Heron Lake BioEnergy LLC engages in the production and sale of ethanol and co-products. It offers fuel grade ethanol, which is used as an octane enhancer in fuels; an oxygenated fuel additive that can reduce ozone and carbon monoxide vehicle emissions; a non-petroleum-based gasoline substitute; and as a renewable fuel to displace consumption of imported oil. The firm also sells distillers grains as animal feed for beef and dairy cattle, poultry and hogs. The company operates through two segments: Ethanol Production and Natural Gas Pipeline. Heron Lake BioEnergy was founded on April 12, 2001 and is headquartered in Heron Lake, MN.