NORWAY · FIELDS · NPDID 32017325
Johan Castberg
Barents Sea · Oil/gas · Producing · Operator Equinor Energy AS
Johan Castberg is an oil and gas field in the Barents Sea operated by Equinor Energy AS, discovered in 2011 by wellbore 7220/8-1. The Norwegian Offshore Directorate lists it as producing.
In the 12 months reported through August 2026 it sold 10.46 million Sm³ of oil equivalents (10.46 million Sm³ of oil, 0 billion Sm³ of gas), up 250% on the 12 months before.
Since March 2025 it has reported 13.4 million Sm³ of oil equivalents: 13.4 million Sm³ of oil and 0 billion Sm³ of gas.
3 companies hold it; the largest share is Equinor Energy AS with 46.3%.
51 wellbores are on file for the field.
- 10.5
- mill Sm³ o.e., last 12 reported +250%
- 10.5
- mill Sm³ oil, last 12
- 0
- bill Sm³ gas, last 12
- 13.4
- mill Sm³ o.e. since Mar 2025
- 51
- wellbores on file
- 3
- licensees today
SODIR PRODUCTION PROFILES · SALEABLE VOLUMES · REPORTED THROUGH AUG 2026
Oil by month
TEN YEARS · SM³ SOLD
Last 12 months 10,461,135
Produced water by month
TEN YEARS · SM³ IN THE FIELD
Last 12 months 592,861
Licensees
SHARES TODAY · LICENCE 532
| Company | Share | Since |
|---|---|---|
| Equinor Energy ASOPERATOR | 46.3% | Jan 1, 2025 |
| Vår Energi ASA | 30% | Jan 1, 2025 |
| Petoro AS | 23.7% | Jan 1, 2025 |
Production licence 532: ownership history and register messages →
Reserves
THE DIRECTORATE'S ESTIMATE · AS OF DEC 31, 2025
These are the Norwegian Offshore Directorate's own year-end estimates, shown as it publishes them. Petrora does not estimate reserves.
| Oil, mill Sm³ | Gas, bill Sm³ | NGL, mill tonnes | Condensate, mill Sm³ | O.e., mill Sm³ | |
|---|---|---|---|---|---|
| Originally recoverable | 95.4 | 0 | 0 | 0 | 95.4 |
| Remaining | 88.8 | 0 | 0 | 0 | 88.8 |
About the field
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
- Development
- Johan Castberg is a field in the Barents Sea, 100 kilometres northwest of the Snøhvit field. The water depth is 370 metres. Johan Castberg consists of the three discoveries Skrugard, Havis and Drivis, proven between 2011 and 2013. The plan for development and operation (PDO) was approved in 2018. The discoveries were developed together, and the development concept is a production, storage and offloading vessel (FPSO) with additional subsea templates including 18 horizontal production wells and 12 injection wells.
- Reservoir
- The reservoirs contain oil with gas caps in three separate sandstone deposits of Late Triassic to Middle Jurassic age in the Tubåen, Nordmela and Stø Formations. They are at depths of 1250-1900 metres. Reservoir properties in the Tubåen and Stø Formations are generally good; the Nordmela Formation is more heterogeneous with several lateral barriers.
- Recovery strategy
- The field is produced by pressure support from gas and water injection.
- Transport
- The oil is offloaded to shuttle tankers and transported to the market.
- Status
- The production started in March 2025.
Production by year
MONTHLY ROWS ADDED UP · NEWEST FIRST
| Year | Oil, mill Sm³ | Gas, bill Sm³ | NGL, mill Sm³ | Condensate, mill Sm³ | O.e., mill Sm³ | Water, mill Sm³ |
|---|---|---|---|---|---|---|
| 20268 MONTHS | 7.13 | 0 | 0 | 0 | 7.13 | 0.46 |
| 202510 MONTHS | 6.31 | 0 | 0 | 0 | 6.31 | 0.14 |
Wellbores
Production 29 · Injection 12 · Wildcat 8 · Appraisal 1 · Soil drilling 1
All 51 wellbores in Johan Castberg, searchable → · Discovery wellbore 7220/8-1 →
This field on Sodir FactPages →
About this data
Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Production is saleable volume by month from the Directorate's profiles, cut at the latest month any field has reported; yearly and cumulative figures are those months added up. Shares are the current rows of the field's licensee history. Reserves are the Directorate's estimate.
Developers: this page as JSON is GET /v1/data/norway/fields/32017325, documented in the API reference.