If the past is prelude, Iran will regret causing higher oil prices. High oil prices will spur conservation and development of alternative energy supplies -- that will result in a crash in the price of oil, which may last for decades.
From your keyboard to God's ears. Although I should point out that it was not that long ago on FR that merely mentioning "conservation" and, Heaven forfend, "alternative energy" could get you into a pretty serious flame war. Interesting how $3 gas focuses the mind.
One can only hope. I hate blame shifting.