Doesn't matter how it is extracted and as long as drillers can make a profit it doesn't matter how much it costs to extract, all that matters is how much there is, and how much buyers want and can pay.
Supply of course depends on whether the refiners are set up for whatever type of oil is being extracted. How far it is shipped and of course how much tax you pay locally (ND has low tax) is a fixed amount but mostly it is a matter of supply and demand.
If there is an increase in production to say 100Mb/d of oil and oilish stuff on the market in 2020 the price will probably be somewhere around where it is today - if the customers can pay that much. How much the customer can and is willing to pay of course is most important.
If the economy goes into overdrive and oil supply doesn't, the price will rise.
If on the other hand, the economy goes in the toilet and the production plateau continues, the price will likely fall.
Or maybe we all decide to carpool and ride bikes - the price falls
KSA & RU melt down the price spikes.
tight shale oil is found to be a ponzi - well ...
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But having said all that, the "problem" with LTO as I see it, is that it contains a greater percentage of the lighter oil fractions: ethane to butane, and not so much of the heavier pentane+ fractions than refiners are used to processing into petrol and diesel and kero, at least here in the US. I posted elsewhere the makeup of the increase in US "oil" and a good percentage is those light factions. That pretty well argues that the volume of LTO extracted would need to increase dramatically in order to replace conventional crude.

Additionally the energy content is less in those light factions so there is simply less bang for the barrel. I'm no chemist but that is my take on the situation and why even with a great deal more LTO extraction the price of "oil" hasn't fallen much. In fact lots of LTO is being sent north to dilute tar so that the tar can be shipped and processed rather than the LTO being processed by itself, in that regard it is more a carrier of energy than a source - more like paint thinner than paint.
In the same vein, we all heard that the first shipment of "condensate" (read "frac oil") left port last week - I don't know for sure what the eventual destination is but the buyer owns a polypropylene plant and it makes sense to me that they will be making plastic rather than diesel with that shipment.
Or, to answer the question another way:
it depends
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The legitimate object of government, is to do for a community of people, whatever they need to have done, but can not do, at all, or can not, so well do, for themselves -- in their separate, and individual capacities.
-- Abraham Lincoln, Fragment on Government (July 1, 1854)