I never argued against speculation. Buying and selling future contracts on three major markets is what sets the price after all. The other factors play in that.
Highly levered margin speculation of paper "demand" is the single largest contributor to price increases. The additional liquidity shoved into this market by hedge funds with minimal direct input into "price discovery" is huge, only a very ignorant person such as yourself would claim anything different.
Futures contracts are like Option-ARM mortgages for speculators, minimal capital deployment and maximum levered return. You put down a very small amount, while you may have to mark to market, it isn't always a huge deal, and realize huge levered profits. Since the capital is so small even a moderate hedge fund can afford to continuously bid up futures.
It may be a "zero sum" game, but when you also can profit off the physical market in return, it isn't zero-sum.
What's laughable is that even in the face of overwhelming evidence that the market is rigged for the benefit of the few, you still blame supply/demand. Exxon's own CEO said that the market is effectively 40% overpriced right now. The 60-70 price IS supply/demand, the rest of it is levered paper supply/demand.
He's also probably hedging a bit. Considering oil went from 60 to 144 to 40 within the span of 24 months with the bulk of the major movements in less than 12, you come to see that they weren't taking a $20 loss on the back-end of that, nor were they completely flat on the front-end.
As far as 6%, please. As with anything else, supply/demand is based upon price. Peak oil is a joke.