CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents		$ 520	$ 314
Accounts receivable, less allowance for doubtful accounts of $5,861 and $5,559		261,129	241,718
Derivative assets		80,559	13,278
Inventory and other		18,406	26,573
Total current assets		360,614	281,883
Derivative assets		16,870	205
Goodwill		1,646,710	1,654,292
Natural gas and oil properties, successful efforts method	[1]	12,843,905	12,386,153
Accumulated depletion and depreciation	[1]	(3,338,463)	(3,129,816)
Natural gas and oil properties, successful efforts method, net	[1]	9,505,442	9,256,337
Other property and equipment		114,184	112,796
Accumulated depreciation and amortization		(98,024)	(95,923)
Other Property and equipment, net		16,160	16,873
Other assets		75,540	72,655
Total assets		11,621,336	11,282,245
Current liabilities:
Accounts payable		286,619	229,190
Asset retirement obligations		7,271	7,271
Accrued liabilities		256,227	265,843
Accrued interest		41,975	35,340
Derivative liabilities		4,900	165,009
Total current liabilities		596,992	702,653
Bank debt		949,948	876,428
Senior notes		2,850,100	2,848,591
Senior subordinated notes		48,541	48,498
Deferred tax liabilities		1,114,583	943,343
Derivative liabilities		541	24,491
Deferred compensation liabilities		96,854	119,231
Asset retirement obligations and other liabilities		301,886	310,642
Total liabilities		5,959,445	5,873,877
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, 248,130,537 issued at June 30, 2017 and 247,174,903 issued at December 31, 2016		2,481	2,471
Common stock held in treasury, 14,967 shares at June 30, 2017 and 30,547 shares at December 31, 2016		(599)	(1,209)
Additional paid-in capital		5,547,579	5,524,423
Retained earnings (deficit)		112,430	(117,317)
Total stockholders’ equity		5,661,891	5,408,368
Total liabilities and stockholders’ equity		$ 11,621,336	$ 11,282,245

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