The well was drilled about 7 kilometres southeast of the Oseberg C platform in the northern North Sea and 140 kilometres west of Bergen.

The objective of the well was to prove petroleum in Middle Jurassic reservoir rocks (Intra Heather Formation sandstones).

The well encountered poorly developed sandstones in the Intra Heather Formation with poor reservoir quality and no traces of petroleum. The well is classified as dry.

Data has been collected.

This is the 31st exploration well in production licence 053. The licence was awarded in the 4th licensing round in 1979.

Well 30/6-31 S was drilled to respective vertical and measured depths of 2830 metres and 2852 metres below sea level. The well was terminated in the Ness Formation in the Middle Jurassic.

Water depth at the site is 107 metres. The well has now been permanently plugged and abandoned.

Well 30/6-31 S was drilled by the West Hercules drilling facility, which will now drill wildcat well 35/10-5 in production licence 827 S in the northern North Sea, where Equinor Energy AS is the operator.