Other Income, Net

12 Months Ended

Dec. 31, 2016

Other Income and Expenses [Abstract]

Other Income, Net

Other Income (Expense), Net

Other income (expense), net for the years ended Dec. 31 consisted of the following:

(Thousands of Dollars)	2016			2015			2014
Interest income	$	129		$	129		$	246
Other nonoperating income	5			11			183
Insurance policy expense	(43		)	(40		)	(488		)
Other nonoperating expense	—			(106		)	—
Other income (expense), net	$	91		$	(6	)	$	(59	)