[If the nation took an extremely vigorous stance on oil exploitation – and relaxed restrictions on the Gulf and drilled in the Arctic National Wildlife Refuge in Alaska and off the coast of California, where America’s most easily accessible offshore oil is located – it still would not have much of an impact.] 
With the exception of the deep Gulf, where there are restrictions, people are drilling as fast as they can […] You might, under really optimistic scenarios, over five or six years, add 2 million barrels a day of production. On a global scale, it’s significant. But we would still be big importers – we would still be dependent on foreign oil. [Oil is traded on a world market, and the United States does not have enough petroleum to increase the global supply, which would reduce demand – and thus the price – for fuel.]