In 1983, Land O’Lakes, Inc., a Minnesota corporation, Farmland Industries, a Kansas corporation, and Boone Valley Cooperative Processing Association, an Iowa corporation doing business only in soybean processing, entered into a joint venture agreement to form one cooperative soybean processing company. On August 31, 1983, Land O’Lakes Inc. and Farmland Industries combined their soybean processing plants located at Dawson, Minnesota; Sheldon, Iowa; Fort Dodge, Iowa; Sergeant Bluff, Iowa; St. Joseph, Missouri; and Van Buren, Arkansas into a new company.

Shortly after the reconfiguration in 1983, the new company name "Ag Processing Inc a cooperative" was adopted with the corporate logo AGP

Soybean processing is AGP's primary business. AGP is largest soybean processor in Iowa and the fourth largest soybean processor in the United States based on capacity. Additionally, AGP is the largest COOPERATIVE soybean processor in the world. Every month, AGP plants acquire more than 18 million bushels of soybeans for processing. That’s the equivalent of the soybeans grown on 15 thousand acres per day. AGP annually purchases and processes more than 5.5 million acres of members’ soybeans. AGP continues to expand crushing capacity with the addition of plants in Emmetsburg, Iowa (1997) and Hastings, Nebraska (1999).

In 1985, AGP began refining soybean oil by purchasing equipment for installation in an existing building located at the St. Joseph, Missouri soybean processing plant. Refining capacity was expanded in 1991 with the purchase of a Denison, Texas refinery. Then in 1993, the Sherman, Texas refinery was acquired through a lease agreement. Shortly after the acquisition of the Sherman plant, a new corporation, AGP, L.C. was formed with Archer Daniels Midland and AGP, having equal ownership of the two Texas refineries. In 1994, the Denison plant production (located 9 miles from Sherman) was consolidated into the Sherman plant and the Denison plant was closed. In April of 2000, shifting market conditions led to the closing of the Sherman refinery as well. However, AGP’s refining capacity expanded with the completion of a refinery in Eagle Grove, Iowa during January 1998, and a new vegetable oil refinery at Hastings, Nebraska, which became operational in January of 2001. AGP currently is the fourth largest vegetable oil refiner in the United States.

The company purchased a grain terminal at Lincoln, Nebraska in 1990. This was sold to a new corporation, AGP Grain Cooperative, effective February 1, 1991, where Ag Processing Inc has the major equity position. A grain terminal was acquired at Atchison, Kansas in June, 1993 and a second terminal located in Lincoln was leased in 1994 by AGP Grain Cooperative.  AGP Grain Cooperative members voted to merge the cooperative into a wholly owned subsidiary of AGP called AGP Grain Marketing, Inc. on August 31, 2003. On August 31, 2004 the subsidiary name was changed to AGP Grain Marketing, LLC.

AGP, L.P. sold its grain division to Ag Processing Inc in July,1994 and it is called AGP Grain, Ltd. AGP Grain, Ltd. has merchandisers working out of an office located in the Minneapolis Grain Exchange and has elevators and terminals located in North Dakota and Minnesota.

AGP operates a grain merchandising division which buys and sells grains on a regional basis.  AGP also operates a grain terminal at Atchison, Kansas and 2 grain terminals at Lincoln, Nebraska.  Merchandisers work out of the Omaha corporate office.
 

In 1991, Ag Processing Inc purchased the North American Ag Products Division of International Multifoods, Minneapolis, Minnesota. This business was comprised of Supersweet Feeds, and a grain operation all in the US, and Masterfeeds a Canadian feed manufacturing business. A partnership was formed with Archer Daniels Midland with their contribution of ADM Feed Company and a pet food division. Two organizations, AGP, L.P. in the U.S. and AGP, Inc. in Canada were formed. In 1994, AGP, Inc., in Canada, expanded its operations with the purchase of five feed mills located at Alberta, Canada. In July 2001, ADM acquired the U.S. and Caribbean operations of Consolidated Nutrition, L.C., from AGP. As part of the transaction, AGP acquired ADM’s 50 percent interest in AGP, Inc. in Canada, resulting in Masterfeeds being a wholly owned subsidiary of AGP.

Ethanol: In 1994, an idle corn ethanol plant located in Jasper, Tennessee was purchased. The plant was dismantled and relocated to Hastings, Nebraska in 1995. On November 21, 1995 the ethanol plant began operations. Production capacity continues to expand.

Methyl Esters: In 1997, AGP expanded in many areas with completion of a soybean methyl ester plant in Sgt Bluff, Iowa. AGP markets soy methyl ester products under the SOYGOLD brand. They are used in a wide variety of applications including soydiesel fuel, solvents, and spray adjuvants (used to enhance the effectiveness of agricultural chemicals). AGP built a new soy methyl ester plant in St. Joseph, MO that became operational in the fall of 2007.