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4. Fair Value Measurements
9 Months Ended
Jun. 30, 2011
Fair Value Measurements Abstract  
4. Fair Value Measurements

4. Fair Value Measurements

 

We report certain assets and liabilities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). We record cash and cash equivalents, accounts receivable and accounts payable at carrying value, which substantially approximates fair value due to the short-term nature of these assets and liabilities. For other financial assets and liabilities, we primarily use quoted market prices and other observable market pricing information to minimize the use of unobservable pricing inputs in our measurements when determining fair value. The methods used to determine fair value for our assets and liabilities are fully described in Note 2 to the financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2010. During the three and nine months ended June 30, 2011, there were no changes in these methods.

 

Fair value measurements also apply to the valuation of our pension and postretirement plan assets. Current accounting guidance requires employers to annually disclose information about fair value measurements of the assets of a defined benefit pension or other postretirement plan. The fair value of these assets is presented in Note 8 to the financial statements in our Annual Report on Form 10-K for the fiscal year ending September 30, 2010.

 

Quantitative Disclosures

 

Financial Instruments

 

The classification of our fair value measurements requires judgment regarding the degree to which market data are observable or corroborated by observable market data. Authoritative accounting literature establishes a fair value hierarchy that prioritizes the inputs used to measure fair value based on observable and unobservable data. The hierarchy categorizes the inputs into three levels, with the highest priority given to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1), with the lowest priority given to unobservable inputs (Level 3). The following tables summarize, by level within the fair value hierarchy, our assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2011 and September 30, 2010. Assets and liabilities are categorized in their entirety based on the lowest level of input that is significant to the fair value measurement.

 

   Quoted Significant Significant    
   Prices in Other Other    
   Active Observable Unobservable Netting and  
   Markets Inputs Inputs Cash June 30,
   (Level 1) (Level 2)(1) (Level 3) Collateral(2) 2011
    (In thousands)
                 
Assets:               
Financial instruments               
 Natural gas distribution segment $ - $ 2,739 $ - $ - $ 2,739
 Nonregulated segment   3,696   34,367   -   (25,006)   13,057
Total financial instruments   3,696   37,106   -   (25,006)   15,796
                 
Hedged portion of gas stored               
 underground   86,544   -   -   -   86,544
Available-for-sale securities   44,045   -   -   -   44,045
Total assets  $ 134,285 $ 37,106 $ - $ (25,006) $ 146,385
                 
Liabilities:               
Financial instruments               
 Natural gas distribution segment $ - $ 5,263 $ - $ - $ 5,263
 Nonregulated segment   10,645   38,827   -   (40,388)   9,084
Total liabilities $ 10,645 $ 44,090 $ - $ (40,388) $ 14,347

   Quoted Significant Significant    
   Prices in Other Other    
   Active Observable Unobservable Netting and  
   Markets Inputs Inputs Cash September 30,
   (Level 1) (Level 2)(1) (Level 3) Collateral(3) 2010
    (In thousands)
                 
Assets:               
Financial instruments               
 Natural gas distribution segment $ - $ 2,266 $ - $ - $ 2,266
 Nonregulated segment   18,544   42,462   -   (41,760)   19,246
Total financial instruments   18,544   44,728   -   (41,760)   21,512
                 
Hedged portion of gas stored               
 underground   57,507   -   -   -   57,507
Available-for-sale securities   41,466   -   -   -   41,466
Total assets  $ 117,517 $ 44,728 $ - $ (41,760) $ 120,485
                 
Liabilities:               
Financial instruments               
 Natural gas distribution segment $ - $ 51,866 $ - $ - $ 51,866
 Nonregulated segment   41,430   31,950   -   (66,649)   6,731
Total liabilities $ 41,430 $ 83,816 $ - $ (66,649) $ 58,597

(1)       Our Level 2 measurements primarily consist of non-exchange-traded financial instruments, such as over-the-counter options and swaps where market data for pricing is observable. The fair values for these assets and liabilities are determined using a market-based approach in which observable market prices are adjusted for criteria specific to each instrument, such as the strike price, notional amount or basis differences.

 

(2)        This column reflects adjustments to our gross financial instrument assets and liabilities to reflect netting permitted under our master netting agreements and the relevant authoritative accounting literature. In addition, as of June 30, 2011, we had $15.4 million of cash held in margin accounts to collateralize certain financial instruments. Of this amount, $4.4 million was used to offset current risk management liabilities under master netting arrangements and the remaining $11.0 million is classified as current risk management assets.

 

(3)       This column reflects adjustments to our gross financial instrument assets and liabilities to reflect netting permitted under our master netting agreements and the relevant authoritative accounting literature. In addition, as of September 30, 2010 we had $24.9 million of cash held in margin accounts to collateralize certain financial instruments. Of this amount, $12.6 million was used to offset current risk management liabilities under master netting arrangements and the remaining $12.3 million is classified as current risk management assets.

 

Nonrecurring Fair Value Measurements

 

As discussed in Note 9, during the third quarter we performed an impairment assessment of certain natural gas gathering assets in our nonregulated segment. We used a combination of a market and income approach in a weighted average discounted cash flow analysis that included significant inputs such as our weighted average cost of capital and assumptions regarding future natural gas prices. This is a Level 3 fair value measurement because the inputs used are unobservable. Based on this analysis, we determined the assets to be impaired. We reduced the carrying value of the assets to their estimated fair value of approximately $6 million and recorded a pre-tax noncash impairment loss of approximately $11 million.

 

Other Fair Value Measures

 

Our debt is recorded at carrying value. The fair value of our debt is determined using third party market value quotations. The following table presents the carrying value and fair value of our debt as of June 30, 2011:

 

  June 30, 2011
  (In thousands)
    
Carrying Amount $ 2,212,630
Fair Value $ 2,474,064