RT @investPA: #Marcellus Shale is responsible for over 15,00 aspwv2013-08-12T00:00:00-04:00August 12th, 2013|Twitter| RT @investPA: #Marcellus Shale is responsible for over 15,000 new hires in PA over the past 3 years. http://t.co/od5U07WbAe Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail