PLANT, PIPELINE AND EQUIPMENT (Tables)

9 Months Ended

Sep. 30, 2017

PLANT, PIPELINE AND EQUIPMENT [Abstract]

Plant, Pipeline and Equipment

Plant, pipeline and equipment consisted of the following:

	September 30, 2017			December 31, 2016
	(thousands of dollars)
Platinum catalyst metal	$	1,612		$	1,612
Land		5,428			5,376
Plant, pipeline and equipment		183,472			154,107
Construction in progress		42,930			33,391
Total plant, pipeline and equipment		233,442			194,486
Less accumulated depreciation		(61,394	)		(54,477	)
Net plant, pipeline and equipment	$	172,048		$	140,009