Regarding oil..."If a tsunami of rabid investment and speculative commodity derivative demands hits the commodity markets, it must drive the forward price more above marginal cost than in a
normal bull cycle. The higher the price is driven above marginal cost the more new supply will be encouraged. These high prices will also lead to a more assiduous effort by commodity consumers to economize and substitute, thereby rationing demand. If unusual commodity derivative demands take prices very high and on a sustained basis, the resulting surpluses that will eventually take down these prices will be all the larger."
Here is the presentation on Oil, Metals & Gold
Veneroso Frank-World Bank Presentation Commodity Bubble Metals Manipulation-6!14!2007
by Todd Sullivan (Value Plays)