Prof Terry Engelder: Marcellus Rock Star May 13, 2013 Hydraulic Fracturing, Industrywide Issues, Pennsylvania, Reserves (Proved and Unproved), Statewide PA Dr. Terry Engelder, geologist and professor at Penn State University, is one of two men who first calculated and publicized the enormous potential Please Login to view this content. (Not a member? Join Today!) Related Post navigation Marcellus & Utica Shale Story Links: Mon, May 13, 2013Calendar of Events for May 13-26, 2013 [Free] You do not have permission to view the comments. Click here to cancel reply.Please Login to post a comment Notify me of follow-up comments by email.