MarcellusGas-217276523672117248 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| Penn State Extension Makes Inroads with #NGVs, via @agsciences http://t.co/s76Ghj64 #ShaleGas #PSU #CNG #Marcellus Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail