High Gas Prices!!

With gas prices as high as they are, and all the controversy going on in the Middle East, should Americans be concerned with higher gas prices, and even more the lack of oil in the future? While many people believe gas prices will eventually fall, this still doesn't help our oil situation. Experts predict that there will still be a large oil supply 500 years from now. So what the concern? About half of the oil left in the world is over seas, and hasn't been tapped. If it is not our oil, then we will be forced to pay high prices for it, especially as it begins to diminish. What should the United States do?