The Energy Information Administration announced this month that the port district of Houston-Galveston began exporting more crude oil than it imported for the first time. Houston-Galveston exports in April surpassed imports by 15,000 barrels a day, and by May the difference had grown to 470,000 barrels a day. That port district handles more than half of all U.S. crude exports, which hit a record of two million barrels a day in May. MORE