Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2012

Derivative Financial Instruments [Abstract]

Schedule Of Forward Purchase And Sales Contracts

	Amount		Barrels
Forward purchase contracts	$	55.3	0.6
Forward sales contracts	$	44.4	0.3

Schedule Of Derivative Instruments

Hedge Type	Hedge Purpose	Accounting Treatment
Qualifies for Hedge Accounting Treatment
Cash Flow Hedge	To hedge the variability in cash flows related to a forecasted transaction.	The effective portion of changes in the value of the hedge are recorded to accumulated other comprehensive income/loss and reclassified to earnings when the forecasted transaction occurs. Any ineffectiveness is recognized currently in earnings.
Fair Value Hedge	To hedge against changes in the fair value of a recognized asset or liability.	The effective portion of changes in the value of the hedge are recorded as adjustments to the asset or liability being hedged. Any ineffectiveness is recognized currently in earnings.
Does not Qualify For Hedge Accounting Treatment
Economic Hedge	To effectively serve as either a fair value or a cash flow hedge; however, the derivative agreement does not qualify for hedge accounting treatment or is not designated as a hedge in accordance with Accounting Standards Codification ("ASC") 815, Derivatives and Hedging.	Changes in the value of these agreements are recognized currently in earnings.

Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements

Type of Contract/Accounting Methodology	Product Represented by the Contract and Associated Barrels	Maturity Dates
NYMEX - Fair Value Hedges	0.7 million barrels of crude oil	Between June 2012 and November 2013
NYMEX - Economic Hedges	2.4 million barrels of refined petroleum products	Between April and December 2012
Butane Swap Agreements - Economic Hedges	25 thousand barrels of butane	August 2012

Derivative Gains Included In Accumulated Other Comprehensive Loss (AOCL)

	Three Months Ended March 31,
Derivative Gains Included in AOCL	2011			2012
Beginning balance	$	3,325		$	3,161
Reclassification of net gain on cash flow hedges to interest expense		(41	)		(41	)
Ending balance	$	3,284		$	3,120

Derivatives And Hedging-Fair Value Hedges

		Amount of Gain Recognized on Derivative				Amount of Interest Expense Recognized on Fixed-Rate Debt (Related Hedged Item)
	Location of Gain Recognized on Derivative	Three Months Ended March 31,				Three Months Ended March 31,
Derivative Instrument		2011		2012		2011		2012
Interest rate swap agreements	Interest expense	$	203	$	—	$	2,222	$	—

Derivatives And Hedging-Cash Flow Hedges

	Three Months Ended March 31, 2011
Derivative Instrument	Amount of Gain (Loss) Recognized in AOCL on Derivative		Location of Gain (Loss) Reclassified from AOCL into Income	Amount of Gain (Loss) Reclassified from AOCL into Income
Interest rate swap agreements	$	—	Interest expense	$	41

	Three Months Ended March 31, 2012
Derivative Instrument	Amount of Gain (Loss) Recognized in AOCL on Derivative		Location of Gain (Loss) Reclassified from AOCL into Income	Amount of Gain (Loss) Reclassified from AOCL into Income
Interest rate swap agreements	$	—	Interest expense	$	41

Derivatives And Hedging-Overall-Subsequent Measurement

			Amount of Gain (Loss)
			Recognized on Derivative
			Three Months Ended
	Location of Gain (Loss)
Derivative Instrument	Recognized on Derivative		March 31, 2011		March 31, 2012
NYMEX commodity contracts	Product sales revenues	$	(38,333	)	$	(31,976	)
NYMEX commodity contracts	Operating expenses		(47	)		(5,184	)
Butane swap agreements	Product purchases		—			43
	Total	$	(38,380	)	$	(37,117	)

Derivatives And Hedging-Designated

 

			Amount of Gain (Loss)
			Recognized on Derivative
			Three Months Ended
	Location of Gain (Loss)
Derivative Instrument	Recognized on Derivative		March 31, 2011		March 31, 2012
NYMEX commodity contracts	Product sales revenues	$	(38,333	)	$	(31,976	)
NYMEX commodity contracts	Operating expenses		(47	)		(5,184	)
Butane swap agreements	Product purchases		—			43
	Total	$	(38,380	)	$	(37,117	)

     The following tables provide a summary of the amounts included on our consolidated balance sheets of the fair value of derivatives accounted for under ASC 815, Derivatives and Hedging, that were designated as hedging instruments as of December 31, 2011 andMarch 31, 2012 (in thousands):

			December 31, 2011
	Asset Derivatives			Liability Derivatives
Derivative Instrument	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
	Energy commodity derivatives			Energy commodity derivatives
NYMEX commodity contracts	contracts	$	31	contracts	$	—
NYMEX commodity contracts	Other noncurrent assets		—	Other noncurrent liabilities		6,457
	Total	$	31	Total	$	6,457

			March 31, 2012
	Asset Derivatives			Liability Derivatives
Derivative Instrument	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
	Energy commodity derivatives			Energy commodity derivatives
NYMEX commodity contracts	contracts	$	169	contracts	$	—
NYMEX commodity contracts	Other noncurrent assets		—	Other noncurrent liabilities		11,744
	Total	$	169	Total	$	11,744

Derivatives And Hedging-Nondesignated

	December 31, 2011
	Asset Derivatives			Liability Derivatives
Derivative Instrument	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
NYMEX commodity contracts	Energy commodity derivatives contracts	$	6,403	Energy commodity derivatives contracts	$	1,514
Butane swap agreements	Energy commodity derivatives contracts		28	Energy commodity derivatives contracts		34
	Total	$	6,431	Total	$	1,548

	March 31, 2012
	Asset Derivatives			Liability Derivatives
Derivative Instrument	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
NYMEX commodity contracts	Energy commodity derivatives contracts	$	3,414	Energy commodity derivatives contracts	$	8,230
Butane swap agreements	Energy commodity derivatives contracts		—	Energy commodity derivatives contracts		7
	Total	$	3,414	Total	$	8,237