PLANT, PIPELINE AND EQUIPMENT (Tables)

3 Months Ended

Mar. 31, 2018

PLANT, PIPELINE AND EQUIPMENT [Abstract]

Plant, Pipeline and Equipment

Plant, pipeline and equipment consisted of the following:

	March 31, 2018			December 31, 2017
	(thousands of dollars)
Platinum catalyst metal	$	1,612		$	1,612
Land		5,428			5,428
Plant, pipeline and equipment		188,529			186,946
Construction in progress		60,441			50,996
Total plant, pipeline and equipment		256,010			244,982
Less accumulated depreciation		(65,871	)		(63,240	)
Net plant, pipeline and equipment	$	190,139		$	181,742