Marathon Oil in North America, including $600 million in the Eagle Ford and $200 million in the Bakken formation. The company owns 277,000 net acres in the Bakken formation. Marathon began as The Ohio Oil Company in 1887. In 1889, it was purchased by John D. Rockefeller's Standard Oil. It remained a part of Standard Oil until Standard Oil was broken in 1911. In 1930, The Ohio Oil Company bought the Transcontinental Oil Company and established the "Marathon" brand name. In 1962, the company changed its name to "Marathon Oil Company". In 1982, Mobil made a hostile offer to buy the company;
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