MarcellusGas-259290436852654080 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| Pa. DEP to help fleet operators convert to #NaturalGas, via @PhillyInquirer http://t.co/6aeuPVGt #CNG #Marcellus Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail