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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues
Total revenues	$ 482,743	$ 674,629	$ 1,587,880	$ 1,722,192
Operating expenses
Lease operating expenses	50,313	48,534	164,985	137,456
Marketing, transportation and gathering expenses	32,659	30,713	96,097	74,559
Production taxes	28,461	38,722	86,221	103,748
Depreciation, depletion and amortization	210,832	162,984	578,023	465,819
Exploration expenses	652	22,315	2,369	23,701
Impairment	0	0	653	384,228
General and administrative expenses	52,860	34,859	118,245	91,029
Total operating expenses	473,550	532,453	1,453,473	1,711,659
Gain (loss) on sale of properties	(752)	36,869	(3,950)	38,823
Operating income	8,441	179,045	130,457	49,356
Other income (expense)
Net gain (loss) on derivative instruments	47,922	(48,544)	(34,940)	(239,945)
Interest expense, net of capitalized interest	(43,897)	(39,560)	(131,551)	(117,616)
Loss on extinguishment of debt	0	(47)	0	(13,698)
Other income	473	111	706	146
Total other income (expense), net	4,498	(88,040)	(165,785)	(371,113)
Income (loss) before income taxes	12,939	91,005	(35,328)	(321,757)
Income tax benefit (expense)	17,372	(24,782)	8,835	75,391
Net income (loss) including non-controlling interests	30,311	66,223	(26,493)	(246,366)
Less: Net income attributable to non-controlling interests	10,023	3,882	25,344	10,907
Net income (loss) attributable to Oasis	$ 20,288	$ 62,341	$ (51,837)	$ (257,273)
Earnings (loss) attributable to Oasis per share:
Basic (in dollars per share)		$ 0.20	$ (0.16)	$ (0.84)
Diluted (in dollars per share)		$ 0.20	$ (0.16)	$ (0.84)
Weighted average shares outstanding:
Basic (in shares)	315,135	313,167	314,863	305,533
Diluted (in shares)	315,135	316,387	314,863	305,533
Oil and gas revenues
Revenues
Total revenues	$ 344,470	$ 454,195	$ 1,070,256	$ 1,218,639
Purchased oil and gas
Revenues
Total revenues	79,352	172,985	337,212	368,758
Operating expenses
Expenses	78,655	174,269	338,221	374,442
Midstream Services
Revenues
Total revenues	50,023	31,187	149,617	88,451
Operating expenses
Expenses	12,967	8,652	47,064	24,325
Well Services
Revenues
Total revenues	8,898	16,262	30,795	46,344
Operating expenses
Expenses	$ 6,151	$ 11,405	$ 21,595	$ 32,352

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