I am totally puzzled about the general consenus that if we drill on US land/territory that we will be able to lower the price of oil and gas in the US because it's coming from "our" oil.
The oil companies are all part of the world oil market and while the price may fluctuate based on a variety of factors (economic, political, etc.) the only ones who benefit from low-priced oil in their country are those who's governments have nationalized the oil production.
I don't believe anyone is advocating that, though I may be wrong...