XOM - As Permian oil production turns lighter price outlook darkens - Reuters June, 06 2019 11:59 AM Exxon Mobil Corporation The U.S. may now be the world's biggest crude producer, but the oil produced in the prolific Permian Basin increasingly is too light in density for domestic refiners or for exports, Reuters reports.More news on: Chevron Corporation, Occidental Petroleum Corporation, Concho Resources Inc., Energy stocks news, News on ETFs, Read more ...