Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Summary Of Purchase And Sale Commitments

We account for derivatives at fair value with the exception of commitments which have been designated as normal purchases and sales for which we do not record assets or liabilities related to these agreements until the product is purchased or sold. At June 30, 2013, such commitments included the following (in thousands):

	Volume (Barrels)	Value
Fixed price purchases	150	$	13,434
Fixed price sales	150	$	14,318
Floating price purchases	18,933	$	1,772,366
Floating price sales	18,948	$	1,799,559