The story
The company went public through an initial public offering in February 2006 with a listing on the New York Stock Exchange. Company executives, including its CEO Michael Mears, rang the NYSE closing bell on February 8, 2016.
In May 2023, midstream energy services provider Oneok agreed to acquire Magellan in a cash-and-stock transaction valued at US$18.8 billion, including debt. The transaction completed in September 2023 and Magellan became a fully owned subsidiary of Oneok.
From Wikipedia’s article on Magellan Midstream Partners, shared under CC BY-SA 4.0.3