The Palaeocene reservoir interval was found to be eroded at the drilled location and the company will plug and abandon this well which is located in the western Black Sea.
The company said it now plans to shoot 500 sq km of 3D seismic over the central area of the Galata Block to the north of the Galata to Kaliakra field trend.
Melrose has identified three further exploration leads in this area on regional 2D seismic data.
Melrose chief executive David Thomas said the combination of low development costs, strong regional gas prices and competitive terms make the Galata Block one of the very attractive exploration environments for the company.