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;
Sirte Oil Company Sirte Oil Company Sirte Oil Company (SOC) () is an oil and gas company in Libya operating under the state-owned National Oil Corporation (NOC). The company is located in Brega SOC’s operations include oil and gas exploration and production (E&P) and manufacturing. The company was initially known as Esso Standard Libya Inc., the first company to discover commercial quantities of crude oil in the Zelten oil field. In 1981, Exxon (parent company of Esso Standard) withdrew their Libyan operations, after which Sirte Oil Company was formed as a NOC subsidiary. In 1986, SOC took over the assets of Grace Petroleum,