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Inventories (Tables)
 3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories
Sand inventories consisted of the following:
 
March 31, 2019
 
December 31, 2018
Raw material
$
978

 
$
1,201

Work in progress
8,401

 
10,070

Finished goods
3,047

 
4,648

Spare parts
1,145

 
1,356

Total sand inventory
$
13,571

 
$
17,275

Wellsite proppant storage solutions inventory represents work in progress inventory related to existing arrangements at the time the Company acquired Quickthree and consisted of the following:
 
March 31, 2019
 
December 31, 2018
Work in progress
$
—

 
$
1,300

Total wellsite proppant storage solutions inventory
$
—

 
$
1,300

 
 
 
 
Total inventory
$
13,571

 
$
18,575