ExxonMobil ExxonMobil Exxon Mobil Corporation, doing business as ExxonMobil, is an American multinational oil and gas corporation headquartered in Irving, Texas. It 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 the Standard Oil Company of New Jersey) and Mobil (formerly the Standard Oil Company of New York). The world's 9th largest company by revenue, ExxonMobil from 1996 to 2017 varied from the first to sixth largest publicly traded company by market capitalization. The company was ranked ninth globally in the Forbes Global 2000 list
Canadian petroleum companies resulted in a shift in focus over to patent producing research and development. Cenovus Energy has used its patents as a tool to negotiate deals. Profiled and ranked is every Canadian oil and gas company with a market cap ranking top 500 worldwide and the eight largest by revenue (Nexen made Forbes list but not the top 500 companies according to market capitalization but it had the highest revenue among all other petroleum companies according to this list, addax petroleum became part of Sinopec). Eight of the ten most profitable companies of the oil and gas sector operating in Canada