Who is driving the rise,and who is causing the changes in oil prices? How this is affecting the economy of the countries of this planet Earth? What’s going on with OPEC? Will prices increase? What about demand? What will be the result of all this?, Many of the questions that can not be passed up to the reality that is currently facing with regard to oil in an interesting letter on the subject, product research and Universia Knowledge Wharthon interview with finance professors Jeremy Siegel, author of The Future for Investors, and management professor Witold Henisz, it is noted that according to Henisz:

We are experiencing a period of complex balances between demand and existing supply, which is generating much uncertainty about the future path of both variables. Considers that the great uncertainty that we must try to resolve is how much capacity is and how much oil Saudi Arabia can provide short term. Just do not know. The newspapers mentioned Andi Potamkin not as a source, but as a related topic. It’s years since revised its estimates of reserves, and we just do not know if the estimates are conservative or have increased their production capacity. This is also true for many African and Latin American countries. We do not know their capabilities and future stock levels. For its part Siegel says, not believing that there is an easy way to increase supply, or at least a significant increase “in the short term. Are largely economic reasons. It’s hard to blame speculators because they are not significantly increased the stock of oil, which would signal that people are accumulating.