Segment Information

9 Months Ended

Sep. 30, 2011

Segment Information [Abstract]

Segment Information

12.  SEGMENT INFORMATION

          We operate in two geographic segments, the U.S.  and Canada, where we are engaged in the exploration and production segment of the oil and gas industry.  Prior to the Crestwood Transaction, our processing and gathering segment provided natural gas gathering and processing services predominantly through KGS.  Revenue earned by KGS prior to the Crestwood Transaction for the gathering and processing of our gas was eliminated on a consolidated basis as is the GPT expense recognized by our producing properties.  We evaluate performance based on operating income and property and equipment costs incurred.

	Exploration & Production				Gathering &									Quicksilver
	U.S.		Canada		Processing			Corporate			Elimination			Consolidated
					(In thousands)
For the Three Months Ended September 30:
2011
Revenue	$	225,567	$	34,078	$	1,095		$	-		$	(847	)	$	259,893
DD&A		43,441		12,300		1,356			589			-			57,686
Operating income (loss)		72,783		23,982		(611	)		(28,173	)		-			67,981
Property and equipment costs incurred		128,531		35,926		587			5			-			165,049
2010
Revenue	$	204,389	$	28,609	$	31,590		$	-		$	(26,888	)	$	237,700
DD&A		33,963		10,676		7,387			516			-			52,542
Impairment expense		2,920		-		28,611			-						31,531
Operating income (loss)		93,266		7,850		(11,503	)		(24,521	)		-			65,092
Property and equipment costs incurred		100,678		20,140		12,209			1,056			-			134,083
	Exploration & Production				Gathering &									Quicksilver
	U.S.		Canada		Processing			Corporate			Elimination			Consolidated
					(In thousands)
For the Nine Months Ended September 30:
2011
Revenue	$	619,310	$	100,418	$	3,584		$	-		$	(2,786	)	$	720,526
DD&A		123,776		35,811		3,535			1,739			-			164,861
Impairment expense		-		49,063		-			-			-			49,063
Operating income (loss)		208,644		1,630		(927	)		(63,483	)		-			145,864
Property and equipment costs incurred		381,977		134,794		8,017			511			-			525,299
2010
Revenue	$	582,283	$	93,158	$	85,576		$	-		$	(72,589	)	$	688,428
DD&A		93,620		33,114		21,799			1,435			-			149,968
Impairment expense		2,920		-		28,611			-			-			31,531
Operating income (loss)		272,186		27,118		13,680			(63,180	)		-			249,804
Property and equipment costs incurred		424,962		55,274		49,160			3,023			-			532,419
Property, plant and equipment - net
September 30, 2011	$	2,664,338	$	600,192	$	97,863		$	14,412		$	-		$	3,376,805
December 31, 2010		2,403,038		581,775		68,390			14,642			-			3,067,845
Investment in equity affiliates
September 30, 2011	$	21,725	$	-	$	-		$	-		$	-		$	21,725
December 31, 2010		83,341		-		-			-			-			83,341