Reuters has reported that the Environmental Protection Agency has granted a financial hardship waiver to an Oklahoma oil refinery owned by billionaire former Trump adviser Carl Icahn. The waiver enables Icahn’s refinery—CVR Energy Inc.—to save tens of millions of dollars by exempting it from the requirement of mixing biofuels into the gasoline. The regulation was enacted to cut air pollution and reduce petroleum imports. Icahn served as a special regulatory adviser to President Trump, during which time he personally vetted EPA Administrator Scott Pruitt for his job. Icahn resigned last August, just before The New Yorker published an investigation detailing Icahn’s potential conflicts of interest, including his heavy lobbying for a rule change about blending ethanol biofuels into gasoline—which is the exemption he has now received from the EPA for his refinery.