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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2015
Goodwill [Abstract]  
Schedule of Goodwill [Table Text Block]
A summary of our goodwill accounts is as follows (in thousands):

 
 
Wholesale Marketing and Terminalling
 
Pipelines and Transportation
 
Total
Balance,
December 31, 2012
$
7,499

 
$
2,955

 
$
10,454

Acquisitions
—

 
1,200

 
1,200

Balance,
December 31, 2013
7,499

 
4,155

 
11,654

Balance,
December 31, 2014
7,499

 
4,155

 
11,654

Acquisitions
—

 
549

 
$
549

Balance,
December 31, 2015
$
7,499

 
$
4,704

 
$
12,203