Due to the heterogenic porosity development within the Mississippian formations it is advantageous to drill horizontal wells to interconnect a larger percentage of porosity with one well bore. Fracture treatment of the formation during completion in addition to the horizontal placement of the well bore will add significant conduits for production of hydrocarbons adding significant recoverable reserves. These reserves would not be recovered with a conventional vertical well.
A concentration of Middle Pennsylvanian oil production from the Cherokee and Marmaton Groups produce on and immediately west of the Central Kansas Uplift. In western Kansas the Cherokee Group was deposited on an extensive pre-Pennsylvanian erosion surface on the flanks and over the crests of the Uplift where it locally pinches out. KABX