Sharky:
If one accepts the premise that oil is a depleting asset in this world, then the worst thing would be significantly reduced petroleum prices. As they would encourage a feeling on the part of the the average consumer that "the problem is over", it would be counter productive and lead to the next price spike being even greater. I look for OPEC to step in and cut production if oil drops below $100USD. They have a finite resource and it makes no sense to give it away. Figure on oil trading in the $100 range until just after the second Tuesday in November. That is election day in the US.
Brian