Renewable Energy Group, Inc. provides lower carbon transportation fuels in the United States and internationally. The company utilizes a production, distribution, and logistics system to convert natural fats, oils, and greases into advanced biofuels. It operates through Bio-Based Diesel, Services, and Corporate and Other segments. The company produces bio-based diesel from various low carbon feedstocks, including distillers corn and used cooking oils, and inedible animal fats, as well as from soybean and canola oils. It also purchases and resales bio-based diesel produced by third parties; and sells RD blended with petroleum-based diesel, renewable identification numbers and California low carbon fuel standard credits, raw material feedstocks from third parties, processed bio-based diesel, related byproducts, and renewable energy government incentive payments. In addition, the company provides day-to-day management and operational services to bio-based diesel production facilities; and construction management and general contracting services for the construction of bio-based diesel production facilities. Further, it engages in the trading of petroleum-based heating oil and diesel fuel, including the petroleum portion of sales of biodiesel and RD blended with petroleum-based diesel. As of December 31, 2021, the company owned and operated eleven biorefineries, consisting of nine locations in North America and two locations in Europe. Renewable Energy Group, Inc. was founded in 1996 and is headquartered in Ames, Iowa. As of June 13, 2022, Renewable Energy Group, Inc. operates as a subsidiary of Chevron Corporation.