Ok I'll bite and here's a stab:
Aside from the obvious increase in supply eventually (Keeping in mind 87% of the continental shelf remains unexplored and untapped, not to mention the huge oil shale deposits out west, and of course ANWR and the Cuban Basin so that "we only have 3% of the world's petroleum reserves is a red herring),
the oil market is highly speculative (six cents on the dollar gets you in the game). Once the world realizes we are commited to this endeavor, the price of oil will drop. Yes it is a LOT cheaper for the Saudis to extract oil (about five bucks/barrel), but an unprecendented and unexpected commitment on our part will definitively go a long way to ameliorate the issue.
