American Made


We work with locally grown corn to produce cleaner and greener renewable fuel and animal feed. Ethanol improves the air quality by reducing vehicle emissions, as well as increasing energy independence and lowering fuel prices.  We support and appreciate the local producers and communities who surround us!


Wherever You Are, We Aren't Far Away

North Dakota





Find Us

Our Locations

Guardian Energy Operates in four locations in the Midwest and performs in the top quartile of all ethanol plants in yields and efficiencies.

Renewable Products Marketing Group
Shakopee, MN
Lima, OH
Guardian Energy Headquarters
Prior Lake, MN
Janesville, MN
Hankinson, ND


Top Performing Ethanol Producers In The US

Guardian began in 2009 and has since grown to be a multi-plant ethanol production group. It started with a community of farmer-owned ethanol cooperatives looking for ways to increase their investment in the ethanol industry.


More Than Ethanol

Guardian Energy is one of the largest Ethanol Producers in the US. We purchase local corn to use in our processing facilities, where we produce ethanol, animal feed (DDGS), and corn oil.

Grinds 50 million bushels of corn each year

Produces 338,000 tons of DDGS

Produces 150 million gallons of corn starch based ethanol

Produces 46 million pounds of corn oil

Produces 4 million gallons of corn kernel fiber, low carbon intensity ethanol


Ethanol is renewable fuel made from corn. Ethanol can be blended with gasoline, creating blends such as E10, E15, and E85.

Cellulosic Ethanol

Cellulosic ethanol is a second-generation biofuel produced by converting corn fiber into ethanol. Cellulosic ethanol has a lower carbon intensity than ethanol produced from corn starch.


Distiller's Dried Grains with Solubles (DDGS) is a valuable feed ingredient. It's what remains of a corn kernel after it is converted into ethyl alcohol. DDGS contains high levels of protein and fat, so it's great for hogs, poultry, and cattle.

Corn Oil

Distillers corn oil is a crude vegetable oil product that is created when the oil is separated from the syrup. The co-product is mainly used as a feedback for biofuel, animal nutrition, and industrial applications.


Empowering Careers, Fueling The Future

We enlist the world's best minds to create the best possible results for our company, our industry, and our community.