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The U.S. government's press release did look impressive, mind you. The Bakken Formation, a 40,000 square kilometre territory reaching into Saskatchewan, Manitoba, Montana, and North Dakota, showed a "25-fold increase in the amount of oil that can be recovered," at least compared to 1995 estimates. A 25-fold increase? That's huge – or so it sounds.
But then you start comparing numbers. Assuming all 4.3 billion barrels could be retrieved, it would represent nine months of oil consumption in the United States. Canada's oil sands hold about 177 billion barrels, and Saudi Arabia has an estimated 250 billion barrels, if you can believe the numbers.
Now, let's consider the nature of the Bakken oil. It doesn't sit in big underground pools where you can just pop in a metal straw and suck it out. This oil is trapped in layers of shale – a sedimentary rock – up to 3,000 metres deep. Getting at it is expensive and difficult, and certainly damaging to the surrounding landscape and environment. You thought the oil sands were messy and energy-intensive? Bakken is tough oil. You have to drill down and then horizontally through rock, which has to be fractured to release the oil that is tucked away in small pores.
It will cost dearly to go after Bakken oil, just as Chevron will have to pay a bundle if it hopes to extract the 3 to 15 billion barrels it has discovered in the Gulf of Mexico, kilometres under the water at its "Jack" wells. The technology exists to get it – at least some of it. We can also have a manned mission to Mars if we truly wanted to pay for it.
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http://www.thestar.com/Business/article/414164