CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
REVENUES
Sales and other operating revenues	$ 544,658	$ 429,094
Gain on sale of assets	131,982	22
Interest and other income (loss)	(12,021)	1,179
Total revenues	664,619	430,295
COSTS AND EXPENSES
Lease operating expenses	122,142	159,103
Severance and ad valorem taxes	11,213	12,637
Exploration expenses, including undeveloped lease amortization	28,663	26,916
Selling and general expenses	54,255	73,507
Depreciation, depletion and amortization	236,154	286,149
Impairment of assets		95,088
Accretion of asset retirement obligations	10,556	12,125
Interest expense	45,690	32,061
Interest capitalized	(1,093)	(1,841)
Other expense (benefit)	2,157	(416)
Total costs and expenses	509,737	695,329
Income (loss) from continuing operations before income taxes	154,882	(265,034)
Income tax expense (benefit)	97,387	(65,549)
Income (loss) from continuing operations	57,495	(199,485)
Income from discontinued operations, net of income taxes	969	683
NET INCOME (LOSS)	$ 58,464	$ (198,802)
INCOME (LOSS) PER COMMON SHARE - BASIC
Continuing operations	$ 0.33	$ (1.16)
Discontinued operations	0.01
Net income (loss)	0.34	(1.16)
INCOME (LOSS) PER COMMON SHARE - DILUTED
Continuing operations	0.33	(1.16)
Discontinued operations	0.01
Net income (loss)	$ 0.34	$ (1.16)
Average Common shares outstanding
Basic	172,422,449	172,114,012
Diluted	173,088,691	172,114,012