Koch Fertilizer Enid nitrogen plant
Large load · 1619 SOUTH 78TH, Enid, OK
Koch Fertilizer Enid, at 1619 South 78th in Enid, Garfield County, Oklahoma, is a nitrogen fertilizer plant that makes ammonia, urea, nitric acid and urea-ammonium nitrate. It is operated by Koch Fertilizer Enid LLC, a subsidiary of Koch Industries. The site has two ammonia plants, rated at 1,700 and 1,900 tons per day.
Overview
The plant uses methane and nitrogen to produce ammonia, urea, nitric acid and urea-ammonium nitrate. The site is split into seven distinct plants, including two ammonia plants with capacities of 1,700 tons per day and 1,900 tons per day. Once a 2021 expansion was complete, Koch Fertilizer said the Enid site would be able to supply up to 1.8 million tons of ammonia upgrade products annually. Oklahoma DEQ documentation from October 2025 records the facility as operating.
Profile
- Electricity and grid
- The Enid expansion and modernization carried out from 2014 to 2017 cost $1.3 billion. Part of the expansion project, as engineered by Black & Veatch, included two new electric substations and power interconnections.
- Ownership and permits
- Koch Fertilizer Enid LLC operates the plant, and Koch Fertilizer is a subsidiary of Koch Industries. The facility operates under Permit No. 2022-0004-TVR3 (M-1), issued May 25, 2023. Construction permits 2022-0004-C (M-2) and (M-3) were issued July 2, 2024 and April 10, 2025.
- Recent changes
- Koch Fertilizer announced in 2021 that it was investing approximately $150 million at the Enid facility. Koch Fertilizer Enid has also requested a significant modification to its operating permit, covering increased melt capacity at the No. 2 Urea plant.
Facility
- Activity
- Ammonia, urea, nitric acid and urea-ammonium nitrate
- Industry
- Industrial
- Site type
- Facility
- Operating status
- Operating
Reported Oct 10, 2025