Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

v3.7.0.1
Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Crude oil, refined products and blendstocks $ 25,083 $ 36,259
Crude oil consignment inventory (Note 5) 779 1,850
Materials and supplies 11,205 11,573
Total inventories $ 37,067 $ 49,682