INVENTORIES AND SUPPLIES (Tables)

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory

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

	June 30, 2019		December 31, 2018
Oil and oil products	$	70,596	$	70,823
Supplies and drums	108,713		104,609
Solvent and solutions	10,173		10,657
Other	13,849		13,390
Total inventories and supplies	$	203,331	$	199,479