v2.4.0.8
Fair Value Measurements
 12 Months Ended
Dec. 31, 2013
Fair Value Measurements  
Fair Value Measurements

Note 8 Fair Value Measurements

        Fair value is the price that would be received upon sale of an asset or paid upon transfer of a liability in an orderly transaction between market participants at the measurement date (exit price). We utilize market data or assumptions that market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market-corroborated, or generally unobservable. We primarily apply the market approach for recurring fair value measurements and endeavor to utilize the best information available. Accordingly, we employ valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The use of unobservable inputs is intended to allow for fair value determinations in situations where there is little, if any, market activity for the asset or liability at the measurement date. We are able to classify fair value balances utilizing a fair value hierarchy based on the observability of those inputs. Under the fair value hierarchy:

  • •
    Level 1 measurements include unadjusted quoted market prices for identical assets or liabilities in an active market;

    •
    Level 2 measurements include quoted market prices for identical assets or liabilities in an active market that have been adjusted for items such as effects of restrictions for transferability and those that are not quoted but are observable through corroboration with observable market data, including quoted market prices for similar assets; and

    •
    Level 3 measurements include those that are unobservable and of a subjective nature.

        The following table sets forth, by level within the fair value hierarchy, our financial assets and liabilities that are accounted for at fair value on a recurring basis as of December 31, 2013. Our debt securities could transfer into or out of a Level 1 or 2 measure depending on the availability of independent and current pricing at the end of each quarter. During 2013, there were no transfers of our financial assets between Level 1 and Level 2 measures. Our financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.

 
   Fair Value as of December 31, 2013  
 
   Level 1   Level 2   Level 3   Total  
 
   (In thousands)
  

Assets:

                          

Short-term investments:

                          

Available-for-sale equity securities from energy industry

   $ 96,080   $ 862   $ —   $ 96,942  

Available-for-sale debt securities:

                          

Corporate debt securities

     —     19,388     —     19,388  

Mortgage-backed debt securities

     —     210     —     210  

Mortgage-CMO debt securities

     —     20     —     20  

Asset-backed debt securities

     658     —     —     658  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total short-term investments

   $ 96,738   $ 20,480   $ —   $ 117,218  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Nonrecurring Fair Value Measurements

        Fair value measurements were applied with respect to our nonfinancial assets and liabilities measured on a nonrecurring basis, which would consist of measurements primarily to assets held for sale, goodwill, intangible assets and other long-lived assets, assets acquired and liabilities assumed in a business combination, asset retirement obligations and our pipeline contractual commitment.

Fair Value of Financial Instruments

        The fair value of our financial instruments has been estimated in accordance with GAAP. The fair value of our long-term debt, revolving credit facility, commercial paper and subsidiary preferred stock is estimated based on quoted market prices or prices quoted from third-party financial institutions. The carrying and fair values of these liabilities were as follows:

 
   December 31,  
 
   2013   2012  
 
   Effective
Interest
Rate		   Carrying
Value		   Fair Value   Effective
Interest
Rate		   Carrying
Value		   Fair Value  
 
   (In thousands)
  

2.35% senior notes due September 2016

     2.56 % $ 349,820   $ 354,694     6.42 % $ —   $ —  

6.15% senior notes due February 2018

     6.42 %   969,928     1,097,480     6.42 %   968,708     1,164,813  

9.25% senior notes due January 2019

     9.33 %   339,607     428,733     9.33 %   1,125,000     1,492,819  

5.00% senior notes due September 2020

     5.20 %   697,947     731,955     5.20 %   697,648     770,707  

4.625% senior notes due September 2021

     4.75 %   698,148     709,793     4.75 %   697,907     755,517  

5.10% senior notes due September 2023

     5.26 %   348,765     349,731     0.00 %   —     —  

Subsidiary preferred stock

     4.00 %   69,188     69,000     4.00 %   69,188     68,625  

Revolving credit facilities

     2.28 %   170,000     170,000     2.17 %   890,000     890,000  

Commercial paper

     0.45 %   329,844     329,844     0.00 %   —     —  

Other

     0.00 %   10,243     10,243     0.00 %   437     437  
                               
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total

         $ 3,983,490   $ 4,251,473         $ 4,448,888   $ 5,142,918  
                               
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

        The fair values of our cash equivalents, trade receivables and trade payables approximate their carrying values due to the short-term nature of these instruments.

        As of December 31, 2013, our short-term investments were carried at fair market value and included $117.2 million in securities classified as available-for-sale. As of December 31, 2012, our short-term investments were carried at fair market value and included $200.6 million and $52.7 million in securities classified as available-for-sale and trading, respectively.