MarcellusGas-170196670108282882 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| RT @EIAgov: #Energy In Brief Update: What is shale gas & why is it important? http://t.co/wE0QfSyE #natgas #shalegas Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail