As of May 2026 Luberef (Saudi Aramco Base Oil Company) has a market cap of โน542.21 Billion. This makes Luberef (Saudi Aramco Base Oil Company) the world's 2941th 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.