0
Total other expense | (135,390) | 11,994 | 41,446 | (75,984)
Income (loss) before income taxes | (137,241) | 11,994 | 35,193 | (75,984)
Income tax benefit (expense) | 0 | 0 | 0 | 0
Net loss including non-controlling interests | (137,241) | 11,994 | 35,193 | (75,984)
Less: Net income attributable to non-controlling interests | (26,459) | (1,112) | (73,075) | (1,112)
Net income (loss) attributable to Oasis | (110,782) | 13,106 | 108,268 | (74,872)
Parent/Issuer [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Lease 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
Impairment |  | 0 | 0 | 0
General and administrative expenses | 7,486 | 6,775 | 22,214 | 21,374
Total operating expenses | 7,486 | 6,775 | 22,214 | 21,374
Gain on sale of properties | 0 |  | 0 |
Operating income | (7,486) | (6,775) | (22,214) | (21,374)
Other income (expense) |  |  |  |
Equity In Earnings In Subsidiaries | 96,555 | (13,599) | (149,295) | 74,379
Net gain (loss) on derivative instruments | 0 | 0 | 0 | 0
Interest expense, net of capitalized interest | (32,836) | (32,894) | (98,417) | (98,751)
Loss on extinguishment of debt | (47) |  | (13,698) |
Other income (expense) | 0 | 2 | 0 | 2
Total other expense | 63,672 | (46,491) | (261,410) | (24,370)
Income (loss) before income taxes | 56,186 | (53,266) | (283,624) | (45,744)
Income tax benefit (expense) | 6,155 | 12,052 | 26,351 | 44,923
Net loss including non-controlling interests | 62,341 | (41,214) | (257,273) | (821)
Less: Net income attributable to non-controlling interests | 0 | 0 | 0 | 0
Net income (loss) attributable to Oasis | 62,341 | (41,214) | (257,273) | (821)
Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 516,026 | 301,809 | 1,383,382 | 841,016
Operating expenses |  |  |  |
Lease operating expenses | 63,099 | 45,334 | 176,413 | 133,871
Marketing, transportation and gathering expenses | 36,839 | 15,028 | 92,164 | 38,018
Production taxes | 38,722 | 21,052 | 103,748 | 60,322
Depreciation, depletion and amortization | 159,843 | 132,035 | 456,624 | 383,992
Exploration expenses | 22,315 | 854 | 23,701 | 4,010
Impairment |  | 139 | 384,228 | 6,021
General and administrative expenses | 24,627 | 14,212 | 60,259 | 45,415
Total operating expenses | 403,526 | 264,264 | 1,452,854 | 763,401
Gain on sale of properties | 36,869 |  | 38,823 |
Operating income | 149,369 | 37,545 | (30,649) | 77,615
Other income (expense) |  |  |  |
Equity In Earnings In Subsidiaries | 38,835 | 1,605 | 107,849 | 1,605
Net gain (loss) on derivative instruments | (48,544) | (54,310) | (239,945) | 52,297
Interest expense, net of capitalized interest | (6,561) | (4,476) | (18,591) | (11,778)
Loss on extinguishment of debt | 0 |  | 0 |
Other income (expense) | 126 | (607) | 161 | (757)
Total other expense | (16,144) | (57,788) | (150,526) | 41,367
Income (loss) before income taxes | 133,225 | (20,243) | (181,175) | 118,982
Income tax benefit (expense) | (30,937) | 6,794 | 49,040 | (44,453)
Net loss including non-controlling interests | 102,288 | (13,449) | (132,135) | 74,529
Less: Net income attributable to non-controlling interests | 3,882 | 150 | 10,907 | 150
Net income (loss) attributable to Oasis | 98,406 | (13,599) | (143,042) | 74,379
Non-Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 71,467 | 2,939 | 199,446 | 2,939
Operating expenses |  |  |  |
Lease 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 | 7,189 | 254 | 20,212 | 254
Exploration expenses | 0 | 0 | 0 | 0
Impairment |  | 0 | 0 | 0
General and administrative expenses | 5,449 | 381 | 17,496 | 381
Total operating expenses | 32,454 | 1,315 | 90,974 | 1,315
Gain on sale of properties | 0 |  | 0 |
Operating income | 39,013 | 1,624 | 108,472 | 1,624
Other income (expense) |  |  |  |
Equity In Earnings In Subsidiaries | 0 | 0 | 0 | 0
Net gain (loss) on derivative instruments | 0 | 0 | 0 | 0
Interest expense, net of capitalized interest | (163) | (19) | (608) | (19)
Loss on extinguishment of debt | 0 |  | 0 |
Other income (expense) | (15) | 0 | (15) | 0
Total other expense | (178) | (19) | (623) | (19)
Income (loss) before income taxes | 38,835 | 1,605 | 107,849 | 1,605
Income tax benefit (expense) | 0 | 0 | 0 | 0
Net loss including non-controlling interests | 38,835 | 1,605 | 107,849 | 1,605
Less: Net income attributable to non-controlling interests | 26,459 | 1,112 | 73,075 | 1,112
Net income (loss) attributable to Oasis | 12,376 | 493 | 34,774 | 493
Oil and Gas [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 452,643 | 248,648 | 1,212,235 | 704,533
Oil and Gas [Member] | Intercompany Eliminations [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Oil and Gas [Member] | Parent/Issuer [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Oil and Gas [Member] | Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 452,643 | 248,648 | 1,212,235 | 704,533
Oil and Gas [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Purchased Oil and Gas Sales [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 46,356 | 21,195 | 121,971 | 56,917
Operating expenses |  |  |  |
Expenses | 46,088 | 21,701 | 121,251 | 57,683
Purchased Oil and Gas Sales [Member] | Intercompany Eliminations [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | (60) | 0 | (60) | 0
Purchased Oil and Gas Sales [Member] | Parent/Issuer [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | 0 | 0 | 0 | 0
Purchased Oil and Gas Sales [Member] | Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 46,356 | 21,195 | 121,971 | 56,917
Operating expenses |  |  |  |
Expenses | 46,148 | 21,701 | 121,311 | 57,683
Purchased Oil and Gas Sales [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | 0 | 0 | 0 | 0
Midstream Services [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 31,187 | 18,767 | 88,451 | 48,939
Operating expenses |  |  |  |
Expenses | 8,652 | 4,301 | 24,325 | 10,891
Midstream Services [Member] | Intercompany Eliminations [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | (41,045) | 0 | (113,827) | 0
Operating expenses |  |  |  |
Expenses | (11,692) | 0 | (30,995) | 0
Midstream Services [Member] | Parent/Issuer [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | 0 | 0 | 0 | 0
Midstream Services [Member] | Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 765 | 15,828 | 2,832 | 46,000
Operating expenses |  |  |  |
Expenses | 528 | 3,621 | 2,054 | 10,211
Midstream Services [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 71,467 | 2,939 | 199,446 | 2,939
Operating expenses |  |  |  |
Expenses | 19,816 | 680 | 53,266 | 680
Well Services [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 16,262 | 16,138 | 46,344 | 33,566
Operating expenses |  |  |  |
Expenses | 11,405 | 10,288 | 32,352 | 23,858
Well Services [Member] | Intercompany Eliminations [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | 0 | 0 | 0 | 0
Well Services [Member] | Parent/Issuer [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | 0 | 0 | 0 | 0
Well Services [Member] | Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 16,262 | 16,138 | 46,344 | 33,566
Operating expenses |  |  |  |
Expenses | 11,405 | 10,288 | 32,352 | 23,858
Well Services [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating expenses |  |  |  |
Expenses | $ 0 | $ 0 | $ 0 | $ 0

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