Marathon Refinery, Mandan, North Dakota: Petroleum Refining Facility

Marathon Refinery is a petroleum refinery located in Mandan, North Dakota, United States. Operating under the NAICS code 324110, it processes crude oil into gasoline, diesel, and other petroleum products, serving the regional energy market. As part of Marathon Petroleum Corporation's network, it plays a key role in the state's oil infrastructure. The refinery operates under U.S. environmental regulations, including the EPA's Clean Air Act Refinery MACT standards and the Clean Water Act. Its refining complexity is typical for a medium-sized inland refinery, with a focus on converting Bakken crude into high-demand fuels. The facility's location in North Dakota places it within a major oil-producing region, benefiting from local feedstock availability. Environmental considerations include air emissions management and water usage. The refinery's inland location reduces coastal spill risks but requires robust groundwater protection. Its operational status underscores its importance to the regional fuel supply chain, supporting local economies and transportation networks.

The refinery's inland location in North Dakota reduces the risk of coastal oil spills but necessitates careful management of groundwater and air quality. Operations are subject to EPA regulations under the Clean Air Act and Clean Water Act, including Refinery MACT standards for hazardous air pollutants. The facility's proximity to the Missouri River requires adherence to water discharge permits to protect aquatic ecosystems.