Exclusive-US refiner Valero to import up to 6.5 million barrels of Venezuelan crude in March, sources say
By Nicole Jao, Shariq Khan, Marianna Parraga and Arathy Somasekhar NEW YORK, Feb 13 (Reuters) - Valero Energy is set to buy up to 6.5 million barrels of Venezuelan crude in March bound for its Gulf Coast refineries, making it the top foreign refiner of the OPEC country's oil since the United States 
