NORWAY · DISCOVERIES · NPDID 5818175
35/12-2 (Grosbeak)
North Sea · Oil/gas · Production in clarification phase
An oil and gas discovery in the North Sea, made in 2009 by wellbore 35/12-2, operated by Equinor Energy AS. The Norwegian Offshore Directorate's status for it: production in clarification phase.
Operator Equinor Energy AS · Discovery wellbore 35/12-2 · Licence 925
Recoverable resources
THE DIRECTORATE'S ESTIMATE · AS OF DEC 31, 2025 · RESOURCE CLASS 4F
The Norwegian Offshore Directorate's own estimate, shown as it publishes it. Petrora does not estimate resources.
- 16.8
- mill Sm³ o.e.
- 8.89
- mill Sm³ oil
- 7.95
- bill Sm³ gas
- 0
- mill tonnes NGL
- 0
- mill Sm³ condensate
About the discovery
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
35/12-2 S (Grosbeak) is a discovery in the northern North Sea, 23 kilometres south of the Gjøa field. The water depth is 360 metres. Grosbeak was proven in 2009 and delineated by appraisal wells 35/11-21 A and 35/11-21 S in 2018. The reservoirs contain gas and condensate in sandstone of Late Jurassic age in the Sognefjord Formation, and oil in sandstone of Late and Middle Jurassic age in the Fensfjord Formation and Brent Group. Various development solutions have been evaluated, and the likely solution is a tie-back to the Gjøa field. A plan for development and operation (PDO) is expected to be submitted in 2025.
Wellbores on the discovery
5 ON FILE · OLDEST FIRST
| Wellbore | Purpose | Operator | Entered | TD, m | Content | On file |
|---|---|---|---|---|---|---|
| 35/12-2 | Wildcat | Wintershall Norge ASA | May 30, 2009 | 2,541 | Oil/gas | |
| 35/12-4 S | Appraisal | Wintershall Norge ASA | Apr 23, 2011 | 3,585 | Oil/gas | |
| 35/12-4 A | Appraisal | Wintershall Norge ASA | Jun 26, 2011 | 3,413 | Dry | |
| 35/11-21 S | Appraisal | Wellesley Petroleum AS | Jul 26, 2018 | 2,800 | Oil | |
| 35/11-21 A | Appraisal | Wellesley Petroleum AS | Sep 6, 2018 | 2,931 | Oil/gas |
This discovery on Sodir FactPages →
About this data
Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Status, type, and the resource estimate are the Directorate's. Wellbores are those it files against the discovery.
Developers: this page as JSON is GET /v1/data/norway/discoveries/5818175, documented in the API reference.