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Derivative Instruments and Hedging Activities (Tables)
12 Months Ended
Dec. 31, 2012
Derivative Instruments and Hedging Activities  
Outstanding Commodity Derivatives

 As of December 31, 2012, the Company had the following outstanding commodity derivatives designated as hedging instruments:

Commodity and Derivative Type
  Weighted-Average Contract Price   Volume   Contract Period

Natural gas collars

  $3.09 Floor / $4.12 Ceiling   per Mcf     35.5   Bcf   Jan. 2013 - Dec. 2013

Natural gas collars

  $3.35 Floor / $4.01 Ceiling   per Mcf     35.5   Bcf   Jan. 2013 - Dec. 2013

Natural gas collars

  $3.40 Floor / $4.12 Ceiling   per Mcf     17.7   Bcf   Jan. 2013 - Dec. 2013

Natural gas collars

  $3.60 Floor / $4.17 Ceiling   per Mcf     17.7   Bcf   Jan. 2013 - Dec. 2013

Natural gas collars

  $3.76 Floor / $4.16 Ceiling   per Mcf     17.7   Bcf   Jan. 2013 - Dec. 2013

Natural gas collars

  $3.86 Floor / $4.34 Ceiling   per Mcf     17.7   Bcf   Jan. 2013 - Dec. 2013

Natural gas collars

  $5.15 Floor / $6.20 Ceiling   per Mcf     17.7   Bcf   Jan. 2013 - Dec. 2013

Crude oil swaps

  $101.90   per Bbl     1,095   Mbbl   Jan. 2013 - Dec. 2013

        

Effect of Derivatives Instruments on the Consolidated Balance Sheet
  •  

 

 
  Fair Values of Derivative Instruments  
 
  Asset Derivatives    
  Liability Derivatives  
 
   
  December 31,    
   
  December 31,  
 
   
   
   
 
 
  Balance Sheet Location   2012   2011    
  Balance Sheet Location   2012   2011  
(In thousands)
   
 

Derivatives Designated as Hedging Instruments

                                     

Commodity contracts

 

Derivative instruments (current assets)

  $ 50,824   $ 177,389      

Derivative instruments (current assets)

  $   $  

Commodity contracts

 

Accrued liabilities

             

Accrued liabilities

    (192 )   (385 )

Commodity contracts

 

Derivative instruments (non-current assets)

        21,249      

Derivative instruments (non-current assets)

         

Commodity contracts

 

Other liabilities

             

Other liabilities

         
                               

 

        50,824     198,638             (192 )   (385 )

Derivatives Not Designated as Hedging Instruments

                                     

Commodity contracts

 

Derivative instruments (current assets)

             

Derivative instruments (current assets)

        (3,126 )
                               

      $ 50,824   $ 198,638           $ (192 ) $ (3,511 )
                               

        

Effect of Derivatives Designated as Hedging Instruments on the Consolidated Statement of Operations
  •  

 

 
  Amount of Gain (Loss)
Recognized in OCI on
Derivative (Effective Portion)
   
  Amount of Gain (Loss)
Reclassified from Accumulated
OCI into Income (Effective
Portion)
 
 
  Year Ended December 31,   Location of Gain (Loss)
Reclassified from Accumulated
OCI into Income
(In thousands)
  Year Ended December 31,  
Derivatives Designated
as Hedging Instruments
(In thousands)
 
  2012   2011   2010   2012   2011   2010  

Commodity Contracts

  $ 88,705   $ 267,667   $ 75,655  

Natural gas revenues

  $ 225,108   $ 84,937   $ 154,960  

 

                   

Crude oil and condensate revenues

    11,218     1,403     18,030  
                                     

 

                        $ 236,326   $ 86,340   $ 172,990  
                                     

        

Effect of Derivatives Not Designated as Hedging Instruments on the Consolidated Statement of Operations

For the years ended December 31, 2012, 2011 and 2010, respectively, there was no ineffectiveness recorded in our Consolidated Statement of Operations related to our derivative instruments.

 
   
  Year Ended December 31,  
Derivatives Not Designated
as Hedging Instruments
(In thousands)
  Location of Gain (Loss)
Recognized in Income on
Derivative
 
  2012   2011   2010  

Commodity Contracts

  Natural gas revenues   $ (494 ) $ (965 ) $ (226 )