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Not true about the 85% of wells that could be fracked have been fracked. Maybe of the wells that have currently been drilled but there are many, many more wells that can be drilled and then fracked. They are only working one part of the Bakken, mostly North Dakota. There is just as big an area if not bigger under Montana that has hardly been touched. There are a limited number of drill and frack rigs available. There are between 40,000 and 100,000 more wells that may be drilled still and each well will produce oil for 40 years or more. At the end of that 40 years 85% of the oil will still be left in the well, if technology improves (which is a safe bet on history) in that 40 years there could be 100 or more years available in each well. We could be talking about a total of 643 billion barrels of oil there. It won't be the last place we discover new oil either.
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