CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues and other income:
Revenues and other income	$ 424,035	$ 547,769	$ 1,267,629	$ 2,013,821
Derivative fair value (loss) income	(124,690)	74,676	102,182	208,190
Total revenues and other income	299,345	622,445	1,369,811	2,222,011
Costs and expenses:
Production and ad valorem taxes	6,106	7,805	20,682	29,004
Brokered natural gas and marketing	47,967	79,938	118,752	313,360
Exploration	8,086	11,013	23,190	27,333
Abandonment and impairment of unproved properties	5,667	16,202	16,604	41,631
General and administrative	38,153	41,047	118,695	138,316
Exit and termination costs	521,633	819	533,525	3,025
Deferred compensation plan	6,237	(8,871)	10,287	(16,432)
Interest	47,999	46,997	144,141	150,261
Loss (gain) on early extinguishment of debt	7,821	(2,985)	(14,093)	(2,985)
Depletion, depreciation and amortization	96,167	137,751	303,779	417,974
Impairment of proved properties and other assets	1,955	0	78,955	0
Loss (gain) on the sale of assets	9,230	36,341	(112,443)	30,663
Total costs and expenses	1,084,644	697,245	2,149,766	2,134,420
(Loss) income before income taxes	(785,299)	(74,800)	(779,955)	87,591
Income tax (benefit) expense:
Current	0	4,079	(366)	4,079
Deferred	(105,251)	(51,298)	(97,947)	(5,511)
Total (benefit) expense for income taxes	(105,251)	(47,219)	(98,313)	(1,432)
Net (loss) income	$ (680,048)	$ (27,581)	$ (681,642)	$ 89,023
Net (loss) income per common share:
Basic	$ (2.83)	$ (0.11)	$ (2.82)	$ 0.35
Diluted	(2.83)	(0.11)	(2.82)	0.35
Dividends paid per common share	$ 0	$ 0.02	$ 0	$ 0.06
Weighted average common shares outstanding:
Basic	239,895	248,082	241,770	247,878
Diluted	239,895	248,082	241,770	248,823
Natural Gas, NGLs and Oil Sales
Revenues and other income:
Revenues and other income	$ 381,553	$ 474,754	$ 1,162,907	$ 1,709,987
Brokered Natural Gas, Marketing and Other
Revenues and other income:
Revenues and other income	42,482	73,015	104,722	303,834
Direct Operating
Costs and expenses:
Costs and expenses	19,515	35,276	75,944	102,484
Transportation, Gathering, Processing and Compression
Costs and expenses:
Costs and expenses	$ 268,108	$ 295,912	$ 831,748	$ 899,786