The corn ethanol camp is gearing up for a new legal fight with the Environmental Protection Agency at a time when President Trump was supposedly negotiating a “win-win” deal between ethanol producers and oil refiners.

The emerging fight stems from a decision that was made under the “cover of darkness,” with no oversight, according to Bob Dinneen, the ethanol industry’s top lobbyist in Washington, who assailed news that the EPA exempted Andeavor, the fifth-largest refinery company in the country, from having to comply with the Renewable Fuel Standard.