Renewable Energy Group, Inc. provides lower carbon transportation fuels in the United States and internationally. The company utilizes an integrated production, distribution, and logistics system to convert natural fats, oils, and greases into advanced biofuels. It operates through Biomass-Based Diesel, Services, and Corporate and Other segments. The company produces biomass-based diesel from various carbon feedstocks, including distillers corn and used cooking oils, and inedible animal fats, as well as from soybean or canola oils. It is also involved in the purchase and resale of biomass-based diesel, petroleum-based diesel, renewable identification numbers, California Low Carbon Fuel Standard credits, and raw material feedstocks acquired from third parties; and sale of biomass-based diesel produced under toll manufacturing arrangements with third party facilities using its feedstocks. In addition, the company provides day-to-day management and operational services to biomass-based diesel production facilities; and construction management and general contracting services for the construction or upgrade of biomass-based diesel production facilities. Further, it sells petroleum-based heating oils and diesel fuels, as well as operates fermentation facilities. The company owns and operates a network of 13 biorefineries, including eleven biorefineries located in the United States and two biorefineries located in Germany. Renewable Energy Group, Inc. was founded in 1996 and is headquartered in Ames, Iowa.