Hi Bucknor Yes they do The High Cliffhead sandstones were the reservoir in the recent discoveries in the adjoining permit Cliffhear 123 and 4 the sidetrack that flowed 3000 barrels of oil per day. As I see it if there is a seal between the 2 reservoirs The High Cliffhead could still have oil but knowing Oil Wells Not Bloo-dy Likely On to the next well Towie