I will follow up on this at a later date, but if you look at T153N-91W, sections 7 and 18, in the Sanish oil field you will see six Whiting wells, all running parallel, all long laterals, and all very interesting. Four of them are middle Bakken. One of them is a TFS well based on its designation (Marmon 12-18TFH, #18500) and one of them is an "X" well (Moore 14-7XH, #18853). X = TFS or middle Bakken? One would think TFS, but the X may signify another middle Bakken lateral lying between two other middle Bakken wells. If so, this appears to be a test to compare a TFS lateral between two middle Bakken wells, and an "X" (middle Bakken lateral) between two existing Bakken laterals.
The middle Bakken laterals are separated by about 1740 feet; the TFS lateral sits dead center, but, of course, vertically separated by 50 to 200 feet, I suppose.
For those interested in a discussion on "X" wells, click here and scroll to the top.
These are not yet on my "watch list," but maybe they should be.
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