Good point, the USA doesn't do any actual drilling
Problem is, a lot of the independent oil companies don't want to invest in exploration, they're using profits for stock buy backs and dividends instead.
The Government controlled producers are where the action is these days, but they are less efficient and more political.
That's the situation in a nutshell...the free market forces are being driven by geo-political influence.
Allowing free market producers access to ANWR or the Gulf of Mexico isn't going to change the equation of the Global Market, unless you want to Federalize the oil exploration.
-spence