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How is BP connected to Standard Oil?

BP’s connection to Standard Oil comes through several former parts of John D. Rockefeller’s oil empire. Beginning in 1970, BP combined its U.S. assets with Standard Oil Company (Ohio), or Sohio, and acquired the rest of the company in 1987. BP later merged with Amoco, formerly Standard Oil of Indiana, in 1998 and acquired ARCO, another company with Standard Oil roots, in 2000.