Magellan Midstream Partners, L.P.: insider trades · United States · SEC (Form 4)

About Magellan Midstream Partners, L.P.

Magellan Midstream Partners, L.P. was a U.S. midstream energy infrastructure company historically listed on the NYSE under the ticker MMP and headquartered in Tulsa, Oklahoma, United States. The partnership was formed in August 2000 as a Delaware limited partnership and became one of the best-known names in North American refined-products logistics before its 2023 acquisition by ONEOK. For investors, the key point is that Magellan’s model was infrastructure-based rather than commodity-production-based: cash flow depended primarily on transported volumes, storage utilization and tariff structures rather than direct exposure to oil prices. Before the merger, Magellan’s core business centered on the transportation, storage and distribution of refined petroleum products and crude oil. Its refined-products segment was anchored by an approximately 9,800-mile pipeline system, 54 terminals and two marine storage terminals, making it one of the largest refined-products pipeline networks in the United States. The company also operated a crude-oil segment with roughly 2,200 miles of pipelines, material storage capacity and a condensate splitter. Historically, Magellan also maintained an ammonia pipeline business, which broadened its logistics footprint and reinforced its specialty-infrastructure profile. Magellan’s competitive position was built on scale, asset quality, geographic reach and the essential nature of its network. Its pipeline and terminal system linked key refining centers, demand hubs and distribution corridors across the central United States, giving it an important role in moving gasoline, diesel and crude oil to market. Because many of its revenues were supported by long-term contracts or tariff-based arrangements, the business had a more defensive cash-flow profile than upstream energy companies. In the midstream sector, that combination of regulated-like economics, strategic assets and customer relationships created meaningful barriers to entry. From a product and service perspective, Magellan’s offering included pipeline transportation, terminaling, storage, blending and related logistics services for refined products and crude oil. Its assets were particularly relevant to fuel distribution across the U.S. Gulf Coast, Midwest and broader domestic refining network, where connectivity and reliability are critical. The most important recent corporate development was the announcement and completion of ONEOK’s acquisition of Magellan in 2023, a transaction valued at approximately $18.8 billion. As a result, Magellan ceased to be an independent publicly traded issuer after the deal closed. For market participants reviewing legacy filings or insider activity, that transaction is the defining recent event and should be viewed as the end point of Magellan’s standalone public-company history on the NYSE in the United States.