Shale study promises huge gains, 3.3 million jobs by ’20 htt aspwv2013-09-04T00:00:00-04:00September 4th, 2013|Twitter| Shale study promises huge gains, 3.3 million jobs by ’20 http://t.co/I87BJUvKfB via @PittsburghPG Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail