Cottonwood Oil Field has always fascinated me. It was "discovered" by Fidelity (MDU) back in the 2008 time frame.
Fidelity never had any great wells in the Cottonwood and eventually sold their acreage in that field and others to Oasis. It appears that that deal was the beginning of Oasis as a major player in the Bakken.
I just updated the results of all the wells in the Cottonwood oil field.
Since the last update, there has been minimal activity. There are no rigs on site in the Cottonwood (according to the GIS map server) although one well is being completed.
The wells spudded/tested in 2008/2009 have been uniformly unremarkable, with one or two exceptions, but even the exceptions don't live up to Bakken expectations. Some wells are clearly stripper wells, and it appears some wells are kept going just to hold the lease.
The wells spudded/tested in 2010 are significantly better but still unremarkable. Rule of thumb for the Bakken is that the well is on its way to being paid for (at the well head) when it reaches 100,000 bbls of production. None of the wells in the Cottonwood have reached the 100,000-barrel threshhold. The best is about 70,000 bbls.
Overall, the Cottonwood does not yet impress me.