RT @WSJ: Billionaire warns that shale is threatening Saudi A aspwv2013-07-31T00:00:00-04:00July 31st, 2013|Twitter| RT @WSJ: Billionaire warns that shale is threatening Saudi Arabia’s economy: http://t.co/zcTiHQTb62 http://t.co/gW0tDVacmo Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail