Derivative Instruments And Hedging Activities Derivatives and Hedging Instruments Gains Losses due to Settlements Hedge Ineffectiveness (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Trading Activity, Gains and Losses, Net [Line Items]
Change in Fair Value Recognized in Other Comprehensive Income (Loss), Effective Portion	$ (10,404)	$ (140,121)
Gain (Loss) on Sale of Derivatives	(27,290)	16,416
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	2,410	(1,330)
(Gain) Loss Reclassified to Earnings Due to Settlements	27,200	(16,416)
Amortization Of Unrealized Gain (Loss) Attributable To Discontinued Commodity Hedges	90
Amortization of unrealized loss attributable to discontinued cash flow hedges	939	1,274
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	16,886	(156,537)
Cost of Sales [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) on Sale of Derivatives	(6,532)	50,541
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	3,131
Operating Expense [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	(365)
Amortization of unrealized loss attributable to discontinued cash flow hedges	(1,573)
Revenues (decrease) [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) on Sale of Derivatives	(19,185)	(34,125)
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	(356)	(1,330)
HEP [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Amortization of unrealized loss attributable to discontinued cash flow hedges	$ 849	$ 1,274