Typically, the amount of electricity a computer uses is between 65 watts and 250 watts. The monitor often needs between 35 watts and 80 watts as well. Most desktop computers have a label that lists how much power they need, but this is generally the theoretical maximum and not an average representation.
West Texas Intermediate (WTI) is an extremely high quality crude oil which is greatly valued for the fact that it is of such premium quality, more and better gasoline can be refined from a single barrel than from most other types of oil available on the market.
The major benchmark oil prices in the world contain Brent crude oil price, WTI (West Texas Intermediate) crude oil price and Dubai/Oman crude oil price. The different type of oil are with different density and sulfur content, that leads to the oil price difference.