April, 2008
ERG recently acquired the interest of GeoResources, Inc. in the Grass Island Field, located in Calhoun County, Texas and the Port Neches Field in Orange County Texas. ERG has assumed operations and continues to evaluate operational efficiencies. The two fields are currently producing approximately 300 net BOPD. The acquisition has added 26 producing wells, 6 potential PDNP wells, 1 PUD location, and a considerable amount of production facilities and operational equipment to ERG's asset base.

October 2007
ERG acquired the interests of Crosspoint Energy Holdings, LLC in the Hoskins Mound Field, Brazoria County, Texas. The acquisition came with 105 square miles of proprietary 3D seismic over the salt dome.