The USA has five percent of the world population:
... and two percent of the global oil reserves.
On a per capita basis, the people of the USA use 66.3 barrels of oil each annually versus and average of about 10.6 for everyone else on the planet. In gallons, that's 2,784.6 gallons per person versus 445.2. (Based on 42 gallons per barrel.)
The question is, how long can this be sustained until it becomes a point of serious contention?
... and for those folks who imagine we can somehow "Drill, Baby, Drill" our way out of this ... perhaps you can show me how the numbers work in your plan.
(Statistics based on Wolfram database queries.)