Quarterly Financial Data — Unaudited

The following tables set forth the Company’s results of operations by quarter for the years ended December 31, 2018 and 2017, including effects of the revision discussed within Note 2 — Summary of Significant Accounting Policies to the 2018 and 2017 previously issued unaudited quarterly financial results. The 2018 quarterly revisions will be adjusted in connection with the future 2019 unaudited interim condensed consolidated financial statement filings on Form 10-Q.



	For the Year Ended December 31, 2018
	First Quarter⁽¹⁾		Second Quarter⁽¹⁾			Third Quarter⁽¹⁾		Fourth Quarter
	(In thousands, except per share data)
Total revenues	$	473,812	$	573,751		$	674,629	$	599,755
Operating income (loss)	112,985		(242,674		)	179,045		69,656
Net income (loss) including non-controlling interests	3,712		(316,301		)	66,223		226,866
Net income (loss) attributable to Oasis	590		(320,204		)	62,341		221,977
Earnings (loss) attributable to Oasis per share:
Basic	$	0.00	$	(1.02	)	$	0.20	$	0.71
Diluted	$	0.00	$	(1.02	)	$	0.20	$	0.70



	For the Year Ended December 31, 2017
	First Quarter⁽¹⁾		Second Quarter⁽¹⁾		Third Quarter⁽¹⁾			Fourth Quarter⁽¹⁾
	(In thousands, except per share data)
Total revenues	$	277,752	$	260,809	$	320,283		$	434,875
Operating income	20,092		5,379		32,394			86,103
Net income (loss) including non-controlling interests	23,825		16,568		(41,064		)	128,117
Net income (loss) attributable to Oasis	23,825		16,568		(41,214		)	124,617
Earnings (loss) attributable to Oasis per share:
Basic	$	0.10	$	0.07	$	(0.18	)	$	0.52
Diluted	$	0.10	$	0.07	$	(0.18	)	$	0.52

__________________


(1)	For the quarters during the years ended December 31, 2018 and 2017, the impacts of the revision to the Company's Consolidated Statements of Operations are presented in the following tables:



	Quarter Ended March 31, 2018
	As Reported		Revision		As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	363,671	$	2,924	$	366,595
Purchased oil and gas sales	18,037		49,672		67,709
Total revenues	421,216		52,596		473,812
Purchased oil and gas expenses	17,998		52,596		70,594
Total operating expenses	308,231		52,596		360,827
Operating income	112,985		—		112,985
Net income including non-controlling interests	3,712		—		3,712
Net income attributable to Oasis	590		—		590
Earnings attributable to Oasis per share:
Basic	$	0.00	$	—	$	0.00
Diluted	$	0.00	$	—	$	0.00



	Quarter Ended June 30, 2018
	As Reported			Revision		As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	395,921		$	1,928	$	397,849
Purchased oil and gas sales	57,578			70,486		128,064
Total revenues	501,337			72,414		573,751
Purchased oil and gas expenses	57,165			72,414		129,579
Total operating expenses	745,965			72,414		818,379
Operating loss	(242,674		)	—		(242,674		)
Net loss including non-controlling interests	(316,301		)	—		(316,301		)
Net loss attributable to Oasis	(320,204		)	—		(320,204		)
Loss attributable to Oasis per share:
Basic	$	(1.02	)	$	—	$	(1.02	)
Diluted	$	(1.02	)	$	—	$	(1.02	)



	Quarter Ended September 30, 2018
	As Reported		Revision		As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	452,643	$	1,552	$	454,195
Purchased oil and gas sales	46,356		126,629		172,985
Total revenues	546,448		128,181		674,629
Purchased oil and gas expenses	46,088		128,181		174,269
Total operating expenses	404,272		128,181		532,453
Operating income	179,045		—		179,045
Net income including non-controlling interests	66,223		—		66,223
Net income attributable to Oasis	62,341		—		62,341
Earnings attributable to Oasis per share:
Basic	$	0.20	$	—	$	0.20
Diluted	$	0.20	$	—	$	0.20



	Quarter Ended March 31, 2017
	As Reported		Revision			As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	237,252	$	(7	)	$	237,245
Purchased oil and gas sales	27,631		(7,357		)	20,274
Total revenues	285,116		(7,364		)	277,752
Purchased oil and gas expenses	28,002		(7,364		)	20,638
Total operating expenses	265,024		(7,364		)	257,660
Operating income	20,092		—			20,092
Net income including non-controlling interests	23,825		—			23,825
Net income attributable to Oasis	23,825		—			23,825
Earnings attributable to Oasis per share:
Basic	$	0.10	$	—		$	0.10
Diluted	$	0.10	$	—		$	0.10



	Quarter Ended June 30, 2017
	As Reported		Revision			As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	218,633	$	(110	)	$	218,523
Purchased oil and gas sales	8,091		6,828			14,919
Total revenues	254,091		6,718			260,809
Purchased oil and gas expenses	7,980		6,718			14,698
Total operating expenses	248,712		6,718			255,430
Operating income	5,379		—			5,379
Net income including non-controlling interests	16,568		—			16,568
Net income attributable to Oasis	16,568		—			16,568
Earnings attributable to Oasis per share:
Basic	$	0.07	$	—		$	0.07
Diluted	$	0.07	$	—		$	0.07



	Quarter Ended September 30, 2017
	As Reported			Revision			As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	248,648		$	(72	)	$	248,576
Purchased oil and gas sales	21,195			15,607			36,802
Total revenues	304,748			15,535			320,283
Purchased oil and gas expenses	21,701			15,535			37,236
Total operating expenses	272,354			15,535			287,889
Operating income	32,394			—			32,394
Net loss including non-controlling interests	(41,064		)	—			(41,064		)
Net loss attributable to Oasis	(41,214		)	—			(41,214		)
Loss attributable to Oasis per share:
Basic	$	(0.18	)	$	—		$	(0.18	)
Diluted	$	(0.18	)	$	—		$	(0.18	)



	Quarter Ended December 31, 2017
	As Reported		Revision			As Revised
	(In thousands, except per share data)
Oil and gas revenues	$	330,359	$	(69	)	$	330,290
Purchased oil and gas sales	31,072		30,475			61,547
Total revenues	404,469		30,406			434,875
Purchased oil and gas expenses	31,637		30,406			62,043
Total operating expenses	320,140		30,406			350,546
Operating income	86,103		—			86,103
Net income including non-controlling interests	128,117		—			128,117
Net income attributable to Oasis	124,617		—			124,617
Earnings attributable to Oasis per share:
Basic	$	0.52	$	—		$	0.52
Diluted	$	0.52	$	—		$	0.52