Derivative and Hedging Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Derivative and Hedging Instruments (Tables) [Abstract]

Gross Notional Volume of Open Derivatives

	December 31, 2012	December 31, 2011
Commodity derivative contracts	444,650MWh	482,545MWh
Commodity derivative contracts	1,980,000Dth	4,030,000Dth
FTRs	2,670MW	2,382MW

Fair Value of Derivative Instruments on the Balance Sheet

	Asset Derivatives			Liability Derivatives
(In thousands)	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
December 31, 2012
Commodity derivative contracts	Other current assets	$	365	Derivative liability (current)	$	394
Commodity derivative contracts	Other deferred charges		95	Derivative liability (long-term)		11
FTRs	Other current assets		206	Derivative liability (current)		0
Ten-year PPA	N/A		N/A	Derivative liability (current)		9,270
Ten-year PPA	N/A		N/A	Derivative liability (long-term)		63,320
December 31, 2011
Commodity derivative contracts	Other current assets	$	177	Derivative liability (current)	$	3,060
Commodity derivative contracts	Other deferred charges		92	Derivative liability (long-term)		231
FTRs	Other current assets		186	Derivative liability (current)		0
Ten-year PPA	N/A		N/A	Derivative liability (current)		4,600
Ten-year PPA	N/A		N/A	Derivative liability (long-term)		34,920

Derivative Gains and Losses in Balance Sheet

		2012				2011
(In thousands)		Current and Long-Term Regulatory Asset		Other Current Assets		Current and Long-Term Regulatory Asset		Other Current Assets
Year Ended December 31:
Balance at January 1,	$	42,356	$	1,604	$	19,230	$	1,411
Change in unrealized loss		37,822		0		24,988		0
Realized loss reclassified to a deferred account		(2,857)		2,857		(3,190)		3,190
Realized gain (loss) reclassified to income statement		(4,992)		(3,887)		1,328		(2,997)
Balance at December 31,	$	72,329	$	574	$	42,356	$	1,604

Derivative Gains and Losses in Income Statement

		Realized losses (gains)
				Fuel for Electric
		Regulated		Generation/		Cost of
(In thousands)		Gas Revenues		Purchased Power		Gas Sold
Year Ended December 31, 2012:
Commodity derivative contracts	$	0	$	2,620	$	3,072
FTRs		0		(45)		0
Ten-year PPA		0		3,232		0
Year Ended December 31, 2011:
Commodity derivative contracts	$	0	$	(258)	$	2,194
FTRs		0		(267)		0
Ten-year PPA		0		0		0