About Marquis Energy

Marquis Energy began as a 100 million gallon per year Fagen-ICM ethanol facility in 2008. Drawing from a strong track record of growth, Marquis Energy completed its expansion in 2015, making it the largest dry-mill ethanol facility in the United States with a production capacity of about one million gallons of fuel grade ethanol per day.


Hennepin chosen as site for Marquis Energy LLC

Based upon the superior logistics and its location in the middle of the Corn Belt, Hennepin, IL was chosen as an ideal location for our facility.

Construction Began

After a contract was signed with ethanol plant builder Fagen and technology provider ICM, the team broke ground in 2006.

First Grind

The first load of corn was received on April 20, 2008 and the process of producing ethanol officially began.


The first official gallon of ethanol was produced at the facility establishing Marquis Energy as an operational ethanol production facility.

First Shipment

The first batch of ethanol produced was shipped via rail to a domestic destination.

First international DDG shipment

Marquis Energy’s position on the Illinois River provides efficient access to export markets via the American inland waterway system and the United States Gulf Coast. Due to this logistical advantage, Marquis now ships a majority of its DDG by water.

First Corn Oil Spun

Marquis Energy installed two corn oil separators on October 22, 2008. Marquis now produces 35 million pounds of corn oil annually.

100 Millionth Gallon Produced

Marquis exceeded 100 million gallons of production on April 20, 2009.

Ethanol Production Rate Exceeds 125 MGY

Marquis exceeded 125 million gallons of production on November 1, 2009.

Acquisition of Necedah, WI Facility

In July of 2010, Marquis acquired a 50 million gallon per year Fagen-ICM ethanol facility, expanding the Marquis businesses to include Necedah, Wisconsin.

DSP Certification

A distilled spirits operating permit (DSP) allows a facility to ship ethanol without first denaturing the product. This permit is a key requirement for being able to meet international demand for fuel-grade ethanol. Our facility was one of the earliest corn ethanol facilities to acquire this designation.

First international Ethanol Shipment

Marquis Energy possess a unique logistical edge in the facility’s position on the Illinois River. Marquis continues to capitalize on this advantage, efficiently shipping large volumes of its ethanol across the globe.

ISCC Certification

The International Sustainability and Carbon Certification program was one of the first programs to meet the stringent requirements of the European Union’s Renewable Energy Directive. Being certified, we are able to demonstrate that our facility meets a high level of environmental sustainability in the production of renewable fuel. We were the first corn-based ethanol facility in the US to successfully complete an ISCC audit and become certified.

Marquis Energy Hosts Growers

Marquis invited over 500 of our farmers out to view brand new farm equipment from New Holland and enjoy lunch with Richard Childress from RCR Racing and view the American Ethanol #3 Car.

Registered DDGS with People’s Republic of China

Marquis Energy was the second ethanol plant in the US approved to sell DDGS into China. In 2013, China shut off imports to plants that were not registered, but we were able to continue our export program and garner premiums due to the supply shortages and the quality of our product.

Ethanol Production Rate Exceeds 150 MGY

Marquis exceeded 150 million gallons of production on October 1, 2014.

30 New Employees Begin Training

30 new employees began training on the south unit.

First Load of Corn Accepted at South Unit

On Monday, December 7, 2015 the first load of corn was accepted to begin filling the south unit silos.

First Grind at South Unit

The first grind at the south unit occurred on January 9, 2016 and the process of producing ethanol at the new unit officially began.

First South Unit Team Meeting

On January 20, 2016 the first full team meeting was held in the completed south unit control center.  Team members, new and veteran alike, enjoyed using the new space for the monthly meeting.

Featured Leadership

Mark Marquis

Chief Executive Officer

Jason Marquis

Chief Operations Officer

Built On

Experience & Expertise

Our Advantage

Based in Hennepin, IL Marquis Energy is strategically positioned for global distribution via direct access to the Illinois River, a Class I railroad, and numerous interstate highways. Our production team uses its extensive knowledge of our facility's Fagen-ICM design to develop industry leading production levels. High efficiency, worldwide market access, and a production capacity exceeding 300 million gallons contribute to our proven track record. Our risk management strategy routinely provides the ability to capture opportunities in various markets.