Divestiture	12 Months Ended
Dec. 31, 2011
Divestiture Abstract
Divestiture	(2) DIVESTITURES In May 2011, we sold certain oil and natural gas leases, wells and gathering equipment in East Texas for approximately $118.1 million. The sale included only the producing rights to the Haynesville and Middle Bossier Shale intervals in approximately 9,717 net acres. The net production from the Haynesville and Middle Bossier Shale intervals in this acreage was approximately 7.0 MMcf per day and proved net reserves were approximately 37.1 Bcf when the sale was closed in May 2011. At closing, the Company deposited $85.0 million of proceeds from this sale with a qualified intermediary to facilitate potential like-kind exchange transactions pursuant to Section 1031 of the Internal Revenue Code. The remaining funds were classified as restricted cash in the consolidated balance sheet and, unless utilized for one or more like-kind exchange transactions, were restricted in their use until November 2011. For the year ended December 31, 2011, the Company utilized $82.1 million of these restricted funds for like-kind exchange transactions pursuant to Section 1031 of the Internal Revenue Code. In June 2010, we sold certain oil and natural gas leases, wells and gathering equipment in East Texas for approximately $357.8 million. The sale included only the producing rights to the Haynesville and Middle Bossier Shale intervals in approximately 20,063 net acres. The net production from the Haynesville and Middle Bossier Shale intervals in this acreage was approximately 13.5 MMcf per day and proved net reserves were approximately 55.4 Bcf when the sale was closed in June 2010.

Divestiture

12 Months Ended

Dec. 31, 2011

(2) DIVESTITURES

In May 2011, we sold certain oil and natural gas leases, wells and gathering equipment in East Texas for approximately $118.1 million. The sale included only the producing rights to the Haynesville and Middle Bossier Shale intervals in approximately 9,717 net acres. The net production from the Haynesville and Middle Bossier Shale intervals in this acreage was approximately 7.0 MMcf per day and proved net reserves were approximately 37.1 Bcf when the sale was closed in May 2011.

At closing, the Company deposited $85.0 million of proceeds from this sale with a qualified intermediary to facilitate potential like-kind exchange transactions pursuant to Section 1031 of the Internal Revenue Code. The remaining funds were classified as restricted cash in the consolidated balance sheet and, unless utilized for one or more like-kind exchange transactions, were restricted in their use until November 2011. For the year ended December 31, 2011, the Company utilized $82.1 million of these restricted funds for like-kind exchange transactions pursuant to Section 1031 of the Internal Revenue Code.

In June 2010, we sold certain oil and natural gas leases, wells and gathering equipment in East Texas for approximately $357.8 million. The sale included only the producing rights to the Haynesville and Middle Bossier Shale intervals in approximately 20,063 net acres. The net production from the Haynesville and Middle Bossier Shale intervals in this acreage was approximately 13.5 MMcf per day and proved net reserves were approximately 55.4 Bcf when the sale was closed in June 2010.