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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following:
(In thousands)September 30, 2021December 31, 2020
Raw materials:  
Fluids Systems$110,522 $98,974 
Industrial Solutions4,864 6,315 
Total raw materials115,386 105,289 
Blended fluids systems components26,906 31,744 
Finished goods - mats5,902 10,824 
Total inventories$148,194 $147,857 
Raw materials for the Fluids Systems segment consists primarily of barite, chemicals, and other additives that are consumed in the production of our fluids systems. Raw materials for the Industrial Solutions segment consists primarily of resins, chemicals, and other materials used to manufacture composite mats and cleaning products, as well as materials that are consumed in providing spill containment and other services to our customers. Our blended fluids systems components consist of base fluids systems that have been either mixed internally at our blending facilities or purchased from third-party vendors. These base fluids systems require raw materials to be added, as needed to meet specified customer requirements.