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Inventories (Tables)
 12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories were as follows:
 
December 31,
 
2016
 
2015
 
(In thousands)
Lubricants
$
—

 
$
14,959

Refined products
68

 
241

Inventories
$
68

 
$
15,200

Assets held for sale in our Consolidated Balance Sheet at December 31, 2016 include $10.1 million in lubricant inventories. See Note 4, Segment Information, for further discussion.