CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents		$ 488	$ 545
Accounts receivable, less allowance for doubtful accounts of $6,118 and $6,118		356,716	490,723
Derivative assets		6,146	87,953
Inventory and other		25,128	22,964
Total current assets		388,478	602,185
Derivative assets		8,406	4,842
Natural gas and oil properties, successful efforts method	[1]	13,300,145	13,085,206
Accumulated depletion and depreciation	[1]	(4,194,876)	(4,062,021)
Natural gas and oil properties, successful efforts method, net	[1]	9,105,269	9,023,185
Other property and equipment		112,373	111,908
Accumulated depreciation and amortization		(103,548)	(102,132)
Other Property and equipment, net		8,825	9,776
Operating lease right-of-use assets		49,329
Other assets		74,757	68,166
Total assets		9,635,064	9,708,154
Current liabilities:
Accounts payable		215,073	227,344
Asset retirement obligations		5,485	5,485
Accrued liabilities		399,822	475,848
Accrued interest		37,051	41,990
Derivative liabilities		13,369	4,144
Total current liabilities		670,800	754,811
Bank debt		884,652	932,018
Senior notes		2,857,297	2,856,166
Senior subordinated notes		48,700	48,677
Deferred tax liabilities		672,376	666,668
Derivative liabilities		2,559	3,462
Deferred compensation liabilities		75,179	67,542
Operating lease liabilities		41,759
Asset retirement obligations and other liabilities		319,079	319,379
Total liabilities		5,572,401	5,648,723
Commitments and contingencies
Stockholders’ Equity
Preferred stock, $1 par, 10,000,000 shares authorized, none issued and outstanding
Common stock, $0.01 par, 475,000,000 shares authorized, 251,147,799 issued at March 31, 2019 and 249,519,687 issued at December 31, 2018		2,512	2,495
Common stock held in treasury, 9,665 shares at March 31, 2019 and 9,665 shares at December 31, 2018		(391)	(391)
Additional paid-in capital		5,635,210	5,628,447
Accumulated other comprehensive loss		(598)	(658)
Retained deficit		(1,574,070)	(1,570,462)
Total stockholders’ equity		4,062,663	4,059,431
Total liabilities and stockholders’ equity		$ 9,635,064	$ 9,708,154

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