Keep in mind that while the Bakken Shales are the source rock, the tight dolomite, sand, limestone, and siltstone of the Middle Bakken and the upper Three Forks are the reservoirs being produced.
Calling the Bakken and Three Forks shale plays in not completely accurate. The formations are better described as unconventional reservoirs which have hydrocarbon saturation over very large areas.
2 posted on 02/15/2014 7:07:24 PM PST by Smokin' Joe
(How often God must weep at humans' folly. Stand fast. God knows what He is doing.)