It's the speculation and the diving of the US dollars...otherwise explain to me that how oil demand has increased over 100% over last year to justify the double increase in oil price. The US oil usage has actually decrease more than 1%...Don't tell me that the Chinese and Indian have double their oil comsumption in a short year while the US ecomony is going into a recession.
These kinds of specualtions is pretty common in third world countries where the prices of commodies are unregulated and are subjected to speculations...We the US are becoming more alike of a the 3rd world country

but we still are superpower in term defendse capability