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ASSET RETIREMENT OBLIGATIONS
3 Months Ended
Mar. 31, 2012
ASSET RETIREMENT OBLIGATIONS [Abstract]  
Asset Retirement Obligation Disclosure [Text Block]
ASSET RETIREMENT OBLIGATIONS

The following table presents the changes in carrying amounts of the asset retirement obligations associated with our working interest in natural gas and crude oil properties.

 
Amount
 
(in thousands)
 
 
Balance at December 31, 2011
$
46,566

Obligations incurred with development activities
99

Accretion expense
818

Obligations discharged with disposal of properties and asset retirements
(2,061
)
Balance at March 31, 2012
45,422

Less current portion
(250
)
Long-term portion
$
45,172