ExxonMobil is the largest direct descendant of John D. Rockefeller's Standard Oil Company, and was formed on November 30, 1999 by the merger of Exxon(formerly Standard Oil Company of New Jersey) and Mobil (formerly the Standard Oil Company of New York).
ExxonMobil is the leading oil and gas company of the US with a market value of 356.5 billion. Additionally, it is the 7th largest company in the world by revenue. In 2014, it was designated the 2nd most profitable company on the Fortune 500 list. It was founded in 1999 after the merger of the former Standard Oil Company of New Jersey, Exxon, and the former Standard Oil Company of New York, Mobil. Its headquarters are located in Irving, Texas. ExxonMobil produces 3.921 million barrels of oil equivalent (a combined total of petroleum and natural gas) a day, which makes up for about 3% of global production.
With 37 oil refineries in 21 countries constituting a combined daily refining capacity of 6.3 million barrels (1,000,000 m3), ExxonMobil is the largest refiner in the world, a title that was also associated with Standard Oil since its incorporation in 1870.