@Kevin Patrick Crowley
'Check out the Bakken Oil Reserves'
Yup lots of oil in the Bakken formation, it's already producing oil in South Saskachewan. Sadly the porosity of the Bakken rock is generally very low - good oil fields have very high porosities which allow oil to accumulate between rock grains and move through the rock. The lower the porosity, the lower the amount of recoverable oil. Highly productive fields generally have porosities in the 20 - 25%. The exceptional Ghawar field in Saudi Arabia has 35% porosity; by contrast Bakken in down around 3 - 4%.
The numbers about Bakken are derived from mathematical models with only isolated drill logs and production figures. It's hard to say how much of the oil that could have been formed in Bakken has migrated into traps where it can be exploited; how much remains locked up in useless non-interconnected pores and how much has been lost through faulting or pyrolisis. Oil geologists are very wary about citing figures like these because there is a long and fabulous history of new elephant fields proving to be entirely dry.
The conservative industry figures for recoverable oil in Bakken, add about 10% to the known US reserves. These figures might be improved with horizontal drilling and hydrofracturing, but they would not come anywhere near the headline figure of 413 billion barrels.
There's far more recoverable energy in Montana's enormous coal fields, though exploiting them would be an ecological catastrophe for the American west and the rest of the World.
Mine's the one with the Silva compass and the geological hammer in the pocket.