Saudi Aramco is substantially larger than ExxonMobil when measured by market capitalization, daily crude oil production volumes, proven hydrocarbon reserves, and net annual income. While ExxonMobil is a massive publicly traded multinational energy titan with extensive global operations, Saudi Aramco routinely commands a much higher market valuation and produces millions more barrels of oil per day at significantly lower extraction costs, making it one of the most valuable corporations in the entire world.