Standard Oil Successor Companies; After Breakup Bought by/Merged with Then Became Now Called; Standard Oil of New Jersey, or Esso (S.O.) Humble Oil: Exxon: ExxonMobil: Standard Oil of New York: Vacuum Oil: Mobil: ExxonMobil: Standard Oil of California: Chevron: Standard Oil of Indiana: Amoco: BP: Standard Atlantic: Richfield Oil: Atlantic Richfield (ARCO) Sunoco Although their names have changed over the years, Chevron (CVX), Exxon Mobil (XOM), and ConocoPhillips (COP), among others, all share a Standard Oil pedigree. Standard Oil Company. In 1870, Rockefeller, together with his brother William, Henry M. Flagler and Samuel Andrews, established the Standard Oil Company of Ohio. This occurred while the petroleum refining industry was still highly decentralized, with more than 250 competitors in the U.S.