UPDATE 4-Trump's Mexican tariffs could hit U.S. refiners, add to fuel costs Jun 1st 2019, 00:16 U.S. President Donald Trump's threats to tax Mexican imports could disrupt a long-standing cross-border energy trade, hitting U.S. consumers and refiners that use Mexican oil by boosting prices, and raising concerns about potential retaliation by the world's biggest buyer of U.S. energy products.  |