Summarized Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Summarized Quarterly Financial Information Disclosure [Abstract]

Schedule Of Quarterly Financial Information Table Text Block

		2014
		1st Quarter		2nd Quarter		3rd Quarter		4th Quarter		Total
Revenues from continuing operations	$	326,299	$	296,063	$	288,608	$	319,050	$	1,230,020
(Loss) gain on commodity derivatives		(45,273)		(15,102)		32,052		110,725		82,402
Expenses from continuing operations		154,829		150,850		169,669		195,083		670,431
Interest expense		27,068		27,294		29,599		42,196		126,157
Gain on sale of property		-		-		-		8,022		8,022
Other income (expense), net		2,590		2,688		2,582		5,311		13,171
Income before income tax provision (benefit)		101,719		105,505		123,974		205,829		537,027
Income tax provision (benefit)		4		(544)		(1,383)		(3,901)		(5,824)
Net income	$	101,715	$	106,049	$	125,357	$	209,730	$	542,851
Net income per common share - basic	$	0.66	$	0.69	$	0.82	$	1.37	$	3.54
Net income per common share - fully diluted	$	0.66	$	0.68	$	0.81	$	1.36	$	3.51
		2013
		1st Quarter		2nd Quarter		3rd Quarter		4th Quarter		Total
Revenues from continuing operations	$	225,626	$	261,376	$	221,205	$	225,197	$	933,404
Gain (loss) on commodity derivatives		(44,715)		22,091		2,074		(26,204)		(46,754)
Expenses from continuing operations		139,994		143,002		136,389		141,753		561,138
Interest expense		25,764		25,238		25,174		25,310		101,486
Other income (expense), net		2,648		2,641		2,575		2,332		10,196
Income before income tax provision (benefit)		17,801		117,868		64,291		34,262		234,222
Income tax provision (benefit)		1,368		1,491		381		(6,856)		(3,616)
Net income	$	16,433	$	116,377	$	63,910	$	41,118	$	237,838
Net income per common share - basic	$	0.11	$	0.76	$	0.42	$	0.27	$	1.55
Net income per common share - fully diluted	$	0.11	$	0.75	$	0.41	$	0.27	$	1.54