The Trump Administration has temporarily frozen a program meant to exempt small oil refineries in financial distress from the U.S. biofuels law, as it reviews the scoring system to evaluate applications, according to two sources familiar with the matter. The review means changes are likely to the program, which has become a lightning rod of controversy between the rival oil and corn industries since the Environmental Protection Agency vastly increased the number of waivers for last year. Under the U.S. Renewable Fuel Standard, oil refiners must increasingly blend biofuels like corn-based ethanol into their fuel each year or purchase blending credits from those that do. The regulation was passed in 2005 to help farmers […]