Offshore

Equinor Drills Dry Well in Norwegian Sea

Equinor and its partners have completed a dry wildcat well at the Heidrun Cellar SE prospect in the Norwegian Sea, with data collected before permanent plugging and abandonment.

Transocean Encourage (Photo source: Transocean)

17, June 2026
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Equinor and its partners have completed wildcat well 6507/8-D-4 CH in the Norwegian Sea, but the well did not prove petroleum.

The well was drilled in production license 124, about 240 km west of Sandnessjøen, at the Heidrun Cellar SE prospect beneath the Heidrun field.

The operation used Transocean’s semi-submersible drilling rig Transocean Encourage. It was the tenth wildcat well drilled in the license, which was awarded in 1986 under licensing round 10-B.

Equinor operates the license with ConocoPhillips, Petoro and Vår Energi as partners.

The well targeted deeper stratigraphic levels below the Heidrun field, with reservoir objectives in the Early Jurassic Åre Formation and Late Triassic Grey Beds.

Drilling found sandstone layers in the Åre Formation and Grey Beds with a combined thickness of about 161 m. Reservoir quality was described as good to very good.

No formation test was performed, but data were collected. The location has a water depth of 357 m, and the well has been permanently plugged and abandoned.

Tags: Equinor, Heidrun Cellar SE, Norwegian Sea, Transocean Encourage, Wildcat Well

Editorial Note:
This article was prepared with the assistance of AI tools to enhance clarity and efficiency.
All information has been reviewed and verified by the HMT News editor.

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