STATEMENTS OF CASH FLOWS (Tables)

12 Months Ended

Dec. 31, 2016

Statement of Cash Flows [Abstract]

Changes in current assets and current liabilities

Changes in current assets and current liabilities were as follows:

	Year Ended December 31,
	2016			2015			2014
	(Thousands of Dollars)
Decrease (increase) in current assets:
Receivable from related party, net	$	(993	)	$	1,134		$	105
Income tax receivable	909			(1		)	(13		)
Other receivables	(32		)	22			(14		)
Other current assets	(117		)	(8		)	(407		)
Increase (decrease) in current liabilities:
Accounts payable	(222		)	16			296
Accrued compensation expense	(1,339		)	(954		)	(2,374		)
Accrued liabilities	120			(97		)	(99		)
Taxes other than income tax	(1,662		)	184			236
Changes in current assets and current liabilities	$	(3,336	)	$	296		$	(2,270	)

Cash flows related to interest and income tax

Cash flows related to interest and income tax were as follows:

	Year Ended December 31,
	2016			2015			2014
	(Thousands of Dollars)
Cash paid for interest	$	890		$	736		$	684
Cash refunded for income tax, net	$	(900	)	$	(50	)	$	(1,149	)