CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents		$ 545	$ 448
Accounts receivable, less allowance for doubtful accounts of $6,118 and $7,111		490,723	348,833
Derivative assets		87,953	58,607
Inventory and other		22,964	21,346
Total current assets		602,185	429,234
Derivative assets		4,842	273
Goodwill		0	1,641,197
Natural gas and oil properties, successful efforts method	[1]	13,085,206	13,216,453
Accumulated depletion and depreciation	[1]	(4,062,021)	(3,649,716)
Natural gas and oil properties, successful efforts method, net	[1]	9,023,185	9,566,737
Other property and equipment		111,908	114,361
Accumulated depreciation and amortization		(102,132)	(99,695)
Other Property and equipment, net		9,776	14,666
Other assets		68,166	76,734
Total assets		9,708,154	11,728,841
Current liabilities:
Accounts payable		227,344	343,871
Asset retirement obligations		5,485	6,327
Accrued liabilities		475,848	317,531
Accrued interest		41,990	43,511
Derivative liabilities		4,144	44,233
Total current liabilities		754,811	755,473
Bank debt		932,018	1,208,467
Senior notes		2,856,166	2,851,754
Senior subordinated notes		48,677	48,585
Deferred tax liabilities		666,668	693,356
Derivative liabilities		3,462	9,789
Deferred compensation liabilities		67,542	101,102
Asset retirement obligations and other liabilities		319,379	286,043
Total liabilities		5,648,723	5,954,569
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, 249,519,687 issued at December 31, 2018 and 248,144,397 issued at December 31, 2017		2,495	2,481
Common stock held in treasury, 9,665 shares at December 31, 2018 and 14,967 shares at December 31, 2017		(391)	(599)
Additional paid-in capital		5,628,447	5,577,732
Accumulated other comprehensive loss		(658)	(1,332)
Retained (deficit) earnings		(1,570,462)	195,990
Total stockholders' equity		4,059,431	5,774,272
Total liabilities and stockholders' equity		$ 9,708,154	$ 11,728,841

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