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Inventory (Tables)
 3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
Components of Inventory
Total inventory consists of the following:
 
March 31, 2018
 
December 31, 2017
 
(In thousands)
Inventory
 
 
 
Crude oil inventory
$
10,390

 
$
10,427

Equipment and materials
12,649

 
8,940

Total inventory
$
23,039

 
$
19,367

 
 
 
 
Long-term inventory
 
 
 
Linefill in third-party pipelines
$
12,506

 
$
12,200

Long-term inventory
$
12,506

 
$
12,200

 
 
 
 
Total
$
35,545

 
$
31,567
Components of Long-term Inventory
Total inventory consists of the following:
 
March 31, 2018
 
December 31, 2017
 
(In thousands)
Inventory
 
 
 
Crude oil inventory
$
10,390

 
$
10,427

Equipment and materials
12,649

 
8,940

Total inventory
$
23,039

 
$
19,367

 
 
 
 
Long-term inventory
 
 
 
Linefill in third-party pipelines
$
12,506

 
$
12,200

Long-term inventory
$
12,506

 
$
12,200

 
 
 
 
Total
$
35,545

 
$
31,567