As I understand it, the Bakken is a different animal. Free thermally mature oil, still in the source formation [or at least the sandy dolomitic layer between the thicker shale layers. Add in [hopefully for those drilling the well] some natural fracturing, and a gigantic assist from massive lateral(s) and likewise massive slick water frac jobs and you end up with some potentially very significant fields.
Well, get ready, the Woodford shale is also an oil producer, and it is finally starting to be drilled for....I am about to drill my first horizontal Woodford oil well-but there have been already 7 commercial Woodford Oil wells. The significance is that the Woodford was deposited virtually all over Oklahoma. So, get ready.