RT @PghBizTimes: Report: Shale energy could add 2% to 4% to aspwv2013-07-18T00:00:00-04:00July 18th, 2013|Twitter| RT @PghBizTimes: Report: Shale energy could add 2% to 4% to GDP by 2020 http://t.co/5CFH8hovu0 Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail