Montana’s Vast Untapped Oil Reserves

The U.S. Geological Survey called it the largest continuous oil accumulation it has ever assessed, while cautioning recently that little of the oil could be recovered. Still, as much as 500 billion barrels of oil may be sitting untapped beneath Montana, North Dakota, Saskatchewan, and Manitoba’s Bakken Formation, according to the USGS, a potential supply of oil four times as large as that held in Saudi Arabia’s massive Ghawar region.
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