Deltic Energy Plc announced that Shell, the Operator of exploration well 41/05a-2 on Licence P2252 (Shell 65%, Deltic 30%, ONE-Dyas 5% Working Interests), in the Southern North Sea has reported that gas has been encountered in the reservoir and has recommended to the Joint Venture ('JV') that a full well testing programme be undertaken. The JV has endorsed the Operator's recommendation to undertake a full well test to evaluate the commerciality of the Pensacola prospect and update the geological model. Deltic will provide a drilling update announcement in respect of Pensacola on completion of well testing which is expected to take approximately 30 days.