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;
Oman Oil Company across Oman under the brand name OmanOil. Oman Oil Company Oman Oil Company (OOC) is a national petroleum investment company of Oman. It is wholly owned by the Government of Oman . Creation of the Oman Oil Company was proposed in 1992 and the company was established in 1996. In addition to the oil and gas exploration and production, the company also invests in power generation, energy transportation and infrastructure, oil refining, and petrochemicals manufacturing. It has invested to over 50 projects across 15 countries. Oman Oil Company owns a 49% stake in the Oman Oil Marketing Company which has