GeoResources Inc., Williston, N.D., (Nasdaq: GEOI) has named Frank A. Lodzinski chief executive and president. He was CEO and president of recently acquired Houston-based Southern Bay Oil & Gas LP. Collis P. Chandler has been named executive vice president. He was president of recently acquired Denver-based Chandler Energy LLC. Jeffrey P. Vickers was named vice president, Williston Basin exploration and development. He was president of GeoResources. Lodzinski, Chandler, Christopher W. Hunt, Jay F. Joliat, Scott R. Stevens, Michael A. Vlasic and Nick Voller were named to the board. They were chosen by parties appointed by Southern Bay and Chandler.