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Inventories
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories
Sand inventories consisted of the following:
 
September 30, 2018
 
December 31, 2017
Raw material
$
153

 
$
298

Work in progress
8,927

 
7,825

Finished goods
3,582

 
832

Spare parts
1,649

 
577

Total sand inventory
$
14,311

 
$
9,532

Wellsite storage solutions inventory represents work in progress inventory related to existing arrangements at the time the Company acquired Quickthree and consisted of the following:
 
September 30, 2018
 
December 31, 2017
Work in progress
$
2,091

 
$

Total wellsite storage solutions inventory
$
2,091

 
$

 
 
 
 
Total inventory
$
16,402

 
$
9,532