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Other (Expense) Income, Net
 3 Months Ended
Mar. 31, 2017
Other Income and Expenses [Abstract]  
Other (Expense) Income, Net
Other (Expense) Income, Net

Other (expense) income, net consisted of the following:
 
 
Three Months Ended March 31
(Thousands of Dollars)
 
2017
 
2016
Interest income
 
$
143

 
$
124

Other nonoperating income
 
155

 
158

Insurance policy (expense) income
 
(49
)
 
170

Other nonoperating expense
 
(3
)
 
(3
)
Other (expense) income, net
 
$
246

 
$
449