.@EIAgov raises estimate of proved #natgas reserves in Marce aspwv2014-12-08T00:00:00-05:00December 8th, 2014|Twitter| .@EIAgov raises estimate of proved #natgas reserves in Marcellus Shale by more than 50%. http://t.co/2JRz0vDozw via @PghBizTimes Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail