PLANT, PIPELINE AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2017

PLANT, PIPELINE AND EQUIPMENT [Abstract]

Plant, Pipeline and Equipment

Plant, pipeline and equipment consisted of the following:

	June 30, 2017			December 31, 2016
	(thousands of dollars)
Platinum catalyst metal	$	1,612		$	1,612
Land		5,386			5,376
Plant, pipeline and equipment		168,640			154,107
Construction in progress		46,538			33,391
Total plant, pipeline and equipment		222,176			194,486
Less accumulated depreciation		(58,994	)		(54,477	)
Net plant, pipeline and equipment	$	163,182		$	140,009