Fuel ethanol, a biofuel most commonly mixed with finished motor gasoline, is second only to coal as the most-transported fuel by rail. According to our Petroleum Supply Monthly, 95% of all U.S. fuel ethanol deliveries between regions in the first half of 2022 were by rail. The majority of the U.S. capacity to produce fuel ethanol (94%) is in the Midwest; however, most ethanol is consumed in other regions.