What are the 34 companies that came from standard oil?

Standard Oil, founded by John D. Rockefeller, was broken up in 1911 into 34 companies due to antitrust regulations. Some of the most notable companies that emerged from this breakup include ExxonMobil, Chevron, and ConocoPhillips. Other significant entities include Amoco, Arco, and Marathon Oil. Many of these companies have since merged or restructured but trace their origins back to Standard Oil.