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Norstra Energy
In the past 5 years the Bakken Shale has already doubled the proven oil reserves of the USA, with growing estimates of over 40 billion barrels of oil, compared to 21 billion for the rest of the country. On November 3rd, 2011, a new production record was set for a Bakken well when the Whiting Petroleum Tarpon Federal # 21-4H posted an IP of 7,009 BO in a 24 hour period. Wells with IP’s over 5,000 BOPD in the Williston Basin are no longer unusual. Currently, North Dakota has over 450,000 BO monthly production and is expected to top 1,000,000 BO by 2015. Industry experts predict that drilling will not slow until 2030, and that Bakken production will continue until 2100.
The South Sun River Bakken Prospect is an over-pressured Bakken shale resource play in Lewis & Clark County, Montana, in the developed Bakken Fairway that extends southwards from Alberta, Canada into northwest Montana. Potential oil production is estimated throughout the literature and publications at 10-15 MMBO per square mile in areas where the Bakken is thermally mature and where the critical middle Sappington Member is between 20’-30’ thick. It encompasses a superb land package of 10,097.99 mineral acres. It is where the western edge of the Bakken Fairway plunges into contact with the tectonically heated Thrust Zone and where we believe the resulting thermal maturity of the Bakken offers the highest potential for oil production.  Oil generation from organically rich shale units is considered to commence at Ro=0.65%, with peak oil generation occurring at Ro=1.00% and the end of oil generation occurring when Ro >1.3%. Ro values associated with the Bakken range from 0.6% in the east to >1.00% toward the west and south.
Reservoir quality in the middle member of the Bakken, known as the Sappington, is generally poor to fair, and is a calcite cemented siltstone. The porosity of the Sappington typically falls within the 3-10% range, but can reach as high as 15%. Permeability is also typically low in the 1-20 md range. However, resistivity readings in the Bakken have been recorded as high as 25,000 ohms. While oil generation has been recorded with resistivity as low as 35 ohms, this makes the Bakken formation an excellent candidate for horizontal completion techniques.
Specifically, the prospect lies within the key oil producing zone where thermal maturity (Ro) is between 0.7% and 1.5%. Oil production begins when Ro is above 0.65% and slows when Ro is over 1.3%.
 The Total Oil Content (T.O.C.) readings in the prospect area are high as well, reading between 7% and 14%, and water content of the Bakken in the area is low.
There are excellent resistivity readings in the Upper and Lower Bakken members in key wells in the prospect area. The wells show excellent sections of the Bakken with resistivity readings over 400 ohms, well in excess of the minimum 35 ohms needed for possible oil production. The Middle Member of the Bakken, known as the Sappington Silt, is also well developed, with adequate porosity (3-15%) and permeability (1-20 md) for oil production.
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Oil generation from organically rich shale units is considered to commence at Ro=0.65%, with peak oil generation occurring at Ro=1.00% and the end of oil generation occurring when Ro >1.3%. Ro values associated with the Bakken range from 0.6% in the east to >1.00% toward the west and south.
The Total Oil Content (T.O.C.) readings in the prospect area are high as well, reading between 7% and 14%, and water content of the Bakken in the area is low. 