West Texas Intermediate (WTI) is a type of crude Oil used as a benchmark in estabishing oil prices and the underlying commodity of NYMEX (New York Mercantil Exchange) Crude Oil futures trading. This is normally the type of oil referenced in Western news and business reports about crude oil prices, alongside North Sea Brent Blend crude oil.

West Texas Intermediate (WTI) is a very light crude, lighter than Brent crude oil which is fairly light. It contains approx 0.24% sulfur, rating it a "sweet" crude, sweeter than Brent oil. Its properties and production site make it ideal for being refined in the USA, mostly in the Midwest and Gulf Coast regions of the country.

Current and historical oil price data for West Texas Intermediate (WTI) can be found at the Energy Infomation Administration, Department of Energy of the US government website www.eia.doe.gov