"A U.S. court decision last week striking down three biofuel waivers that the Environmental Protection Agency gave oil refineries in 2017 has cast doubt on the legitimacy of dozens of other EPA exemptions granted under similar circumstances, according to industry experts and agency data.

That spells uncertainty for a handful of independent refiners that secured lucrative waivers from the Trump administration, and could fire up prices for the biofuel blending credits those facilities need to comply with the nation’s biofuel law.

“The potential ramifications are huge,” said James Stock, an economist and professor at Harvard University who has researched biofuel policy."

Richard Valdmanis reports for Reuters January 28, 2020. [2]