Valero Hartley is a dry-mill ethanol plant located in Hartley, Iowa. This facility began operations in August 2008 and has the capacity to produce 110 million gallons of ethanol per year (MMGY) using a dry-grind production method and state-of-the-art technology to maintain industry-leading standards in production, safety and product quality. The plant has also been designed to be among the most environmentally friendly in the industry.