On 1 December 2019 Wintershall Dea spudded an exploration well, using the âScarabeo 8â S/S, in PL 894. 6604/6-1 investigated the Gullstjerne prospect which had an Upper Cretaceous Springar Formation sandstone target. The well is located 16 km east of Balderbra which made a new gas condensate discovery in 2018 (in the same licence) and which has similar Springar Formation reservoirs. TD for 6604/6-1 was reached at 3,640 m in the Springar Formation. Three separate sandstones, totalling 120 m, were encountered in the Springar Formation (185 m thick) but the reservoir quality was generally quite poor. There were some traces of gas but the well is a dry hole. It was abandoned on 11 January 2020.  Balderbra discovery well 6604/5-1 targeted a robust structural closure (Maastrichtian sand drape over older tilted fault blocks) with an amplitude anomaly between the Gullris (6604/2-1) and Gro (6603/12-1) wells. A gross gas column of 190 m across three separate sandstones totalling 90 m was encountered in the Springar Formation. The upper sandstone unit is thin with variable permeability, the middle sand is thicker (56 m gross) and laminated with 21% porosity, and the lower sand has a gross thickness of 129 m and 15% porosity. The three units are not in pressure communication and no GWC was encountered. Estimated recoverable reserves are between 247-671 Bcfg and 6-19 MMbc.   Interest in PL 894 is held by Wintershall Dea Norge AS (40% + operator), Equinor Energy AS (40%) and Petoro AS (20%).
6604/06-01 (Gullstjerne) nfw. (Wintershall Dea 40% op, Equinor 40%, Petoro 20%) in PL 894 block, E. of BalderbrÃ¥ disc, encountered about 185m of Springar Fm sst, with reservoir rocks in 3 zones totalling about 120m. However, while the sst. contained traces of gas, the reservoir were mainly of poor to moderate quality. P&A'ing dry. WD=1127m, TD=3606m.