The Bakken oil field

Tamsin Carlisle reports from the national:

It contains hundreds of billions of barrels of light crude oil and thousands of wells and should be scaring the pants off any oil exporter needing high crude prices to balance its budget.

It is the Bakken Shale oilfield, which sprawls across two Canadian prairie provinces and two western US states including North Dakota, under 500,000 square kilometres of land.

Its US portion is described as the country’s largest oil deposit outside Alaska. With its biggest and most accessible part in Canada, the Bakken could prove to be one of the largest oilfields in the world.
The American Association of Petroleum Geologists says it is the biggest continuous oil accumulation it has ever assessed.