MarcellusGas-212949179008434176 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| New Study: Pa. leads U.S. in growth of #shalegas industry, via @CPBJ: http://t.co/EAC7S9cS #NatGas #Marcellus Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail