CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 471	$ 448
Accounts receivable, less allowance for doubtful accounts of $4,994 and $2,719		123,842	188,941
Derivative assets		281,544	363,049
Inventory and other		33,217	17,854
Total current assets		439,074	570,292
Derivative assets		7,218	40,314
Natural gas and oil properties, successful efforts method	[1]	8,996,336	10,567,971
Accumulated depletion and depreciation	[1]	(2,635,031)	(2,590,398)
Natural gas and oil properties, successful efforts method, net	[1]	6,361,305	7,977,573
Other property and equipment		110,013	127,808
Accumulated depreciation and amortization		(90,558)	(90,227)
Other Property and equipment, net		19,455	37,581
Other assets		72,979	78,844
Total assets		6,900,031	8,704,604
Current liabilities:
Accounts payable		117,346	396,942
Asset retirement obligations		15,071	15,067
Accrued liabilities		188,028	187,973
Accrued interest		30,139	39,695
Derivative liabilities		1,136	0
Total current liabilities		351,720	639,677
Bank debt		86,427	713,221
Senior notes		738,101	0
Senior subordinated notes		1,826,775	2,317,603
Deferred tax liabilities		777,947	1,113,081
Derivative liabilities		21	0
Deferred compensation liabilities		104,792	178,599
Asset retirement obligations and other liabilities		254,590	284,994
Total liabilities		4,140,373	5,247,175
Commitments and contingencies		0	0
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, 169,375,743 issued at December 31, 2015 and 168,711,131 issued at December 31, 2014		1,693	1,687
Common stock held in treasury, 59,283 shares at December 31, 2015 and 82,954 shares at December 31, 2014		(2,245)	(3,088)
Additional paid-in capital		2,442,623	2,400,475
Retained earnings		317,587	1,058,355
Total stockholders' equity		2,759,658	3,457,429
Total liabilities and stockholders' equity		$ 6,900,031	$ 8,704,604

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