Other Income, Net

12 Months Ended

Dec. 31, 2014

Other Income and Expenses [Abstract]

Other Income, Net

Other (Expense) Income, Net

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

(Thousands of Dollars)	2014			2013			2012
Interest income	$	246		$	663		$	379
Other nonoperating income	183			9			36
Insurance policy expense	(488		)	(532		)	(369		)
Other (expense) income, net	$	(59	)	$	140		$	46