According to @EIAgov, Marcellus, Utica among most productive aspwv2016-01-04T00:00:00-05:00January 4th, 2016|Twitter| According to @EIAgov, Marcellus, Utica among most productive U.S. shale plays https://t.co/oP5K8J3E2z via @PghBizTimes #Fracking Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail