Financial Instruments And Investments (Tables)

6 Months Ended

Jun. 30, 2011

Financial Instruments And Investments

Fair Values Of Long-Term Debt And Financing Obligations


	June 30, 2011				December 31, 2010
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Pollution Control Bonds	$	193,135	$	197,570	$	193,135	$	192,924
Senior Notes		546,636		591,490		546,610		574,700
RGRT Senior Notes (1)		110,000		113,239		110,000		110,371
RCF (1)		39,642		39,642		4,704		4,704

Total	$	889,413	$	941,941	$	854,449	$	882,699

(1)

Nuclear fuel financing as of June 30, 2011 is funded through the $110 million RGRT Senior Notes and $13.6 million under the RCF. The Company also had $26.0 million outstanding under the RCF for working capital or general and corporate purposes. The interest rate on the Company's borrowings under the RCF is reset throughout the quarter reflecting current market rates. Consequently, the carrying value approximates fair value.

Marketable Securities Fair Value And Unrealized Losses


	June 30, 2011
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Description of Securities (1):
Federal Agency Mortgage Backed Securities	$	3,283	$	(48	)	$	0	$	0		$	3,283	$	(48	)
U.S. Government Bonds		8,675		(107	)		402		(1	)		9,077		(108	)
Municipal Obligations		6,532		(92	)		4,228		(190	)		10,760		(282	)
Corporate Obligations		2,915		(68	)		93		(3	)		3,008		(71	)

Total debt securities		21,405		(315	)		4,723		(194	)		26,128		(509	)
Common stock		5,380		(1,033	)		3,471		(665	)		8,851		(1,698	)

Total temporarily impaired securities	$	26,785	$	(1,348	)	$	8,194	$	(859	)	$	34,979	$	(2,207	)

(1)	Includes approximately 82 securities.


	December 31, 2010
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Description of Securities (2):
Federal Agency Mortgage Backed Securities	$	2,290	$	(51	)	$	441	$	(27	)	$	2,731	$	(78	)
U.S. Government Bonds		9,583		(124	)		0		0			9,583		(124	)
Municipal Obligations		13,145		(278	)		3,763		(145	)		16,908		(423	)
Corporate Obligations		1,855		(18	)		0		0			1,855		(18	)

Total debt securities		26,873		(471	)		4,204		(172	)		31,077		(643	)
Common stock		6,943		(774	)		4,303		(420	)		11,246		(1,194	)

Total temporarily impaired securities	$	33,816	$	(1,245	)	$	8,507	$	(592	)	$	42,323	$	(1,837	)

(2)	Includes approximately 96 securities.

Unrecognized Gross Unrealized Gains And the Fair Value


	June 30, 2011				December 31, 2010
	Fair Value		Unrealized Gains		Fair Value		Unrealized Gains
Description of Securities:
Federal Agency Mortgage Backed Securities	$	17,625	$	915	$	18,472	$	793
U.S. Government Bonds		14,010		266		10,450		183
Municipal Obligations		20,182		898		15,633		592
Corporate Obligations		7,546		363		7,223		362

Total debt securities		59,363		2,442		51,778		1,930

Common stock		63,448		16,386		56,770		14,142
Cash and Cash Equivalents		4,912		0		3,007		0

Total	$	127,723	$	18,828	$	111,555	$	16,072

Contractual Year For Maturity Of Available-For-Sale Securities


	Total		2011		2012 through 2015		2016 through 2020		2021 and Beyond
Municipal Debt Obligations	$	30,942	$	1,507	$	10,107	$	12,632	$	6,696
Corporate Debt Obligations		10,554		0		4,064		3,674		2,816
U.S. Government Bonds		23,088		0		9,695		9,648		3,745

Unrealized Holding Losses Included In Pre-Tax Income


	Three Months Ended June 30,						Six Months Ended June 30,						Twelve Months Ended June 30,
	2011			2010			2011			2010			2011			2010
Gross unrealized holding losses included in pre-tax income	$	(199	)	$	(263	)	$	(199	)	$	(263	)	$	(199	)	$	(705	)

Sale of Securities And The Related Effects On Pre-Tax Income


	Three Months Ended June 30,						Six Months Ended June 30,						Twelve Months Ended June 30,
	2011			2010			2011			2010			2011			2010
Proceeds from sales of available-for-sale securities	$	22,175		$	14,701		$	36,406		$	34,205		$	63,857		$	93,328

Gross realized gains included in pre-tax income	$	432		$	129		$	696		$	526		$	1,200		$	3,851
Gross realized losses included in pre-tax income		(235	)		(244	)		(294	)		(672	)		(511	)		(502	)
Gross unrealized losses included in pre-tax income		(199	)		(263	)		(199	)		(263	)		(199	)		(705	)

Net gains (losses) in pre-tax income	$	(2	)	$	(378	)	$	203		$	(409	)	$	490		$	2,644

Net unrealized holding gains (losses) included in accumulated other comprehensive income	$	416		$	(6,401	)	$	2,589		$	(3,978	)	$	13,232		$	6,480
Net gains (losses) reclassified out of accumulated other comprehensive income		2			378			(203	)		409			(490	)		(2,644	)

Net gains (losses) in other comprehensive income	$	418		$	(6,023	)	$	2,386		$	(3,569	)	$	12,742		$	3,836

Company's Decommissioning Trust Funds And Investments In Debt Securities


Description of Securities	Fair Value as of June 30, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading Securities:
Investments in Debt Securities	$	2,923	$	0	$	0	$	2,923


Available for sale:
U.S. Government Bonds	$	23,087	$	23,087	$	0	$	0
Federal Agency Mortgage Backed Securities		20,908		0		20,908		0
Municipal Bonds		30,942		0		30,942		0
Corporate Asset Backed Obligations		10,554		0		10,554		0

Subtotal Debt Securities		85,491		23,087		62,404		0

Common Stock		72,299		72,299		0		0
Cash and Cash Equivalents		4,912		4,912		0		0

Total available for sale	$	162,702	$	100,298	$	62,404	$	0


Description of Securities	Fair Value as of December 31, 2010		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading Securities:
Investments in Debt Securities	$	2,909	$	0	$	0	$	2,909


Available for sale:
U.S. Government Bonds	$	20,033	$	20,033	$	0	$	0
Federal Agency Mortgage Backed Securities		21,204		0		21,204		0
Municipal Bonds		32,541		0		32,541		0
Corporate Asset Backed Obligations		9,077		0		9,077		0

Subtotal Debt Securities		82,855		20,033		62,822		0

Common Stock		68,016		68,016		0		0
Cash and Cash Equivalents		3,007		3,007		0		0

Total available for sale	$	153,878	$	91,056	$	62,822	$	0

- Definition

This item represents the entire disclosure related to Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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- Definition

This item represents certain of the disclosures concerning the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

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