Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Note [Abstract]

Changes in Accumulated Other Comprehensive Loss, Net of Tax

Changes in accumulated other comprehensive loss, net of tax, for the three and six months ended June 30, 2015 and 2014 were as follows:

	Gains and Losses on Cash Flow Hedges
(Thousands of Dollars)	Three Months Ended June 30, 2015			Three Months Ended June 30, 2014
Accumulated other comprehensive loss at April 1	$	(947	)	$	(1,118	)
Losses reclassified from net accumulated other comprehensive loss	43			42
Net current period other comprehensive income	43			42
Accumulated other comprehensive loss at June 30	$	(904	)	$	(1,076	)

	Gains and Losses on Cash Flow Hedges
(Thousands of Dollars)	Six Months Ended June 30, 2015			Six Months Ended June 30, 2014
Accumulated other comprehensive loss at Jan. 1	$	(989	)	$	(1,161	)
Losses reclassified from net accumulated other comprehensive loss	85			85
Net current period other comprehensive income	85			85
Accumulated other comprehensive loss at June 30	$	(904	)	$	(1,076	)

Reclassifications out of Accumulated Other Comprehensive Loss

Reclassifications from accumulated other comprehensive loss for the three and six months ended June 30, 2015 and 2014 were as follows:

	Amounts Reclassified from Accumulated Other Comprehensive Loss
(Thousands of Dollars)	Three Months Ended June 30, 2015				Three Months Ended June 30, 2014
Losses on cash flow hedges:
Interest rate derivatives	$	67		(a)	$	66		(a)
Total, pre-tax	67				66
Tax benefit	(24		)		(24		)
Total amounts reclassified, net of tax	$	43			$	42

	Amounts Reclassified from Accumulated Other Comprehensive Loss
(Thousands of Dollars)	Six Months Ended June 30, 2015				Six Months Ended June 30, 2014
Losses on cash flow hedges:
Interest rate derivatives	$	133		(a)	$	133		(a)
Total, pre-tax	133				133
Tax benefit	(48		)		(48		)
Total amounts reclassified, net of tax	$	85			$	85

^(a)  Included in interest charges.