COAL: U.S. imports spike despite drop-off since 2007 Published: Friday, August 15, 2014 Weakened prices have led to an increase in coal imports to the United States, much of which is coming from Colombia. Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.