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Inventory
9 Months Ended
Sep. 30, 2012
Inventory, Net [Abstract]  
Inventory
Inventory
Carrying value of inventories consisted of $32.3 million and $18.9 million of refined petroleum products as of September 30, 2012 and December 31, 2011, respectively. Cost of inventory is determined on a first-in, first-out (“FIFO”) basis.