Oil or gas well record in the Kentucky Geological Survey data repository.Well Number: 91-R Original Operator: ASHLAND EXPLORATION, INC Farm Name: TIERNEY LAND COMPANY Permit Date: 11/4/1996 Completion Date: 2/10/1997 Well Elevation (ft): 981 Total Depth Formation: Devonian-Olentangy Mbr, Ohio Sh Deepest Pay Formation: Devonian-Berea/Black Shale Interval Combined Deviated or Vertical: vertical