Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2015

Long-term Purchase Commitment [Line Items]

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 September 30, 2015, such commitments included the following (in thousands):

	Volume (Barrels)	Value
Fixed price purchases	2,635	$	116,683
Fixed price sales	3,485	$	156,359
Floating price purchases	17,683	$	797,546
Floating price sales	22,268	$	915,732

Long-term Purchase Commitment [Table Text Block]

The approximate amount of future obligation is as follows (in thousands):

For year ending:
December 31, 2015	$	2,705
December 31, 2016	11,804
December 31, 2017	11,938
December 31, 2018	10,060
December 31, 2019	9,121
Thereafter	24,392
Total expected future payments	$	70,020