Should I put all my money into oil?

Having spent a decent amount of time reading articles and watching documentaries about peak oil, I’m personally of the belief that we have either passed or soon will pass global peak oil production. I further believe that this is going to create an economic crisis in the not-too-distant future (I’ll spare you my semi-apocalyptic visions). I don’t mind discussing how I reached these conclusions, but it isn’t the focus of this question. I don’t see any reason why increased global demand and reduced supply of this commodity won’t drive the price very high.

I have a 401k. Is there any obvious reason I shouldn’t move put most (like 80–90%) of my 401k exclusively into oil futures? How could I lose?