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Capitalization (Tables)
9 Months Ended
Sep. 30, 2012
Capitalization Tables  
Carrying amount and estimated fair value

The carrying amount and fair market value of the Company’s bonds were as follows:

 

    (Thousands of Dollars)
    September 30, 2012   December 31, 2011
    Carrying   Fair   Carrying   Fair
    Amount   Value   Amount   Value
Bonds   $ 88,275     $ 89,422     $ 86,577     $ 87,283  
SRF Notes   $ 709     $ 712     $ 793     $ 799