brad macmillan with commonwealth financial network. >>> still ahead, does hope float? why the troubled oil tanker industry is betting on it. >>> the u.s. and mexican governments have reached a new agreement in principle on trading in sugar. the deal was announced by commerce secretary ross and it calls for mexico to export a smaller portion of refined sugar and a larger proportion of raw sugar to the u.s. u.s. producers have not endorsed the agreement and in a statement, they expressed concern that the deal contains a major loophole. >>> the companies that transport crude around the world are hitting some rough seas. tanker industry profits are getting squeezed as a result of good old supply and demand. and as morgan brennan tells us, it's not clear when the tide might turn. >> reporter: this is the largest oil tanker ever to call on a gulf of mexico port. it did so recently in texas. a test by occidental petroleum to see if the shale producer can more directly load its crude onto ships destined for asia. this comes at a time when oil shippers are destined for new mark