INVENTORIES AND SUPPLIES (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory

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

	September 30, 2017		December 31, 2016
Oil and oil products	$	57,602	$	52,158
Supplies and drums	93,654		90,610
Solvent and solutions	8,680		8,566
Modular camp accommodations	1,945		15,255
Other	11,216		11,839
Total inventories and supplies	$	173,097	$	178,428