from the USGS...
http://www.usgs.gov/newsroom/article.asp?ID=1911 North Dakota and Montana have an estimated 3.0 to 4.3 billion barrels of undiscovered, technically recoverable oil in an area known as the Bakken Formation.
A U.S. Geological Survey assessment, released April 10, shows a 25-fold increase in the amount of oil that can be recovered compared to the agency's 1995 estimate of 151 million barrels of oil.
The Bake is the largest domestic oil discovery since Alaska 's Purdah Bay, and has the potential to eliminate all American dependence on foreign oil. The Energy Information Administration (EIA) estimates it at 503 billion barrels.. Even if just 10% of the oil is recoverable... at $107 a barrel, we're looking at a resource base worth more than $5.3 trillion.
'This sizable find is now the highest-producing onshore oil field found in the past 56 years.' reports, The Pittsburgh Post Gazette. It's a formation known as the Williston Basin, but is more commonly referred to as the 'Bake.' And it stretches from Northern Montana, through North Dakota and into Canada . For years, U.S. oil exploration has been considered a dead end. Even the 'Big Oil' companies gave up searching for major oil wells decades ago. However, a recent technological breakthrough has opened up the Bakken's massive reserves.... and we now have access of up to 500 billion barrels. And because this is light, sweet oil, those billions of barrels will cost Americans just $16 PER BARREL!
1. That's enough crude to fully fuel the American economy for 2041 years straight.