Deviated appraisal on SE York; NW-SE trending anticline with Leman at 9,761–9,950 ft. Drilled as pilot to planned crestal development well. Main hole took losses in Triton Anhydrite and was junked and sidetracked. Well 47/3a-Y2Z drilled 149 ft TVT gross Leman at inclination of 36–37° from 10,077 ft (9,897 ft TVDSS) with gas to FWL at 10,830 ft (9,950 ft TVDSS). Gas column net/gross 0.847, average porosity 10.1%. Gas and water samples recovered. Well plugged back to drill 47/3a-Y2Y (SE-1) development well.