Other Income, Net (Tables)

3 Months Ended

Mar. 31, 2013

Other Income, Net [Abstract]

Other Income, Net

Other income, net consisted of the following:

	Three Months Ended March 31
(Thousands of Dollars)	2013			2012
Interest income	$	914		$	1,028
Other nonoperating income		882			568
Insurance policy expense		(219	)		(564	)
Other income, net	$	1,577		$	1,032