U.S. refiners' biofuel bill soars to record high as debate heats up
March 10, 2017 at 11:46 AM EST
March 10 (Reuters) - Oil refiners shelled out a record over $2 billion to meet U.S. biofuels requirements in 2016, a 70 percent surge that helps fuel a growing debate over who should shoulder the costs for meeting environmental regulations.