=4. Exxon Mobil – 4.7 million barrels per day
Exxon Mobil is the largest Company in regard of Annual revenue with a massive figure of $ 453 Billion. Founded in the year 1999, Exxon Prom’s headquarter is located in Texas, United States, with a total number of 76,900 employees. On the course of a decade Exxon Prom only saw a small increase in oil production from 4.6 million to 4.7 million Barrels per day.
3. National Iranian Oil Co. (NIOC) – 6 million barrels per day
Founded in the year 1948, National Iranian Oil co is the third largest oil company in the world in respect to oil production per day. Its Headquarter is located in Tehran, Iran. With annual revenue of $85 Billion, National Iranian Oil Co. increased its oil production from 5.1 million to 6 million barrels per day (2005 – 2015).