Sokkeldirektoratet

Gas discovery south of the Marulk field in the Norwegian Sea – 6507/2-5 S

9/17/2019 Equinor Energy AS, operator of production licence 942, has completed the drilling of wildcat well 6507/2-5 S.

The well was drilled about 12 kilometres southwest of the Marulk field, 38 kilometres southwest of the Norne installation, 20 kilometres northwest of the Skarv installation and about 140 kilometres west of Brønnøysund.

The objective of the well was to prove petroleum in Middle Jurassic reservoir rocks (the Garn and Ile formations). In addition, reservoir and fluid data were to be collected from the Lysing formation in the Upper Cretaceous.

Well 6507/2-5 S encountered a total gas column of 40 metres in the Garn and Not formations, of which 30 metres of sandstones mainly of moderate reservoir quality in the Garn formation and tight sandstones in the Not formation.

The Ile formation is tight and aquiferous. The gas/water contact was not encountered. As expected, the Lysing formation is aquiferous, and data was collected as planned.

Preliminary estimates place the size of the discovery between 8 and 14 million standard cubic metres (Sm3) of recoverable oil equivalents.

The licensees in production licence 942 will consider follow-up of the discovery, and will determine whether further appraisal is needed.

The well was not formation-tested, but extensive volumes of data have been acquired and samples have been taken.

Well 6507/2-5 S is the first exploration well in production licence 942, which was awarded in APA 2017.

The well was drilled to vertical and measured depths of 4147 and 4191 metres below the sea surface, and it was terminated in the Tilje formation in the Lower Jurassic.

Water depth at the site is 332 metres. The well has been permanently plugged and abandoned.

Well 6507/2-5 S was drilled by the West Phoenix drilling facility, which will now move on to drilling assignments in the UK sector.

Map of well 6507-2-5-S

Contact
postboks@sodir.no

Tel: +47 51 87 60 00

Updated: 2/10/2025

Latest news

Public consultation – proposed changes to two regulations
10/2/2025 The Norwegian Offshore Directorate is submitting proposed changes to the Resource Management Regulations and the Regulations relating to documentation in connection with storage of CO2 on the shelf for public consultation.
Drilling permit for wellbore 35/8-8 S
10/2/2025 The Norwegian Offshore Directorate has granted Harbour Energy Norge AS drilling permit for wellbore 35/8-8 S in production licence 248 LS og 248 B.
Popular tours of the Geobank during the Ulltra festival – celebrating the future
9/26/2025 At the end of September, the Norwegian Offshore Directorate participated in a brand-new festival at Ullandhaug - Ulltra 2025. Registered visitors had the opportunity to take part in a guided tour of the Geobank in our offices. 
Seabed data from this summer’s cruise now available for order
9/26/2025 Orders can now be placed for data from this summer’s cruise in the Lofoten Basin (east of the Mohns Ridge) in the Norwegian Sea and the southwestern part of the Knipovich Ridge in the Greenland Sea.
Green light for export via gas pipeline from Troll B
9/25/2025 The Norwegian Offshore Directorate has granted consent for start-up of a tie-in from the Troll B platform to the Kvitebjørn gas export line.
Production figures August 2025
9/23/2025 Preliminary production figures for August 2025 show an average daily production of 2 124 000 barrels of oil, NGL and condensate.
Dry well in the North Sea (34/8-20 S)
9/19/2025 Equinor and its partners Vår Energi and Aker BP have drilled a dry well about 130 kilometres west of Florø.
Drilling permit for wellbore 34/4-19 S
9/15/2025 The Norwegian Offshore Directorate has granted Equinor Energy AS drilling permit for wellbore 34/4-19 S in production licence 057.
Drilling permit for wellbore 34/6-9 S
9/15/2025 The Norwegian Offshore Directorate has granted Equinor Energy AS drilling permit for wellbore 34/6-9 S in production licence 554.
Oil discovery in the North Sea (31/4-A-15 B)
9/11/2025 OKEA and its partners have made an oil discovery near the Brage field.