We have large deposits of shale oil – in the Marcellus shale in Pennsylvania, and in the Bakken formation in North Dakota and Canada. Estimates vary. USGS, 2008 estimated 3.0 to 4.3 Billion Barrels of recoverable oil. Today, the North Dakota Geological Survey (PDF) estimates 18 Billions Barrels of recoverable oil. It also states
“the Bakken play on the North Dakota side of the basin is still early in the learning curve. Technology and the price of oil will dictate what is recoverable from this formation.”
Here in the US, according to the US Energy Information Agency, we consumed about 7.0 Billion barrels of refined petroleum products in 2010, slightly less, 6.7 Billion barrels, in 2011. This is roughly 22% of world demand. (here)
The Bakken formation holds Five Months to Two and One Half Years of US Oil needs.
















