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 North Sea crude oil fields are still fairly full, and are arguably the second most influential oil field in economic terms. Texas, once the world's major oil region, is now almost completely dry. In 1859 Edwin Drake sank the first known oil well, this was in Pennsylvania. Since this time oil and petroleum production figure grew exponentially. Originally the primary use of petroleum was as a lighting fuel, once it had been distilled and turned into kerosene. When Edison opened the world's first electricity generating plant in 1882 the demand for kerosene began to drop.