How about the 200+years worth of coal out there? Or 1,000+ years of energy yielded from a breeder reactor? Or maybe that giant fusion reactor at the center of the solar system?
They're all better than burning petroleum. Not because using petroleum is bad, but because using petroleum to power cars is a bit of a waste considering just how useful a substance it is chemically.
You have stated the ONLY cogent argument for not using petroleum as an energy source. That and starving the terrorists of funding.