Segment Information (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting Information

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Net external sales
Olefins
Polyethylene	$	398,023		$	467,851		$	843,443		$	914,554
Ethylene, styrene and other		274,696			177,464			561,547			335,841
Total Olefins		672,719			645,315			1,404,990			1,250,395
Vinyls
PVC, caustic soda and other		163,623			193,311			378,006			385,168
Building products		77,616			86,423			165,829			156,738
Total Vinyls		241,239			279,734			543,835			541,906
	$	913,958		$	925,049		$	1,948,825		$	1,792,301
Intersegment sales
Olefins	$	69,443		$	112,174		$	170,900		$	218,444
Vinyls		388			404			776			724
	$	69,831		$	112,578		$	171,676		$	219,168
Income (loss) from operations
Olefins	$	155,891		$	132,767		$	285,098		$	278,023
Vinyls		22,583			10,290			43,665			7,442
Corporate and other		(7,496	)		(4,688	)		(12,160	)		(6,459	)
	$	170,978		$	138,369		$	316,603		$	279,006
Depreciation and amortization
Olefins	$	24,070		$	21,608		$	47,833		$	43,252
Vinyls		11,589			11,041			23,098			21,815
Corporate and other		124			156			246			316
	$	35,783		$	32,805		$	71,177		$	65,383
Other income (expense), net
Olefins	$	1,001		$	904		$	1,957		$	1,084
Vinyls		(272	)		(30	)		(31	)		481
Corporate and other		378			758			528			1,274
	$	1,107		$	1,632		$	2,454		$	2,839
Provision for (benefit from) income taxes
Olefins	$	52,345		$	45,247		$	94,520		$	93,538
Vinyls		6,417			2,723			12,433			570
Corporate and other		2,203			(1,820	)		994			(2,578	)
	$	60,965		$	46,150		$	107,947		$	91,530
Capital expenditures
Olefins	$	27,821		$	15,450		$	45,302		$	33,399
Vinyls		45,994			22,376			92,834			35,007
Corporate and other		1,851			697			2,432			772
	$	75,666		$	38,523		$	140,568		$	69,178

Reconciliation Of Total Segment Income From Operations To Consolidated Income Before Income Taxes

A reconciliation of total segment income from operations to consolidated income before income taxes is as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Income from operations	$	170,978		$	138,369		$	316,603		$	279,006
Interest expense		(11,571	)		(12,802	)		(23,748	)		(25,722	)
Gain from sales of equity securities		15,952			—			15,952			—
Other income, net		1,107			1,632			2,454			2,839
Income before income taxes	$	176,466		$	127,199		$	311,261		$	256,123

Total Assets

	June 30, 2012		December 31, 2011
Total assets
Olefins	$	1,371,679	$	1,441,752
Vinyls		905,699		824,825
Corporate and other		1,164,560		1,000,244
	$	3,441,938	$	3,266,821