INVENTORIES AND SUPPLIES (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory

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

	March 31, 2016		December 31, 2015
Oil and oil products	$	36,196	$	33,603
Supplies and drums	79,035		78,132
Solvent and solutions	9,026		8,868
Modular camp accommodations	15,438		15,126
Other	15,073		13,792
Total inventories and supplies	$	154,768	$	149,521