Koch Enid Nitrogen Plant, Oklahoma

The Koch Fertilizer Company is the third largest producer of nitrogen fertilizers in the USA, and is part of Koch Industries, the multi-national energy and chemical company owned by the notorious Koch brothers, and often rated as the second largest privately held company in the USA (after Cargill). Koch got into nitrogen in 1988, when it purchased ammonia pipelines that connect many of the plants in the USA (including this one near Enid, Oklahoma) with distribution terminals.