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ASSET RETIREMENT OBLIGATIONS
12 Months Ended
Dec. 31, 2011
ASSET RETIREMENT OBLIGATIONS [Abstract]  
ASSET RETIREMENT OBLIGATIONS
NOTE 6 - ASSET RETIREMENT OBLIGATIONS

The total undiscounted amount of future cash flows to settle our asset retirement obligations is estimated to be $222.2 million and $162.0 million at December 31, 2011 and 2010. We recorded a discounted total of approximately $43.4 million for future asset retirement obligations in connection with the conveyance of net assets from the Fund. Payments to settle asset retirement obligations occur over the lives of the oil and gas properties, estimated to be from less than one year to 61 years. Estimated cash flows have been discounted at our credit adjusted risk free rate of 5.59% and adjusted for inflation using a rate of 2.25%.
 
Changes in the asset retirement obligations are presented in the following table:

   
Partnership
  
Predecessor
 
      
December 22
  
January 1
 
   
Year Ended
  
to
  
to
 
   
December 31,
  
December 31,
  
December 21,
 
   
2011
  
2010
  
2010
 
Beginning of period
 $43,414  $38,319  $35,244 
Assumed in acquisitions
  -   5,018   24,849 
Revisions to previous estimates(1)
  19,456   -   1,494 
Liabilities incurred
  377   -   - 
Liabilities settled
  (248)  -   (747)
Accretion expense
  2,702   77   3,674 
End of period
 $65,701  $43,414  $64,514 
Less: Current portion of asset retirement obligations
  (348)  (4,166)  (4,187)
Asset retirement obligations -   non-current
 $65,353  $39,248  $60,327 
 
 
(1)
In 2011 we recorded upward revisions to previous estimates for our asset retirement obligations due to increases in future plugging and abandonment costs and changes to the remaining lives of our wells.
 
In 2011 we recorded upward revisions to previous estimates for our asset retirement obligations due to increases in future plugging and abandonment costs and changes to the remaining lives of our wells.