Date Majority Gas Deals Used In R/P Analysis Download 12-28-2007 Mariner Energy to Acquire StatoiliHydro's Gulf of Mexico Properties 12-12-2007 Petrohawk Wins Offer for 83 BCFE in North LA for $169 MM 11-27-2007 Petrohawk Targets 24,000 Net Fayetteville Acres 11-26-2007 Comstock to Pay $170 MM for S. TX Assets, Gains 58 BCF 11-19-2007 EV energy Partner to Acquire Natural Gas Properties in West Virginia 11-06-2007 Pioneer To Buy 91 BCFE in Barnett, Sprayberry for $240MM 10-25-2007 Penn Virginia Increases East Texas Holdings For $44.9MM 10-23-2007 XTO Acquires Additional Barnett Land For $550MM 10-16-2007 Petrohawk To Sell Gulf Coast Assets for $825MM 09-27-2007 Brigham Exploration Closes on Sale of Anadarko Basin Granite Wash Assets 09-19-2007 Equitable Buys 13 BCFE-Proved from Penn Virginia 09-12-2007 Breitburn to Acquire Quiksilver's Illinois, Michigan Basin Assets 09-05-2007 Swift to Acquire South Texas Fields From Escondido 08-30-2007 Penn Virginia Acquires Oklahoma Assets 08-17-2007 El Paso to Acquire Peoples Energy 08-03-2007 Constellation to Acquire Cherokee CBM from Newfield 08-03-2007 St. Mary to Add 95 BCFE-Proved in South Texas 07-30-2007 Pioneer to Acquire Raton Interest from Petrogulf 07-18-2007 EV Energy Partners to Acquire Oil and Gas Properties in Permian Basin 07-13-2007 Constellation to Acquire Amvest Osage 07-02-2007 Penn Virginia Corporation Announces Acquisitions in East Texas and Mississippi 06-26-2007 McMoran to Acquire Shallow Water Gulf Assets from Newfield 06-14-2007 St. Mary Acquires South Texas Assets 05-21-2007 Atlas Plans to Acquire DTE's Oil and Gas Assets for $1.23B 05-16-2007 Encore to Sell Midcontinent Assets 05-14-2007 Newfield to Acquire Most of Stone's Rockies Assets 05-08-2007 Crimson Exploration Acquires South Texas Assets from EXCO Resources 04-18-2007 Plains to Acquire Colorado Assets 04-02-2007 Range Sells Gulf of Mexico Shelf Assets 03-09-2007 Constellation to Acquire Cherokee Basin Assets from EnergyQuest 03-08-2007 EV Energy Partners to Acquire Louisiana Assets from EnerVest 02-21-2007 TXCO Plans to Acquire Output Exploration 02-06-2007 Edge Acquires Texas from Smith 02-02-2007 EXCO to Buy Texas and Mid-Continent Assets from Anadarko 01-19-2007 Sterling Energy Plans to Buy Whittier 01-16-2007 Goodrich to Sell Most of its South Louisiana Assets 01-07-2007 Forest Oil to Acquire the Houston Exploration Company for $1.5 Billion 09-11-2006 Chesapeake Plans to Buy Stake in Chaparral 07-24-2006 EXCO Announces Agreement to Acquire ETX and NLA Gas Prouducer for $1.2 MM

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