Geologists say it could supply oil to the United States at a rate of 1 million barrels a day for 30 years. Environmentalists, however, say oil development in ANWR would upset the ecological balance of America’s last major wilderness.
We currently consume 20.7 million barrels per day and ANWR represents about 5 percent of current demand (though when it comes on line in 10 years that may only be 2-3 percent). And, it will only last for 30 years. A common thought is that ANWR will simply replace under performing US wells that are more expensive to operate leading to more profit margin but really not much more actual oil in the marketplace. Personally, preserving what wildlife we have left for a bit longer is more valuable than this limited non solution -- at lest for now. YMMV. You can always tap it if needed when there really is no cheap, easy oil left in the world.
The U.S. Geological Survey (USGS) agrees. Two years ago, after reviewing available data on the subterranean structures in the region, the agency estimated Cuba can lay claim to 4.6 billion barrels of oil and 9.8 trillion cubic feet of natural gas
These reserves are also of the same size as ANWR. Now add them up and you see 10 percent of total US demand (today). Not bad. But, again, that's not how the oil market works.
Oil is a global commodity. We will likely directly use this oil, but prices are set by the total amount of oil released in the market. If these fields were fully developed and fully paid out to top end expectations, it just adds 1-2 million bbls to a global oil demand of about 84 million bbls. Some impact... yes. Noticable impact in real life terms at the pump? Probably not much.
There are some deep water reserves in the Gulf that may be worthwhile, but that is more of a technological issue today than a political issue. Still, not enough to solve the problem that we consume about 20 percent of the worlds oil while only being able to meet less than half of our needs domestically. Oil Sands and CTL are far more interesting.
Charon.