The Kansas Class 2 project was a demonstration project in an Osagian and Meramecian (Mississippian) shallow shelf carbonate reservoir in west central Kansas. Cumulative production from Mississippian carbonate reservoirs located beneath a regional sub-Pennsylvanian unconformity is over 1 billion barrels distributed over a large number of small to medium size reservoirs. Small independent producers operate many of these reservoirs. Extremely high water cuts and low recovery factors place continued operations at or near their economic limits.