Since driving is so much of my business, I would welcome $1.00/gallon gasoline and diesel. Since diesel is used to move every consumable that we use, I think that lower shipping costs (or at least lower household transportation costs) would keep $$ in peoples pockets. They would have that $$ to spend on other things, and I think our economy would show an uptick.
If the mid-east oil runs out one of these days, our "home" oil will still be there.
I know, I know, I don't work in the petrolium or drilling industry.....