Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenue:
Revenue	$ 359,849	$ 276,948	$ 708,749	$ 592,563
Derivative gain (loss)	40,590	46,902	(45,089)	39,666
Total revenue	400,439	323,850	663,660	632,229
Operating expenses:
Purchased product costs	154,580	128,123	308,209	272,419
Derivative (gain) loss related to purchased product costs	(254)	(8,392)	19,140	4,997
Facility expenses	40,698	37,427	80,122	75,332
Derivative loss (gain) related to facility expenses	2,927	934	(84)	128
Selling, general and administrative expenses	18,580	16,419	40,292	37,927
Depreciation	37,201	29,818	71,565	58,005
Amortization of intangible assets	10,830	10,193	21,647	20,386
Loss on disposal of property, plant and equipment	2,373	188	4,472	179
Accretion of asset retirement obligations	290	69	377	212
Total operating expenses	267,225	214,779	545,740	469,585
Income from operations	133,214	109,071	117,920	162,644
Other (expense) income:
(Loss) earnings from unconsolidated affiliate	(216)	1,585	(755)	1,517
Interest income	63	377	152	763
Interest expense	(27,874)	(25,755)	(56,137)	(49,537)
Amortization of deferred financing costs and discount (a component of interest expense)	(1,443)	(2,280)	(2,871)	(4,892)
Derivative gain related to interest expense				1,871
Loss on redemption of debt			(43,328)
Miscellaneous income (expense), net	169	(9)	131	1,053
Income before provision for income tax	103,913	82,989	15,112	113,419
Provision for income tax expense (benefit):
Current	4,089	923	4,145	6,721
Deferred	10,619	15,098	(3,567)	13,726
Total provision for income tax	14,708	16,021	578	20,447
Net income	89,205	66,968	14,534	92,972
Net income attributable to non-controlling interest	(10,708)	(6,751)	(20,066)	(11,245)
Net income (loss) attributable to the Partnership	$ 78,497	$ 60,217	$ (5,532)	$ 81,727
Net income (loss) attributable to the Partnership's common unitholders per common unit (Note 14):
Basic (in dollars per unit)	$ 1.03	$ 0.84	$ (0.09)	$ 1.18
Diluted (in dollars per unit)	$ 1.03	$ 0.84	$ (0.09)	$ 1.18
Weighted average number of outstanding common units:
Basic (in units)	75,160	71,111	74,847	68,795
Diluted (in units)	75,266	71,298	74,847	68,889
Cash distribution declared per common unit (in dollars per unit)	$ 0.67	$ 0.64	$ 1.32	$ 1.28