Six states accounted for 72% of U.S. fuel ethanol production in 2016, according to the most recent estimates from EIA's State Energy Data System, reports OilVoice.
Iowa, Nebraska, Illinois, Minnesota, Indiana, and South Dakota collectively produced 265 million barrels of fuel ethanol out of the U.S. total of 367 million barrels.
All six states are among the top 10 U.S. producers of corn, the primary feedstock for ethanol plants, according to the U.S. Department of Agriculture (USDA).