XML 16 R12.htm IDEA: XBRL DOCUMENT v2.3.0.15
Note 7 - ASSET RETIREMENT OBLIGATION
9 Months Ended
Sep. 30, 2011
Asset Retirement Obligation Disclosure [Text Block]
 (7)          ASSET RETIREMENT OBLIGATION

We recognize the present value of asset retirement obligations beginning in the period in which they are incurred if a reasonable estimate of a fair value can be made. The associated asset retirement costs are capitalized as part of the carrying amount of the long-lived asset. As of September 30, 2011, $808 thousand of the $9.3 million asset retirement obligation was classified as a current liability due to plugging activities we estimate may occur during the next twelve months. A summary of our asset retirement obligations as of September 30, 2011 is as follows (in thousands):

   
Asset Retirement
   
Asset Category
 
Obligation Liability
 
Estimated Life
Oil and gas producing properties
  $ 7,454  
0-16 years
Facilities and other property
    1,904  
5-23 years
    $ 9,358    

The following table describes all changes to our asset retirement obligation liability during the nine months ended September 30, 2011 (in thousands):

Asset retirement obligation at beginning of year
  $ 8,937  
Additions during the period
    -  
Disposals during the period
    (521 )
Revisions of estimates
    517  
Accretion of discount
    425  
Asset retirement obligation at end of period
  $ 9,358