There is enough oil out there for world demand. It is true that a lot of what's driving oil prices up right now is not the lack of supply. There's enough supply.
America is addicted to oil and increasing amounts of this oil comes from abroad. Some of the nations we depend on for oil have unstable governments or are hostile towards the United States.
We used to be a source of fuel; we are increasingly becoming a sink. These supplies of foreign liquid fuel are no doubt vital to our industry, but our ever-increasing dependence upon them ought to arouse serious and timely reflection. The scientific utilisation, by liquefaction, pulverisation and other processes, or our vast and magnificent deposits of coal, constitutes a national object of prime importance.
In sectors like energy, I haven't been arguing for more spending per se; I've been arguing that it doesn't make sense for us to spend $4 billion subsidizing an oil industry that's mature and very profitable. We should be using that money to finance clean energy of the future.
The petroDollar system breaking down, where oil is no longer paid for in Dollars internationally, essentially would be the death knell to the US Dollar as the reserve currency. It means the US can't borrow with 'exorbitant privilege' anymore, and it means the US Treasury market is set for an out-of-control interest rate spiral.