As of March 2025 Oneok has a market cap of €57.24 Billion. This makes Oneok the world's 321th 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 Mar 19th, 2025 the market cap of Oneok was reported to be: