Exxon's a brand of fuel sold by ExxonMobil, and from 1972 to 1999 was the corporate name of the company previously known as Standard Oil of New Jersey or Jersey Standard. History Exxon formally replaced the Esso, Enco, and Humble brands on January 1, 1973, in the USA. The name Esso was a trademark of Standard Oil Company of New Jersey and attracted protests from other Standard Oil spinoffs because of its similarity to the name of the parent company, Standard Oil. As a result, the company was… (More on Exxon)