As of October 2026 Exxon Mobil has a market cap of โฌ689.26 Billion. This makes Exxon Mobil the world's 20th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Oct 29th, 2026 the market cap of Exxon Mobil was reported to be: