The Eocene Frigg Formation was the target of exploration well 25/1-13 in PL 871. The well encountered a 50m thick Frigg Formation of which 10m sandstones of good reservoir quality. The underlying upper part of the Balder Formation was 40m thick with 20m sandstones with good to very good reservoir properties. Both sandstone intervals are water-wet with only traces of gas in the Frigg Formation.
The partnership in PL 871 consists of operator Wellesley Petroleum (60%), Lotos (20%) and Equinor (20%).
Read the NPD drilling result here.