Other Income, Net (Tables)

6 Months Ended

Jun. 30, 2017

Other Income and Expenses [Abstract]

Other Income, Net

Other income, net consisted of the following:

	Three Months Ended June 30					Six Months Ended June 30
(Thousands of Dollars)	2017			2016		2017			2016
Interest income	$	147		$	94	$	192		$	179
Other nonoperating income (expense)	1			298		(1		)	247
Insurance policy expense	(12		)	—		(24		)	—
Other income, net	$	136		$	392	$	167		$	426