Annual report pursuant to Section 13 and 15(d)

Inventories

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Inventories
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories Inventories consist of raw sand and processed sand available for sale, chemicals and other products sold as a bi-product of completion and production operations and supplies used in performing services. Inventory is stated at the lower of cost or net realizable value on an average cost basis. The Company assesses the valuation of its inventories based upon specific usage, future utility, obsolescence and other factors. A summary of the Company’s inventories is shown below (in thousands):
December 31,
2021 2020
Supplies $ 4,557  $ 6,312 
Raw materials 701  613 
Work in process 2,435  3,478 
Finished goods 673  1,617 
Total inventory $ 8,366  $ 12,020