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Other Liabilities
12 Months Ended
Dec. 31, 2012
Other Liabilities Disclosure [Abstract]  
Other Liabilities Disclosure [Text Block]

Note 11 Other Liabilities

 

Other liabilities included the following:

  December 31,
  2012 2011
Asset retirement obligations$ 139,821$ 45,180
Long-term derivative liabilities  7,402  16,067
Other  469  1
     
Total Other Liabilities$ 147,692$ 61,248

Our asset retirement obligations relate to obligation of the plugging and abandonment of oil and gas properties. The asset retirement obligation is recorded at fair value and accretion expense, recognized over the life of the property, increases the liability to its expected settlement value. If the fair value of the estimated asset retirement obligation changes, an adjustment is recorded for both the asset retirement obligation and the asset retirement cost. The following table provides a rollforward of the asset retirement obligations for the year ended December 31, 2012 and 2011:

  Year Ended
  December 31,
  2012  2011
Carrying amount of asset retirement obligations, as of beginning of period$ 47,258 $ 42,997
Increase due to revised estimates  102,447   14,609
Accretion expense (included in DD&A expense)  7,542   4,478
Impact of foreign currency exchange rate changes  3,019   430
Payment of asset retirement obligations  (8,521)   (15,256)
Liabilities incurred and assumed  24,331   -
Carrying amount of asset retirement obligations, as of end of year  176,076   47,258
      
Less: current portion of asset retirement obligations  (36,255)   (2,078)
Long-term asset retirement obligations$ 139,821 $ 45,180