Field · Barents Sea
Johan Castberg
Johan Castberg is an oil and gas field in the Barents Sea, discovered in 2011. Status: producing. Operator: Equinor Energy AS.
ProducingOil and gas
- Status
- Producing
- Contains
- Oil and gas
- Sea area
- Barents Sea
- Operator
- Equinor Energy AS
- Discovered
- 2011
- Approved for production
- 11 Jun 2018
- Production start
- 31 Mar 2025
- Supply base
- Hammerfest
- Sodir ID
- 32017325
Show on the globeFact page at the Norwegian Offshore Directorate
Production
- Last 12 months
- 10.4 million Sm³ o.e. · Aug 2025–Jul 2026
- Share of Norwegian production
- 4.23 %no. 3 of 95 fields with production in the last 12 months
- Per day
- 179,000barrels o.e. per day, converted
- Peak year
- 2025 6.31 million Sm³ o.e.
Oil2026 covers January–July (lighter bar).
Show the figures as a table
| Year | Oil | Gas | NGL | Condensate | Total |
|---|---|---|---|---|---|
| 2026 (Jan–Jul) | 6.08 | 0.00 | 0.00 | 0.00 | 6.08 |
| 2025 | 6.31 | 0.00 | 0.00 | 0.00 | 6.31 |
Marketable production in million standard cubic metres of oil equivalent (Sm³ o.e.), per month from the Norwegian Offshore Directorate, summed per year. Gas in billion Sm³ equals million Sm³ o.e. Figures up to and including July 2026. The conversion to barrels per day uses 1 Sm³ ≈ 6.29 barrels.
Reserves
The Norwegian Offshore Directorate's estimate as of 31 Dec 2025. Originally recoverable is everything the field is expected to produce; remaining is what is left.
| Product | Originally recoverable | Remaining | Unit |
|---|---|---|---|
| Oil | 95.42 | 88.84 | million Sm³ |
| Total o.e. | 95.42 | 88.84 | million Sm³ o.e. |
According to the estimate, 7 % of the recoverable reserves have been produced.
Licensees
| Company | Share | Valid from |
|---|---|---|
| Equinor Energy ASEQNROperator | 46.30 % | 1 Jan 2025 |
| Vår Energi ASAVAR | 30.00 % | 1 Jan 2025 |
| Petoro AS | 23.70 % | 1 Jan 2025 |
Companies on the analysis page link to their own page.
Facilities
| Name | Type | Status | In service since |
|---|---|---|---|
| Johan Castberg Ca | Multi-well template | In service | 2025 |
| Johan Castberg Cb | Multi-well template | In service | 2025 |
| Johan Castberg Cc | Multi-well template | In service | 2025 |
| Johan Castberg Cd | Single-well template | In service | 2025 |
| Johan Castberg Da | Multi-well template | In service | 2025 |
| Johan Castberg Ea | Multi-well template | In service | 2025 |
| Johan Castberg Eb | Multi-well template | In service | 2025 |
| Johan Castberg Ec | Multi-well template | In service | 2025 |
| Johan Castberg FPSO | Production ship (FPSO) | In service | 2025 |
| Johan Castberg Umbilical Base | Subsea structure | In service | 2025 |
| Johan Castberg Ya | Multi-well template | In service | 2025 |
| Johan Castberg Yb | Multi-well template | In service | 2025 |
| Johan Castberg Za | Multi-well template | In service | 2025 |
| Johan Castberg Zb | Single-well template | In service | 2025 |
Sources
Sokkeldirektoratet, the Norwegian Offshore Directorate (FactMaps and FactPages), Norwegian Licence for Open Government Data (NLOD). Field data retrieved 28 Sep 2026, production 27 Sep 2026, licensees and reserves 28 Sep 2026. factpages.sodir.no · NLOD