The reason oil prices have gone up over the past couple of years has nothing to do with peak-oil as far as I'm aware; it has to do with speculators driving up the prices of oil.
Well, I'm not an economics expert so I cannot conclude either is correct. I do invest, but I'm not very into derivatives.In my opinion this is incorrect. The major reason why gas prices spiked is due to speculative derivatives and devaluation of the US dollar (the reserve currency to buy oil between countries).