CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents		$ 546	$ 545
Accounts receivable, less allowance for doubtful accounts of $8,784 and $6,118		272,900	490,723
Derivative assets		136,848	87,953
Other current assets		17,508	22,964
Total current assets		427,802	602,185
Derivative assets		706	4,842
Natural gas and oil properties, successful efforts method	[1]	10,213,737	13,085,206
Accumulated depletion and depreciation	[1]	(4,172,702)	(4,062,021)
Natural gas and oil properties, successful efforts method, net	[1]	6,041,035	9,023,185
Other property and equipment		102,083	111,908
Accumulated depreciation and amortization		(96,708)	(102,132)
Other Property and equipment, net		5,375	9,776
Operating lease right-of-use assets		62,053	0
Other assets		75,432	68,166
Total assets		6,612,403	9,708,154
Current liabilities:
Accounts payable		155,341	227,344
Asset retirement obligations		2,393	5,485
Accrued liabilities		356,392	475,848
Accrued interest		39,299	41,990
Derivative liabilities		13,119	4,144
Total current liabilities		566,544	754,811
Bank debt		464,319	932,018
Senior notes		2,659,844	2,856,166
Senior subordinated notes		48,774	48,677
Deferred tax liabilities		160,196	666,668
Derivative liabilities		949	3,462
Deferred compensation liabilities		64,070	67,542
Operating lease liabilities		41,068	0
Asset retirement obligations and other liabilities		259,151	319,379
Total liabilities		4,264,915	5,648,723
Commitments and contingencies
Stockholders' Equity
Preferred stock, $1 par 10,000,000 shares authorized, none issued and outstanding		0	0
Common stock, $0.01 par 475,000,000 shares authorized, 251,438,936 issued at December 31, 2019 and 249,519,687 issued at December 31, 2018		2,514	2,495
Common stock held in treasury, at cost, 1,808,133 shares at December 31, 2019 and 9,665 shares at December 31, 2018		(7,236)	(391)
Additional paid-in capital		5,659,832	5,628,447
Accumulated other comprehensive loss		(788)	(658)
Retained deficit		(3,306,834)	(1,570,462)
Total stockholders' equity		2,347,488	4,059,431
Total liabilities and stockholders' equity		$ 6,612,403	$ 9,708,154

[1] Includes capitalized asset retirement costs and the associated accumulated amortization.