Denver-based FourPoint Energy LLC will pay $840 million for assets owned by two subsidiaries of Chesapeake Energy Corp. - boosting the private oil and gas exploration company's position in Oklahoma's Western Anadarko Basin. The $840 million purchase price actually covers three transactions involving FourPoint, led by president and CEO George Solich , for the assets of Chesapeake Exploration LLC and CHK Cleveland Tonkawa LLC, two subsidiaries of Oklahoma City-basked Chesapeake Energy "It was a very challenging deal to do but we're excited that we're signed," Solich told the Denver Business Journal on Wednesday.