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Inventory (Tables)
 6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory at December 31, 2016 and June 30, 2017 was as follows (in thousands): 
 
December 31, 2016
 
June 30,
2017
Refined products
$
54,285

 
$
20,449

Transmix
28,319

 
35,415

Liquefied petroleum gases
24,868

 
43,442

Crude oil
20,839

 
13,566

Additives
6,067

 
6,579

Total inventory
$
134,378

 
$
119,451