INVENTORIES AND SUPPLIES (Tables)

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories and supplies consisted of the following (in thousands):

	December 31, 2020		December 31, 2019
Oil and oil related products	$	76,209	$	75,408
Supplies and drums	120,007		115,128
Solvent and solutions	8,812		9,973
Other	15,470		14,235
Total inventories and supplies	$	220,498	$	214,744