An ETFtrackingthe priceofoil, for instance, mightnotbuyoil itself, but may make a "swap" dealwithanotherfinancialfirmguaranteeing a payout if the price of oil goes up.
Pre-Sal Petroleo would also run a new contract system that allows the state to implement production-sharing agreements that would direct more of theoil windfall to the state than to theoil companies whenever theprice of oilgoesup.
In a sense it depends very much on OPEC, theoil producing countries and if theprice of crude oil internationally goesup then that's going to be reflected in the amount that we pay here on the garage forecourt.