Standard Oil Standard Oil Standard Oil Co. Inc. was an American oil producing, transporting, refining, and marketing company. Established in 1870 by John D. Rockefeller and Henry Flagler as a corporation in Ohio, it was the largest oil refinery in the world of its time. Its history as one of the world's first and largest multinational corporations ended in 1911, when the United States Supreme Court, in a landmark case, ruled that Standard Oil was an illegal monopoly. Standard Oil dominated the oil products market initially through horizontal integration in the refining sector, then, in later years vertical integration; the company was
Vacuum Oil Company internal-combustion engines. Ewing sold his interest to Everest, who carried on the company. Vacuum was bought by Standard Oil in 1879. It originated the Mobil trademark in 1899 (as "Mobilgas;" "Mobiloil" came later). When Standard Oil was broken up in 1911 due to the Sherman Antitrust Act, Vacuum became an independent company again. Vacuum Oil and Standard Oil of New York (Socony) merged in 1931, after the government gave up attempts to prevent it. At the time, the newly combined company made Socony-Vacuum Corp. the 3rd largest oil company, worldwide. Everest remained with the firm, and was given a salaried