Oil giant Tullow has revealed disappointing results from the Teak-4A appraisal well in the West Cape Three Points Block, offshore Ghana.In a short statement, the group said that Teak-4A, in which it is a 26.396% parter, was drilled by operator Kosmos Energy and was drilled to a total depth of 2,850m to target the stratigraphic extension of the Teak discovery area.The well was said to have encountered "thin, non-commercial reservoirs" and is, in turn, being plugged and abandoned."Kosmos and partners have begun integrating well results into the Teak field model to determine forward appraisal and development plans."Kosmos and Anadarko Petroleum Corp both own a 30.875% interest each in the West Cape Three Points Block, while Tullow, Sabre Oil & Gas and Ghana National Petroleum Corp own the rest.BC