Beginning in 2003, EnerVest Ltd. has amassed 1.4 million gross acres in Ohio, where it is the state’s largest oil and gas producer, via the acquisitions of CGas and Belden & Blake Corp. and of the Ohio portfolios of Exco Resources Inc. and Range Resources Corp. Today, a portion of its position over Utica is in a joint venture with Chesapeake Energy Corp. and Total SA where Chesapeake has reported three liquids-rich wells that have IP’ed at an average of 2,052 BOE a day.