Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues and other income	$ 242,201	$ 305,452
Expenses
Taxes other than income	19,686	23,785
General and administrative expenses	9,733	18,925
Interest, net of amounts capitalized of $9,452 and $10,534, respectively	19,946	17,398
Depletion, depreciation, and amortization	96,862	57,297
Commodity derivatives expense (income)	(146,771)	83,377
Gain on debt extinguishment	(18,994)	0
Write-down of oil and natural gas properties	72,541	0
Other expenses	2,494	4,138
Total expenses	178,801	341,885
Income (loss) before income taxes	63,400	(36,433)
Income tax benefit	(10,616)	(10,759)
Net income (loss)	$ 74,016	$ (25,674)
Net income (loss) per common share
Basic	$ 0.15	$ (0.06)
Diluted	$ 0.14	$ (0.06)
Weighted average common shares outstanding
Basic	494,259	451,720
Diluted	586,190	451,720
Other income
Revenues and other income	$ 828	$ 2,090
Transportation and marketing
Operating expenses	9,621	10,773
Oil, natural gas, and related product sales
Revenues and other income	229,624	294,577
Operating expenses	109,270	125,423
CO2
Revenues and other income	8,028	8,570
Operating expenses	752	556
Purchased oil sales
Revenues and other income	3,721	215
Operating expenses	$ 3,661	$ 213