The Phillips 66ers were an amateur basketball team located in Bartlesville, Oklahoma, and sponsored and run by the Phillips Petroleum Company. The 66ers were a national phenomenon that grew from a small-town team to an organization of accomplished amateur athletes receiving national and worldwide attention. Under the sponsorship of the company's owner, Frank Phillips, the team, which began playing in 1919, participated in the Amateur Athletic Union, the nation's premier basketball league before the National Basketball Association. Between 1920 and 1950, some of the strongest basketball teams in the United States were sponsored by corporations: Phillips 66, 20th Century Fox, Safeway Inc., Caterpillar Inc., and others.

The Phillips 66 Company is an American multinational energy company headquartered in Westchase, Houston, Texas. Its name, dating back to 1927 as a trademark of the Phillips Petroleum Company, helped ground the newly reconfigured Phillips 66. The company today was formed ten years after Phillips merged with Conoco to form ConocoPhillips. The merged company spun off its refining, chemical, and retail assets into a new company bearing the Phillips name. It began trading on the New York Stock Exchange on May 1, 2012, under the ticker PSX.