$this->bbcode_second_pass_quote('', 'D')espite modern society's heavy dependence on oil for energy, most people are aware that the supply is finite. The trillion-dollar question for experts is, when will the oil supply peak? In other words, at what point will half of the world's reserves have been extracted? In 1956 geologist M. King Hubbert predicted that U.S. oil supplies would peak between 1968 and 1972. He was right—it peaked in 1970.
Today oil analysts have adapted Hubbert's formula as they try to calculate the world's oil supply. Some experts think we've already reached the halfway mark; others think we might not reach it until the middle of the century. But most analysts believe we'll reach it sometime between 2010 and 2020. Determining the peak is important, because once half the oil has been extracted from a reservoir, it becomes increasingly difficult, geologically and economically, to pump more from the same location. Companies often have to use expensive secondary recovery methods, including injecting massive amounts of water, to extract more oil.



