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INVENTORIES AND SUPPLIES
 6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
INVENTORIES AND SUPPLIES INVENTORIES AND SUPPLIES
Inventories and supplies consisted of the following (in thousands):
June 30, 2020December 31, 2019
Oil and oil related products$77,117  $75,408  
Supplies and drums118,086  115,128  
Solvent and solutions10,553  9,973  
Other14,052  14,235  
Total inventories and supplies$219,808  $214,744  
Supplies and drums consist primarily of drums and containers used in providing the Company's products and services, critical spare parts to support the Company's incinerator and re-refinery operations and personal protective equipment. Other inventories consisted primarily of parts washer components, cleaning fluids, absorbents and automotive fluids, such as windshield washer fluid and antifreeze