Magellan Pipeline Company, Mid-American Pipeline and Plains All-American Pipeline are examples of major pipeline companies, as of 2015. Other major companies include Phillips 66 Pipeline Company and Sunoco Pipeline Company.
Magellan Pipeline Company has over 9000 miles of pipeline, making it the largest pipeline company in the United States. Magellan can tap into nearly 50 percent of the nation's refining capacity, and it stores more than 95 million barrels of gasoline, diesel fuel and crude oil.
Plains All-American Pipeline is a publicly traded limited partner that operates an energy infrastructure and owns a network of pipelines, terminals and storage facilities throughout the United States and Canada. The company averages handling over 4 million barrels of crude oil and natural gas per day.