CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents		$ 529	$ 314
Accounts receivable, less allowance for doubtful accounts of $6,609 and $5,559		285,166	241,718
Derivative assets		30,176	13,278
Inventory and other		21,379	26,573
Total current assets		337,250	281,883
Derivative assets		512	205
Goodwill		1,641,197	1,654,292
Natural gas and oil properties, successful efforts method	[1]	13,061,390	12,386,153
Accumulated depletion and depreciation	[1]	(3,492,614)	(3,129,816)
Natural gas and oil properties, successful efforts method, net	[1]	9,568,776	9,256,337
Other property and equipment		114,073	112,796
Accumulated depreciation and amortization		(98,469)	(95,923)
Other Property and equipment, net		15,604	16,873
Other assets		74,400	72,655
Total assets		11,637,739	11,282,245
Current liabilities:
Accounts payable		317,112	229,190
Asset retirement obligations		7,271	7,271
Accrued liabilities		277,355	265,843
Accrued interest		37,095	35,340
Derivative liabilities		32,533	165,009
Total current liabilities		671,366	702,653
Bank debt		1,082,708	876,428
Senior notes		2,850,692	2,848,591
Senior subordinated notes		48,562	48,498
Deferred tax liabilities		1,042,889	943,343
Derivative liabilities		16,292	24,491
Deferred compensation liabilities		91,014	119,231
Asset retirement obligations and other liabilities		296,736	310,642
Total liabilities		6,100,259	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, 248,138,258 issued at September 30, 2017 and 247,174,903 issued at December 31, 2016		2,481	2,471
Common stock held in treasury, 14,967 shares at September 30, 2017 and 30,547 shares at December 31, 2016		(599)	(1,209)
Additional paid-in capital		5,555,830	5,524,423
Retained earnings (deficit)		(20,232)	(117,317)
Total stockholders’ equity		5,537,480	5,408,368
Total liabilities and stockholders’ equity		$ 11,637,739	$ 11,282,245

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