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Inventory (Notes)
9 Months Ended
Sep. 30, 2015
Inventory [Abstract]  
Inventory
Inventory

Inventories consisted of $5.0 million and $10.3 million of refined petroleum products as of September 30, 2015 and December 31, 2014, respectively. Cost of inventory is stated at the lower of cost or market, determined on a FIFO basis.