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Property, Plant And Equipment (Tables)
3 Months Ended
Mar. 31, 2012
Property, Plant And Equipment [Abstract]  
Schedule Of Property, Plant And Equipment
March 31, 2012     December 31, 2011  
     (In thousands)  

Proved oil and gas properties (1)

   $ 1,434,402      $ 1,152,532   

Less: Accumulated depreciation, depletion, amortization and impairment

     (212,831     (174,948
  

 

 

   

 

 

 

Proved oil and gas properties, net

     1,221,571        977,584   

Unproved oil and gas properties

     81,386        82,825   
  

 

 

   

 

 

 

Oil and gas properties, net

     1,302,957        1,060,409   

Other property and equipment

     38,660        20,859   

Less: Accumulated depreciation

     (2,605     (1,313
  

 

 

   

 

 

 

Other property and equipment, net

     36,055        19,546   
  

 

 

   

 

 

 

Total property, plant and equipment, net

   $ 1,339,012      $ 1,079,955