Illinois is home to the largest dry mill ethanol plant in the U.S. It’s Marquis Energy located in Hennepin in Putnam County. They now produce 360-million gallons per year. Company CEO Mark Marquis says Illinois River access has been key to their success.
The first truckload of corn was delivered to Marquis Energy in April of 2008. Most of their corn comes from a 70-mile radius.