MarcellusGas-190919249504632834 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| Pa. becoming a nationwide hub for #CNG systems training, thanks to #Marcellus #ShaleGas – http://t.co/qzRipCzG Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail