Following Follow this topic Unfollow Follow this topic Crude oil ...more info Crude oil or petroleum comes in hundreds of different grades. West Texas Intermediate (WTI) and Brent crude oil are the most commonly referred to and are deemed high quality. Russia is the world’s largest producer and exporter of crude oil, followed by Saudi Arabia. The US is the world’s third-largest oil producer and <br/>the largest importer of oil. Sign up to comment Characters left: Attach images or documents You can only attach a maximum of 10 images Browse... Tag your Squawks to reach a wider audience. Close Say it now! Show next 3 calender events Be the first to write a squawk about crude oil by typing into the box above.