Discontinued Operations and Assets Held for Sale (Tables)

12 Months Ended

Dec. 31, 2017

Discontinued Operations and Assets Held for Sale [Abstract]

Major Categories of Assets and Liabilities Reflected as Held for Sale

(Thousands of dollars)	2017		2016
Current assets
Cash	$	16,631	4,126
Accounts receivable		6,298	22,944
Other		–	–
Total current assets held for sale	$	22,929	27,070
Current liabilities
Accounts payable	$	837	270
Accrued compensation and severance		–	–
Refinery decommissioning cost		2,693	2,506
Total current liabilities associated with assets held for sale	$	3,530	2,776
Non-current liabilities
Asset retirement obligation – Seal asset	$	–	85,900

Results of Operations Associated with Discontinued Operations

(Thousands of dollars)	2017		2016	2015
Revenues	$	854	1,464	381,747
Loss from operations before income taxes	$	(853)	(2,027)	(6,758)
Loss on sale before income taxes		–	–	(4,990)
Total loss from discontinued operations before taxes		(853)	(2,027)	(11,748)
Income tax expense		–	–	3,313
Loss from discontinued operations	$	(853)	(2,027)	(15,061)