Magellan Midstream Partners, L.P. engages in the transportation, storage, and distribution of refined petroleum products and crude oil in the United States. The company operates refined products pipeline that transports gasoline, diesel and aviation fuel, kerosene, and heating oil to refiners, wholesalers, retailers, traders, railroads, airlines, and regional farm cooperatives; and to end markets, including retail gasoline stations, truck stops, farm cooperatives, railroad fueling depots, military bases, and commercial airports. It also provides pipeline capacity and tank storage services, as well as terminalling, ethanol and biodiesel unloading and loading, additive injection, custom blending, laboratory testing, and data services to shippers. In addition, the company owns and operates crude oil pipelines and storage facilities; and marine terminals located along coastal waterways that provide design, installation, construction, testing, operation, replacement, and management of assets to refiners, marketers, and traders. Magellan Midstream Partners, L.P. was incorporated in 2000 and is headquartered in Tulsa, Oklahoma. As of September 25, 2023, Magellan Midstream Partners, L.P. operates as a subsidiary of ONEOK, Inc.