Through its subsidiaries G3 Operating, LLC and Southern Bay Operating, LLC, GeoResources, Inc. owns and operates producing oil and gas properties in the Gulf Coast, Permian Basin, Rocky Mountains and Williston Basin in the U.S. and conducts oil and gas exploration and development and production operations in these areas.

At year-end 2007, GeoResources’ pro forma reserves are currently estimated at 15.7 million barrels of oil equivalent, approximately 69% oil and 85% proved developed. Production at year end was about 2,165 BOPD and 8,620 Mcfd. The Company owns 145,780 net developed acres and 59,149 net undeveloped acres in Texas, Louisiana, Colorado, North Dakota, Montana and Utah.