The Charles City plant, located on 225 acres about 35 miles southeast of Mason City and 175 miles south of Minneapolis, produces ethanol, distillers grains livestock feed and fuel- and feed-grade corn oil. With original startup in April 2007, the plant was acquired by Valero in April 2009. Corn is purchased from within 50 miles.

By the Numbers


In Our Community

Charles City Employees Give Back

Valero Charles City Volunteer Group

Volunteer Hours

From 2017-2021, Charles City employees have volunteered more than 5,600 hours to local nonprofits.

Valero Texas Open golf ball

Benefiting Children

A total of $145,000 from the Valero Texas Open and Benefit for Children has been given to local charities nominated by employees over the last five years. 

Valero volunteer t-shirt

United Way Giving

Since 2017, more than $320,000 contributed to the local United Way through employee pledges, additional donations and company matches.

Safety Awards & Honors

Valero Charles City Star Award Luncheon


Valero’s first Super STAR award recipient, under the company’s STAR Metric awards, after going four consecutive quarters with no incidents in five key areas of process safety, reliability, environmental, rail safety, and policy and procedure compliance.

Third Valero Chairman’s Renewables Plant Excellence Award in 2018 after incurring no employee or contractor injuries for the year, and going more than six years without an environmental incident and more than three years without a reliability event.

Local Information

Farmers Work Hard to Produce and Harvest Corn

At Valero, we work hard to maximize the value of U.S. corn production by connecting farmers to premium markets across the globe.

Contact Us Plant Manager: Chad Buffington