DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details 2)	6 Months Ended
	Jun. 30, 2013 gal
Derivative Instruments And Hedging Activities
Number of derivative contracts	0
Derivatives NOT Designated as Hedging Instruments | Physical Fixed Price Derivative Contracts | Current Derivative Contract
Derivative Instruments And Hedging Activities
Volume	46,926,000
Derivatives NOT Designated as Hedging Instruments | Physical Index Derivative Contracts | Current Derivative Contract
Derivative Instruments And Hedging Activities
Volume	40,337,000
Derivatives NOT Designated as Hedging Instruments | Refined products | Futures Contracts | Current Derivative Contract
Derivative Instruments And Hedging Activities
Volume	27,423,000
Derivatives Designated as Hedging Instruments | Refined products | Futures Contracts | Current Derivative Contract
Derivative Instruments And Hedging Activities
Volume	46,284,000