Acquisitions and Divestitures	3 Months Ended
Mar. 31, 2012
Acquisitions and Divestitures	3. Acquisitions and Divestitures *Property Acquisitions* Eagle Ford Property Acquisitions In December 2011, we entered into an agreement with an industry partner to jointly explore an area of mutual interest in Lavaca County, Texas. Depending upon the future participation of other parties included in the joint venture, our minimum working interest is expected to be approximately 57%. Under the terms of the agreement, we must commence drilling on six wells by September 1, 2012 to earn our entire interest in the acreage and must carry our partner on its working interest share of the costs of the first three wells. We drilled two successful exploratory wells on the acreage in the three months ended March 31, 2012. *Divestitures* Oil and Gas Properties In January 2012, we sold our remaining undeveloped acreage in Butler and Armstrong counties in Pennsylvania for proceeds of $1.0 million, net of transaction costs. We recognized a gain of $0.6 million in connection with this transaction.

Acquisitions and Divestitures

3 Months Ended

Mar. 31, 2012

3. Acquisitions and Divestitures

Property Acquisitions

Eagle Ford Property Acquisitions

In December 2011, we entered into an agreement with an industry partner to jointly explore an area of mutual interest in Lavaca County, Texas. Depending upon the future participation of other parties included in the joint venture, our minimum working interest is expected to be approximately 57%. Under the terms of the agreement, we must commence drilling on six wells by September 1, 2012 to earn our entire interest in the acreage and must carry our partner on its working interest share of the costs of the first three wells. We drilled two successful exploratory wells on the acreage in the three months ended March 31, 2012.

Divestitures

Oil and Gas Properties

In January 2012, we sold our remaining undeveloped acreage in Butler and Armstrong counties in Pennsylvania for proceeds of $1.0 million, net of transaction costs. We recognized a gain of $0.6 million in connection with this transaction.