CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (in thousands, except share data) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 15	$ 10
Accounts receivable	143,311	184,732
Derivative assets	463,992	55,184
Prepaid expenses and other	17,842	12,708
Total current assets	625,160	252,634
Property and equipment (successful efforts method):
Proved oil and gas properties	8,043,156	8,934,020
Accumulated depletion, depreciation, and amortization	(4,389,103)	(4,177,876)
Unproved oil and gas properties	972,844	1,005,887
Wells in progress	224,509	118,769
Other property and equipment, net of accumulated depreciation of $64,815 and $64,032, respectively	36,932	72,848
Total property and equipment, net	4,888,338	5,953,648
Noncurrent assets:
Derivative assets	44,909	20,624
Other noncurrent assets	56,618	65,326
Total noncurrent assets	101,527	85,950
Total assets	5,615,025	6,292,232
Other property and equipment, accumulated depreciation	64,815	64,032
Current liabilities:
Accounts payable and accrued expenses	359,406	402,008
Derivative liabilities	8,277	50,846
Other current liabilities	15,780	19,189
Total current liabilities	383,463	472,043
Noncurrent liabilities:
Revolving credit facility	72,000	122,500
Senior Notes, net of unamortized deferred financing costs	2,413,663	2,453,035
Senior Convertible Notes, net of unamortized discount and deferred financing costs	159,721	157,263
Asset retirement obligations	85,267	84,134
Deferred income taxes	93,918	189,386
Derivative liabilities	7,202	3,444
Other noncurrent liabilities	58,074	61,433
Total noncurrent liabilities	2,889,845	3,071,195
Commitments and contingencies (note 6)
Stockholders’ equity:
Common stock, $0.01 par value - authorized: 200,000,000 shares; issued and outstanding: 112,988,682 and 112,987,952 shares, respectively	1,130	1,130
Additional paid-in capital	1,797,154	1,791,596
Retained earnings	554,562	967,587
Accumulated other comprehensive loss	(11,129)	(11,319)
Total stockholders' equity	2,341,717	2,748,994
Total liabilities and stockholders’ equity	$ 5,615,025	$ 6,292,232
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	112,988,682	112,987,952
Common Stock, Shares, Outstanding	112,988,682	112,987,952