BRUSSELS, BELGIUM --- The European Union extended import fees on U.S. biodiesel this week, citing a need to protect European producers from unfair American subsidies and below-cost selling. 

According to the Associated Press, the EU fees will affect biodiesel sold by Archer Daniels Midland Co., Cargill Inc. and several others that export to Europe. 

Europe is the world's biggest user and producer of crop-based fuels, and the U.S. is the EU's biggest foreign supplier of biodiesel.