Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues and other income	$ 305,452	$ 353,234
Expenses
Taxes other than income	23,785	27,319
General and administrative expenses	18,925	20,232
Interest, net of amounts capitalized of $10,534 and $8,452, respectively	17,398	17,239
Depletion, depreciation, and amortization	57,297	52,451
Commodity derivatives expense	83,377	48,825
Other expenses	3,079	2,328
Total expenses	341,885	299,636
Income (loss) before income taxes	(36,433)	53,598
Income tax provision (benefit)	(10,759)	14,020
Net income (loss)	$ (25,674)	$ 39,578
Net income (loss) per common share
Basic	$ (0.06)	$ 0.10
Diluted	$ (0.06)	$ 0.09
Weighted average common shares outstanding
Basic	451,720	392,742
Diluted	451,720	451,543
Other income
Revenues and other income	$ 2,305	$ 5,661
Marketing and plant operating expenses
Operating expenses	12,045	12,424
Oil, natural gas, and related product sales
Revenues and other income	294,577	340,021
Operating expenses	125,423	118,356
CO2
Revenues and other income	8,570	7,552
Operating expenses	$ 556	$ 462