CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Revenues and other:
Total revenue		$ 178,713	$ 145,850
Operating expenses:
Workover and maintenance expense		23,019	6,905
Depreciation, depletion and amortization		64,587	49,040
Accretion expense		9,607	4,760
General and administrative expense		17,609	8,580
Total operating expenses		160,344	97,266
Operating income		18,369	48,584
Interest expense		(25,218)	(19,742)
Price risk management activities expense	[1]	(109,579)	(51,976)
Other income		433	191
Loss before income taxes		(115,995)	(22,943)
Income tax benefit		6,359
Net loss		$ (109,636)	$ (22,943)
Net loss per common share:
Basic		$ (2.02)	$ (0.73)
Diluted		$ (2.02)	$ (0.73)
Weighted average common shares outstanding:
Basic		54,156	31,244
Diluted		54,156	31,244
Oil and Gas Properties
Operating expenses:
Direct lease operating expense		$ 40,829	$ 24,915
Insurance		4,111	2,675
Production taxes		582	391
Total lease operating expense		45,522	27,981
Oil Revenue
Revenues and other:
Revenue		155,679	127,693
Natural Gas Revenue
Revenues and other:
Revenue		14,447	12,723
NGL Revenue
Revenues and other:
Revenue		5,066	$ 5,434
Other
Revenues and other:
Revenue		$ 3,521

[1] The Company paid $3.0 million and $20.4 million in net cash settlements for the three months ended March 31, 2019 and 2018, respectively.