There are a number of important dates in the history of the ExxonMobil Group that you should know, of which the details are as follows. Firstly, the Standard Oil Company, or SO, was originally created in 1870. This was disbanded by the Supreme Court in 1911 into 34 independent companies including the Standard Oil Company of New Jersey, or SONJ, which became Exxon and the Standard Oil Company of New York which became Mobil. In 1966 the Socony Company became known as the Mobil Oil Corporation. In 1972 SONJ became the Exxon Corporation and finally in 1999 Exxon and Mobil merged to become the ExxonMobil Company.