As of April 17, 2007, GeoResources Inc. was acquired by Southern Bay Oil & Gas, L.P. and Chandler Energy, LLC in a reverse merger transaction. GeoResources, Inc., a natural resources company, engages in the exploration, development, and production of oil and gas in North Dakota and Montana. The company, through its subsidiary, Western Star Drilling Company, provides rig, equipment, and personnel on a contract basis. GeoResources also operates leonardite mine (oxidized lignite coal) and a processing plant in Williston, North Dakota. As of December 31, 2005, it had proved developed reserves of 2,070,000 bbl of oil and 1,396,000 mcf of gas. As of the above date, the company developed oil and gas leases covering approximately 16,019 net acres in Montana and North Dakota; and owned 7 patented mining claims and 15 unpatented mining claims in the Tonto National Forest in Pinal County, Arizona. GeoResources was incorporated in 1958 and is based in Williston, North Dakota.