The oil wells in SW ND and NW SD are laying on/near the Cedar Creek Anticline. This Anticline runs from South of Glendive MT to Buffalo , SD. The natural Uplift of this feature has naturally fractured the strata, so I have never heard of any further fraccing being done.A good description of the various Red River formations (A, B, C, and D) can be found at the geologist's report for #11409.
Red River exploration in Harding County, South Dakota, by VAALCO, December 30, 2012.
Random update of Red River wells, December 5, 2012.
Three formations folks may not know about, including the Red River, December 5, 2012.
Review of high production Red River wells drilled in 2006. See comments: a reader suggests that Red River C and D formations are the source rock for Red River A and B.
See Cedar Hills oil field.
Update of Red River wells in Cedar Hills, compiled May, 2012.
See CLR's presentation regarding its Red River units.
Horizontal drilling brings new life to an "old" formation. Click here and scroll down to first long comment by Degas. February 21, 2010.
February 15, 2017: on the March, 2017 NDIC dockets -- request to unitize two Red River units in far southwest North Dakota.
December 23, 2011: Whiting requesting a horizontal targeting the Red River formation; update regarding activity in that area (pretty void of activity).
August 9, 2011: Bakken shale not the only game in town -- Investopedia. CLR investing $65 million in the Red River formation (discovered in 1967); RR still accounts for about 10% of North Dakota production.
November 8, 2010: Permit # 16064, 72, CLR, MPHU 44-9, Medicine Pole Hills, 9-130-104