Lias:
If we had more domestic oil supply, we'd be less dependent on foreign oil.
Instead of looking for more oil, we might be better off investing in ways of getting by with no oil, since that will be our future anyway. In the meantime, America has become a net exporter again thanks to fracking and the glut in supplies has crashed the price. I don't see a lot of benefit in spending tons of money on adding even more oil to the stockpile.