Annual report pursuant to Section 13 and 15(d)

PLANT, PIPELINE AND EQUIPMENT

PLANT, PIPELINE AND EQUIPMENT

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]


Plant, pipeline and equipment include the following at December 31:
	2020		2019
	(thousands of dollars)
Platinum catalyst	$	1,580	$	1,580
Catalyst	4,325		4,095
Land	5,428		5,428
Plant, pipeline and equipment	270,149		258,651
Construction in progress	6,422		5,052
Total plant, pipeline and equipment	287,904		274,806
Less accumulated depreciation	(100,800)		(85,887)
Net plant, pipeline and equipment	$	187,104	$	188,919

Plant, pipeline and equipment serve as collateral for our amended and restated loan agreement with a domestic bank (see Note 13).

Interest capitalized for construction for 2020, 2019 and 2018 was approximately nil, nil and $0.7 million, respectively.

Labor capitalized for construction for 2020, 2019 and 2018 was approximately $0.6 million, $0.0 million and $2.3 million, respectively.

Catalyst amortization relating to the platinum catalyst which is included in cost of sales was approximately $1.2 million, $1.3 million and $0.1 million for 2020, 2019 and 2018, respectively.