CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Revenues:
Total operating revenues	$ 121,282	$ 131,126	$ 330,846	$ 322,334
Operating Expenses:
Production tax expense	7,868	11,504	20,666	26,363
Exploration expense	56	19	93	39
Impairment, dry hole costs and abandonment expense	1,170	184	2,487	609
(Gain) loss on sale of properties	0	74	2,901	1,046
Depreciation, depletion and amortization	84,948	58,946	230,170	152,106
Unused commitments	4,418	4,574	13,239	13,684
General and administrative expense	11,048	12,696	36,109	34,427
Merger transaction expense	2,078	100	4,492	6,140
Other operating expenses, net	230	(764)	210	(716)
Total operating expenses	121,812	95,968	345,877	257,609
Operating Income (Loss)	(530)	35,158	(15,031)	64,725
Other Income and Expense:
Interest and other income	94	451	562	1,843
Interest expense	(15,167)	(13,165)	(43,227)	(39,348)
Commodity derivative gain (loss)	31,047	(51,547)	(54,600)	(128,166)
Gain (loss) on extinguishment of debt	0	(257)	0	(257)
Total other income and expense	15,974	(64,518)	(97,265)	(165,928)
Income (Loss) before Income Taxes	15,444	(29,360)	(112,296)	(101,203)
(Provision for) Benefit from Income Taxes	(4,330)	0	25,271	0
Net Income (Loss)	$ 11,114	$ (29,360)	$ (87,025)	$ (101,203)
Net Income (Loss) Per Common Share, Basic (in dollars per share)	$ 0.05	$ (0.14)	$ (0.41)	$ (0.56)
Net Income (Loss) Per Common Share, Diluted (in dollars per share)	$ 0.05	$ (0.14)	$ (0.41)	$ (0.56)
Weighted Average Common Shares Outstanding, Basic (in shares)	210,549,653	209,501,887	210,288,446	181,144,822
Weighted Average Common Shares Outstanding, Diluted (in shares)	210,937,271	209,501,887	210,288,446	181,144,822
Oil, gas and NGL production
Operating Revenues:
Production and other revenues	$ 121,281	$ 131,585	$ 330,472	$ 322,534
Other operating revenues, net
Operating Revenues:
Production and other revenues	1	(459)	374	(200)
Lease operating expense
Operating Expenses:
Cost of goods and services	8,385	7,237	30,434	21,082
Gathering, transportation and processing expense
Operating Expenses:
Cost of goods and services	$ 1,611	$ 1,398	$ 5,076	$ 2,829