Mexico has become a net importer of petroleum products in its trade with the U.S. for the first time in at least 40 years, a significant industrial shift for a country that has long been proud of its status as one of the world’s top crude-oil exporters. Mexico still exports more than a million barrels a day of crude oil, but it imports just about everything else: natural gas, gasoline, diesel, liquefied petroleum gas, and petrochemicals. In the first three months of the year, the country posted a petroleum deficit of about $551 million with the U.S., according to recent Bank of Mexico data. The newfound dominance of the U.S. energy sector is relevant for a country that has long been proud of its status as a “petroleum nation,” after former President Lázaro Cárdenas nationalized the industry in 1938. The shift comes partly from the U.S. energy boom […]