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Long-Term Debt, Credit Arrangements And Guarantees (Tables)

9 Months Ended

Sep. 30, 2012

Details on Long Term Debt

Details on long-term debt at September 30, 2012, September 30, 2011 and December 31, 2011 are shown below ($ Millions):

		September 30,								December 31,
		2012				2011				2011
Unitil Corporation Senior Notes:
6.33% Notes, Due May 1, 2022		$	20.0			$	20.0			$	20.0
Unitil Energy Systems, Inc.:
First Mortgage Bonds:
5.24% Series, Due March 2, 2020			15.0				15.0				15.0
8.49% Series, Due October 14, 2024			15.0				15.0				15.0
6.96% Series, Due September 1, 2028			20.0				20.0				20.0
8.00% Series, Due May 1, 2031			15.0				15.0				15.0
6.32% Series, Due September 15, 2036			15.0				15.0				15.0
Fitchburg Gas and Electric Light Company:
Long-Term Notes:
6.75% Notes, Due November 30, 2023			19.0				19.0				19.0
7.37% Notes, Due January 15, 2029			12.0				12.0				12.0
7.98% Notes, Due June 1, 2031			14.0				14.0				14.0
6.79% Notes, Due October 15, 2025			10.0				10.0				10.0
5.90% Notes, Due December 15, 2030			15.0				15.0				15.0
Northern Utilities Senior Notes:
6.95% Senior Notes, Due December 3, 2018			30.0				30.0				30.0
5.29% Senior Notes, Due March 2, 2020			25.0				25.0				25.0
7.72% Senior Notes, Due December 3, 2038			50.0				50.0				50.0
Granite Senior Notes:
7.15% Senior Notes, Due December 15, 2018			10.0				10.0				10.0
Unitil Realty Corp.:
Senior Secured Notes:
8.00% Notes, Due Through August 1, 2017			3.0				3.5				3.3
Total Long-Term Debt			288.0				288.5				288.3
Less: Current Portion			0.5				0.5				0.5
Total Long-term Debt, Less Current Portion		$	287.5			$	288.0			$	287.8

Estimated Fair Value of Long-Term Debt

directly observable, and inputs derived principally from market data.) In estimating the fair value of the Company’s long-term debt, the assumed market yield reflects the Moody’s Baa Utility Bond Average Yield. Costs, including prepayment costs, associated with the early settlement of long-term debt are not taken into consideration in determining fair value.

(Millions)		September 30,								December 31,
		2012				2011				2011
Estimated Fair Value of Long-Term Debt		$	343.6			$	338.0			$	338.7

Borrowing Limits, Amounts Outstanding and Amounts Available Under Revolving Credit Facility

The following table details the borrowing limits, amounts outstanding and amounts available under the revolving credit facility as of September 30, 2012, September 30, 2011 and December 31, 2011:

		September 30,								December 31,
Revolving Credit Facility (millions)		2012				2011				2011
Limit		$	60.0			$	80.0			$	115.0
Outstanding		$	24.1			$	65.4			$	87.9
Available		$	35.9			$	14.6			$	27.1

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