(Second, if there is a big bolus of inflation, that could change, so I'm using 2005 dollars as a reference.)
(Third, my prediction includes an estimated 12.5% inflation along with the demand increase in China, but a demand slowing in the US as we slide into recession.)
1. Highest price in 2006: October (of course) due to Hurricanes. $84 (in 2005 dollars). Accounting for 12.5% inflation (2005->2006), this could be nearly as high as $100 ($97.87), but I'm predicting it stays below $100.
1a. Should it hit $100, both options on the CALL and PUT side will have a profound effect upon prices so you might see it BOUNCE off $100 before driving right through.
1b. It won't stay above that point for long, again because of the unwinding of the options. A lot of money will change hands, but we'll end up below that. (In essence, crossing $100 will be because someone is trying to manipulate the market and make money on options.)