Other Comprehensive Income

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Other Comprehensive Income

Other Comprehensive Income

Changes in accumulated other comprehensive loss, net of tax, for the three months ended March 31, 2016 and 2015 were as follows:

	Three Months Ended March 31, 2016
(Thousands of Dollars)	Gains and Losses on Cash Flow Hedges			Defined Benefit and Postretirement Items			Total
Accumulated other comprehensive loss at Jan. 1	$	(817	)	$	(464	)	$	(1,281	)
Other comprehensive loss before reclassifications	—			12			12
Losses reclassified from net accumulated other comprehensive loss	42			—			42
Net current period other comprehensive loss	42			12			54
Accumulated other comprehensive loss at March 31	$	(775	)	$	(452	)	$	(1,227	)

	Three Months Ended March 31, 2015
(Thousands of Dollars)	Gains and Losses on Cash Flow Hedges
Accumulated other comprehensive loss at Jan. 1	$	(989	)
Losses reclassified from net accumulated other comprehensive loss	42
Net current period other comprehensive loss	42
Accumulated other comprehensive loss at March 31	$	(947	)

Reclassifications from accumulated other comprehensive loss for the three months ended March 31, 2016 and 2015 were as follows:

	Amounts Reclassified from Accumulated Other Comprehensive Loss
(Thousands of Dollars)	Three Months Ended March 31, 2016				Three Months Ended March 31, 2015
Losses on cash flow hedges:
Interest rate derivatives	$	67		(a)	$	66		(a)
Total, pre-tax	67				66
Tax benefit	(25		)		(24		)
Total amounts reclassified, net of tax	$	42			$	42

^(a)  Included in interest charges.