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;
Standard Vacuum Oil Company in the region. This led to the beginning of the petroleum industry in China: Before 1937, Chinese oil production was measured in quarts and, in its crude condition, was used solely as a lubricant. This first well, developed under the most primitive of conditions and with relatively untrained personnel, began to produce over twenty barrels of oil a day. In time, with equipment brought in from Szechuan and elsewhere and the development of several distillation plants, nine more wells were drilled in the immediate area. A letter from my father to T. E. Mobley of Standard Vacuum in June 1942