Reports on ‘Bakken Oil’ discovery in North Dakota, USA
151 million barrels — United States Geological Survey (USGS) assessment 1995
2 Trillion barrels — Stansberry Report Online – 4/20/2006
3.65 billion barrels — United States Geological Survey (USGS) April 10, 2008
271 to 503 billion barrels — Leigh Price, Energy Information Administration (EIA) August 2000.… Go to Article

