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Inventories (Notes)
9 Months Ended
Sep. 30, 2015
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
6. Inventories
Inventories were as follows:
 
September 30,
2015
 
December 31,
2014
 
(In thousands)
Lubricants
$
17,288

 
$
14,241

Refined products
156

 
242

Inventories
$
17,444

 
$
14,483