MarcellusGas-237718329371017216 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| #Portland transitions to compressed #naturalgas school buses http://t.co/1n0g2IBH via @bangordailynews #CNG #ShaleGas Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail