Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2011

	Assets				Liabilities
Derivative contracts not designated as hedging instruments and their balance sheet location	Fair Value at December 31, 2011		Fair Value at December 31, 2010		Fair Value at December 31, 2011			Fair Value at December 31, 2010
Commodity contracts(1)
Fair value of derivative instruments—current	$	8,698	$	4,345	$	(90,551	)	$	(65,489	)
Fair value of derivative instruments—long-term		16,092		417		(65,403	)		(66,290	)

Total	$	24,790	$	4,762	$	(155,954	)	$	(131,779	)

(1): Includes Embedded Derivatives in Commodity Contracts as discussed below.

	Year ended December 31,

Derivative contracts not designated as hedging instruments and the location of gain or (loss) recognized in income	2011			2010			2009
Revenue: Derivative loss
Realized (loss) gain	$	(48,093	)	$	(33,560	)	$	87,289
Unrealized gain (loss)		19,058			(20,372	)		(207,641	)

Total revenue: derivative loss		(29,035	)		(53,932	)		(120,352	)

Derivative loss related to purchased product costs
Realized loss		(27,711	)		(21,909	)		(53,052	)
Unrealized loss		(25,249	)		(5,804	)		(15,831	)

Total derivative loss related to purchase product costs		(52,960	)		(27,713	)		(68,883	)

Derivative gain related to facility expenses
Unrealized gain		6,480			1,295			373
Derivative gain related to interest expense
Realized gain		—			2,380			2,000
Unrealized (loss) gain		—			(509	)		509

Total derivative gain related to interest expense		—			1,871			2,509

Miscellaneous income, net
Unrealized gain		—			190			336

Total loss	$	(75,515	)	$	(78,289	)	$	(186,017	)

Derivative contracts not designated as hedging instruments	Position

Crude Oil (bbl)	Short	8,244,902
Natural Gas (MMBtu)	Long	16,021,887
NGLs (gal)	Short	86,563,841


Fair value of commodity contract	$	114,928
Inception value for period from April 1, 2015 to December 31, 2022.		(53,507	)

Derivative liability as of December 31, 2011	$	61,421