Divestiture

9 Months Ended

Sep. 30, 2012

Divestiture [Abstract]

Divesture of non-core properties

Divestiture of non-core properties

During the second quarter of 2012, we sold certain mature oil and natural gas properties located in our Velma Area in southern Oklahoma for a cash price of $37,000 subject to post-closing adjustments. In accordance with the full cost method of accounting, we reduced our full cost pool by the amount of the net proceeds and did not record a gain or loss on the sale.