Discontinued Operations and Assets Held for Sale (Tables)

6 Months Ended

Jun. 30, 2018

Discontinued Operations and Assets Held for Sale [Abstract]

Results of Operations Associated with Discontinued Operations

	Three Months			Six Months
	Ended June 30,			Ended June 30,
(Thousands of dollars)		2018	2017	2018	2017
Revenues	$	6	126	6	256
Income (loss) before income taxes		(398)	(217)	(835)	752
Income tax benefit		–	–	–	–
Income (loss) from discontinued operations	$	(398)	(217)	(835)	752

Major Categories of Assets and Liabilities Reflected as Held for Sale

		June 30,	December 31,
(Thousands of dollars)		2018	2017
Current assets
Cash	$	14,609	16,631
Accounts receivable		7,058	6,298
Total current assets held for sale	$	21,667	22,929
Current liabilities
Accounts payable	$	488	837
Refinery decommissioning cost		2,658	2,693
Total current liabilities associated with assets held for sale	$	3,146	3,530