CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total revenue	$ 187,764	$ 178,713
Operating expenses:
Depreciation, depletion and amortization	93,543	64,587
Write-down of oil and natural gas properties	57
Accretion expense	12,417	9,607
General and administrative expense	27,469	17,609
Total operating expenses	191,976	160,344
Operating income (expense)	(4,212)	18,369
Interest expense	(25,850)	(25,218)
Price risk management activities income (expense)	243,217	(109,579)
Other income (expense)	(146)	433
Net income (loss) before income taxes	213,009	(115,995)
Income tax benefit (expense)	(55,260)	6,359
Net income (loss)	$ 157,749	$ (109,636)
Net income (loss) per common share:
Basic	$ 2.71	$ (2.02)
Diluted	$ 2.69	$ (2.02)
Weighted average common shares outstanding:
Basic	58,240	54,156
Diluted	58,572	54,156
Oil and Gas Properties
Operating expenses:
Lease operating expense	$ 58,241	$ 67,959
Production taxes	249	582
Oil Revenue
Revenues:
Revenue	166,624	155,679
Natural Gas Revenue
Revenues:
Revenue	11,898	14,447
NGL Revenue
Revenues:
Revenue	4,301	5,066
Other
Revenues:
Revenue	$ 4,941	$ 3,521