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INVENTORIES (Tables)
 9 Months Ended
Sep. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of inventory
Our inventory amounts were as follows at the dates indicated (in thousands):
 
September 30,
2017
 
December 31,
2016
Liquid petroleum products (1)
$
210,747

 
$
337,424

Materials and supplies
22,666

 
19,379

Total inventories
$
233,413

 
$
356,803

                                                      
(1)
Ending inventory was 122.3 million and 198.2 million gallons of liquid petroleum products as of September 30, 2017 and December 31, 2016, respectively.