If I understand this correctly, you are saying that by limiting US production of oil on the world market, we are not affectly the price of oil? And even though we have more oil then all of the Middle East, if our government allowed that oil to be drilled, that would not have an affect on the world price of oil?
Supply and demand means that you pay more when something that is wanted is in limited supply. Since there is no shortage of oil, and the world economy is down, then either the available supply is also down, or there is some fear of it's ability to be supplied.
There is no shortage, but there is a fear of supply due to conflict in the Middle East. (Iran)
By opening up the US to drilling, there will be more supply available. It doesn't have to actualy be there, but since the price of oil is bought on speculation, those who invest their money will not pay as much when they know that more oil is in the process of becoming available.
Supply and Demand
Eddie