http://www.energyandoil.com/the-us-oil-supply-a-look-at-our-future-oil-needs

The U.S. Oil Supply — A Look At Our Future Oil Needs

Oil Output and Supply…

Let’s discuss the U.S. oil supply going forward. The U.S. presently consumes about 21 million barrels of oil per day. This is a mix of domestic output (much coming in small quantities from several hundred thousand old stripper wells) and imports.

According to the most recent figures from the U.S. DOE, in January 2008, U.S. crude oil output was just over 5 million barrels per day, plus additional natural gas liquids. The balance of oil consumption comes from imports. (Also, the U.S. supply of transportation fuel is supplemented about 3-4% with ethanol that comes from distilling about half the U.S. corn crop. That is why your grocery bill is skyrocketing.)

But domestic volumes of oil output are depleting and declining inexorably. From the North Slope of Alaska to the deep water of the Gulf of Mexico, U.S. output is just plain falling. There is very little good news, and even the good news is oft-times not so good.

New discoveries and new wells just cannot keep up with depletion of older oil fields. By 2025, U.S. daily oil output will be a fraction of its current level (probably down to about 2-3 million barrels per day), even with an aggressive program of drilling offshore and in Alaska — which is not happening, in any case.

Also by 2025, U.S. imports will almost certainly decline. The oil will not be available to buy and import from world markets. Not everyone agrees with this. In one fanciful projection from 2005, the U.S. DOE forecast that “Total U.S. gross petroleum imports are projected to increase in the reference case from 12.3 million barrels per day in 2003 to 20.2 million in 2025.” Maybe in somebody’s dreams, but my view is that this is one projection that will never come true.

Really, by 2025, the rest of the oil-producing world will simply lack the product to export. This will be due to reasons of depletion on a global scale, and fast-growing internal demand in oil-producing nations. Gasoline consumption in places as diverse as Russia, Iran, Venezuela and Saudi Arabia is just soaring, so there is less net oil available for export.

And oil output everywhere is flat or declining. (Just last month, Russia announced a plateau in oil output.) And closer to home, Mexico’s Cantarell field is simply crashing at an annual depletion rate of 8% or more.

So what will happen in 2025? Will the U.S. pump its own oil? No, it’s not there. Will the U.S. continue to import large volumes? No, it won’t be available. The bottom line is that conventional oil sources for the U.S. — domestic output and imports — are simply drying up.