Marcellus now tops in production among 6 leading U.S. shale aspwv2013-10-22T00:00:00-04:00October 22nd, 2013|Twitter| Marcellus now tops in production among 6 leading U.S. shale formations http://t.co/RIhi8Nl30L via @PghBizTimes Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail
