US oil and gas firm FX Energy has reported strong gas shows during the coring of the top level of Rotliegend sandstones in its Lisewo well in Poland.

The company said the gas shows were revealed on the mud-logging unit during coring of the interval from 3810m to 3846m.

The company further plans to drill the well to a total depth of 3945m and run electric logs to estimate reservoir properties and the gas water contact, which will be followed to be undertaken by the company.

Currenly, the Lisewo well has cored a total of 33m of porous Rotliegend sandstone that will be drilled to 3945m, with additional cores and logs to help determine the full extent of the pay zone and other reservoir parameters.

The nearest existing field is the Polish Oil and Gas Company’s (PGNiG) 390bcf Radlin field, about 12km west, according to the company.

FX Energy owns 49% of the working interest in the well while PGNiG is the operator of Lisewo with 51% interest.

The Lisewo well is being drilled on a 3D defined structural trap located in its ‘Fences’ concession in west central Poland.