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;
Madagascar Oil Madagascar Oil Madagascar Oil SA is an oil company operating in Madagascar. Its parent company was originally Madagascar Oil Limited (Mauritius). In March 2006, simultaneous with a US$60m fund raising to North American managed hedge funds, the parent company was reorganised as Madagascar Oil Limited in Bermuda. It is the principal onshore oil company in Madagascar in terms of oil resources and land. Madagascar Oil was founded in 2004 by Canadian engineer Sam Malin and Australian businessman Alan Bond. Madagascar Oil's operational office is in Antananarivo, Madagascar and its administrative offices are in Hamilton, Bermuda and Port Louis, Mauritius Texas.