CNX/CONSOL to Drill Second Well in Mahoning County, OH CNX Resources | CONSOL Energy | Energy Companies | Mahoning County | Ohio September 10, 2012September 10, 2012 CNX Gas, the wholly-owned subsidiary of CONSOL Energy, was just granted a second permit to drill a horizontal well in Mahoning County, Ohio: Please Login to view this content. (Not a member? Join Today!) Related