The West Texas Intermediate is, together with Brent Crude, one of the most important western oil. It is usually called light and sweet, because of its low density and low sulphur (less than 0.5%) concentration. The amount of the API gravity is 39.6 and the specific gravity 0.827.

Also named Brent Sweet Light Crude, Oseberg, Ekofisk and Forties. Its source is the North Sea. The mostly known markers are Brent Blend, London Brent and Brent petroleum. As well, it makes two thirds of the world's internationally traded crude supplies.

The so called Bonny Light crude is one of the most desired oils in the industry. What does it make it such important for the Western countries, who are the best providers, what it is the actual value of a barrel and what can you produce best of it?