Chevron’s First Utica Drilling Permit for Mercer County, PA Chevron | Energy Companies | Mercer County | Pennsylvania October 11, 2012October 11, 2012 Chevron just received its first permit to drill in the Utica Shale in Mercer County, PA. This is the fourth permit for shale gas drilling in Mercer County. Please Login to view this content. (Not a member? Join Today!) Related