Summary Of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Schedule of Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive loss, net of tax, consisted of the following as of March 31, 2016 and December 31, 2015 (dollars in thousands):



	March 31,		December 31,
	2016		2015
Unfunded benefit obligation for pensions and other postretirement benefit plans - net of taxes of $4,243 and $3,580, respectively	$	7,879	$	6,650

Reclassifications Out of Accumulated Other Comprehensive Loss by Component

The following table details the reclassifications out of accumulated other comprehensive loss by component for the three months ended March 31 (dollars in thousands). Items in parenthesis indicate reductions to net income.



	Amounts Reclassified from Accumulated Other Comprehensive Loss
Details about Accumulated Other Comprehensive Loss Components	2016			2015			Affected Line Item in Statement of Income
Amortization of defined benefit pension items
Amortization of net prior service cost	$	311		$	273		(a)
Amortization of net loss	(3,642		)	(3,688		)	(a)
Adjustment due to effects of regulation	5,223			3,037			(a) (b)
	1,892			(378		)	Total before tax
	(663		)	132			Tax expense (benefit)
	$	1,229		$	(246	)	Net of tax


(a)	These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 5 for additional details).

Utility Taxes

Utility related taxes collected from customers (primarily state excise taxes and city utility taxes) are recorded as operating revenue and expense. Taxes other than income taxes consisted of the following items for the three months ended March 31 (dollars in thousands):



	2016		2015
Utility related taxes	$	18,365	$	19,498
Property taxes	10,420		9,686
Other taxes	600		714
Total	$	29,385	$	29,898

Other Income - Net

Other income-net consisted of the following items for the three months ended March 31 (dollars in thousands):



	2016			2015
Interest income	$	540		$	263
Equity-related AFUDC	2,261			2,215
Other income (loss)	(379		)	(247		)
Total	$	2,422		$	2,231

Materials And Supplies Fuel Stock And Natural Gas Stored

Inventories of materials and supplies, fuel stock and stored natural gas are recorded at average cost for our regulated operations and the lower of cost or net realizable value for our non-regulated operations and consisted of the following as of March 31, 2016 and December 31, 2015 (dollars in thousands):



	March 31,		December 31,
	2016		2015
Materials and supplies	$	38,718	$	37,101
Fuel stock	4,254		4,273
Stored natural gas	913		12,774
Total	$	43,885	$	54,148

Appropriated Retained Earnings [Table Text Block]

The appropriated retained earnings amounts included in retained earnings were as follows as of March 31, 2016 and December 31, 2015 (dollars in thousands):



	March 31,		December 31,
	2016		2015
Appropriated retained earnings	$	21,030	$	21,030