Derivative and Hedging Instruments (Tables)

9 Months Ended

Sep. 30, 2012

Derivative and Hedging Instruments (Tables) [Abstract]

Gross Notional Volume of Open Derivatives

	September 30, 2012	December 31, 2011
Commodity derivative contracts	440,320 MWh	482,545 MWh
Commodity derivative contracts	4,170,000 Dth	4,030,000 Dth
FTRs	4,069 MW	2,382 MW

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
September 30, 2012
Commodity derivative contracts	Other current assets	$	1,463	Derivative liability (current)	$	245
Commodity derivative contracts	Other deferred charges		114	Derivative liability (long-term)		60
FTRs	Other current assets		561	Derivative liability (current)		0
Ten-year PPA	N/A		N/A	Derivative liability (current)		9,600
Ten-year PPA	N/A		N/A	Derivative liability (long-term)		67,490
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
Three Months Ended September 30:
Balance at July 1,	$	79,362	$	718	$	22,604	$	1,001
Change in unrealized loss		(468)		0		3,839		0
Realized loss reclassified to a deferred account		(223)		223		(210)		210
Realized gain (loss) reclassified to income
statement		(3,414)		(161)		350		(233)
Balance at September 30,	$	75,257	$	780	$	26,583	$	978
Nine Months Ended September 30:
Balance at January 1,	$	42,356	$	1,604	$	19,230	$	1,411
Change in unrealized loss		42,633		0		7,775		0
Realized loss reclassified to a deferred account		(3,103)		3,103		(1,484)		1,484
Realized gain (loss) reclassified to income
statement		(6,629)		(3,927)		1,062		(1,917)
Balance at September 30,	$	75,257	$	780	$	26,583	$	978

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
Three Months Ended September 30, 2012:
Commodity derivative contracts	$	0	$	176	$	0
FTRs		0		(256)		0
Ten-year PPA		0		3,655		0
Three Months Ended September 30, 2011:
Commodity derivative contracts	$	0	$	(94)	$	0
FTRs		0		(23)		0
Ten-year PPA		0		0		0
Nine Months Ended September 30, 2012:
Commodity derivative contracts	$	0	$	2,685	$	3,090
FTRs		0		(93)		0
Ten-year PPA		0		4,874		0
Nine Months Ended September 30, 2011:
Commodity derivative contracts	$	0	$	(465)	$	1,315
FTRs		0		5		0
Ten-year PPA		0		0		0