REX OIL Refinery, Denver, Colorado | United States Oil Infrastructure

REX OIL is an operational oil refinery situated at 899 Decatur St, Denver, Colorado, in the United States. The facility is classified under NAICS code 324110, indicating petroleum refining operations. As a refinery in the Denver area, it plays a role in supplying refined petroleum products to the local and regional market. The refinery operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA), including the Clean Air Act (CAA) Refinery MACT standards and other federal and state environmental regulations. Colorado's refining sector is subject to state-specific air quality and water discharge permits, ensuring compliance with emission limits and spill prevention measures. REX OIL contributes to the energy infrastructure of the Denver metropolitan area. Its operational status and location in an industrial zone underscore its integration into the local economy. The facility's environmental management includes adherence to EPA's Risk Management Plan (RMP) requirements and spill prevention controls, reflecting standard practices for U.S. refineries.

Located in Denver, Colorado, the refinery operates in an urban-industrial setting. The facility is subject to EPA regulations including the CAA Refinery MACT for air emissions and the Clean Water Act for wastewater discharge. Spill prevention and response plans are mandated under the Oil Pollution Prevention regulations. The local environmental context includes potential impacts on air quality in the Denver metropolitan area and the South Platte River watershed.