NORWAY · FIELDS · NPDID 40867462
Tommeliten A
North Sea · Gas/condensate · Producing · Operator ConocoPhillips Skandinavia AS
Tommeliten A is a gas and condensate field in the North Sea operated by ConocoPhillips Skandinavia AS, discovered in 1977 by wellbore 1/9-1. The Norwegian Offshore Directorate lists it as producing.
In the 12 months reported through August 2026 it sold 2.92 million Sm³ of oil equivalents (0.99 million Sm³ of oil, 1.8 billion Sm³ of gas), down 1% on the 12 months before.
Since October 2023 it has reported 7.4 million Sm³ of oil equivalents: 2.8 million Sm³ of oil and 4.2 billion Sm³ of gas.
7 companies hold it; the largest share is ORLEN Upstream Norway AS with 42.2%.
20 wellbores are on file for the field.
- 2.92
- mill Sm³ o.e., last 12 reported -1%
- 0.99
- mill Sm³ oil, last 12
- 1.8
- bill Sm³ gas, last 12
- 7.44
- mill Sm³ o.e. since Oct 2023
- 20
- wellbores on file
- 7
- licensees today
SODIR PRODUCTION PROFILES · SALEABLE VOLUMES · REPORTED THROUGH AUG 2026
Oil by month
TEN YEARS · SM³ SOLD
Last 12 months 987,787 · prior 12 1,166,444(-15%)
Gas by month
TEN YEARS · SM³ SOLD
Last 12 months 1,799,183,000 · prior 12 1,636,003,000(+10%)
Produced water by month
TEN YEARS · SM³ IN THE FIELD
Last 12 months 48,880 · prior 12 28,134(+74%)
Licensees
SHARES TODAY · UNIT TOMMELITEN A UNIT
| Company | Share | Since |
|---|---|---|
| ORLEN Upstream Norway AS | 42.1978% | Dec 19, 2024 |
| ConocoPhillips Skandinavia ASOPERATOR | 28.1385% | Dec 19, 2024 |
| TotalEnergies EP Norge AS | 20.143% | Dec 19, 2024 |
| Vår Energi ASA | 9.0907% | Dec 19, 2024 |
| ConocoPhillips (U.K) Holdings Limited | 0.2109% | Dec 19, 2024 |
| TotalEnergies E&P UK Limited | 0.151% | Dec 19, 2024 |
| Ithaca EF Limited | 0.0681% | Dec 19, 2024 |
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 | 5.42 | 18.6 | 0.54 | 0 | 25 |
| Remaining | 3.35 | 15.3 | 0.41 | 0 | 19.4 |
About the field
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
- Development
- Tommeliten A is a field in the southern part of the Norwegian sector in the North Sea, 25 kilometres southwest of the Ekofisk field. The field is located on the border to the UK sector and the Norwegian share of the field is 99.57 per cent. The water depth is 75 metres. Tommeliten A was proven in 1977 and the plan for development and operation (PDO) was approved in 2022. The field is developed with two subsea templates tied-back to the Ekofisk Complex. The production started in 2023.
- Reservoir
- The reservoir contains gas condensate and volatile oil in chalk in the Paleocene Ekofisk Formation and the Upper Cretaceous Tor Formation at a depth of about 3000 metres. The reservoir quality varies across both formations and is affected by faults and fractures.
- Recovery strategy
- The field is being produced by pressure depletion.
- Transport
- The well stream is transported to Ekofisk Centre by pipelines. Oil and gas are routed to export pipelines via the processing facility at Ekofisk to Teesside in the UK and to Emden in Germany.
- Status
- Tommeliten A has maintained stable production since start-up. All planned wells have been drilled, with seven currently producing and four awaiting final work before start-up. Production in 2025 has exceeded previous estimates, even though not all wells are in operation.
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 | 0.62 | 1.18 | 0.08 | 0 | 1.88 | 0.03 |
| 2025 | 1.1 | 1.69 | 0.13 | 0 | 2.91 | 0.04 |
| 2024 | 1.04 | 1.28 | 0.12 | 0 | 2.45 | 0.01 |
| 20233 MONTHS | 0.09 | 0.1 | 0.01 | 0 | 0.2 | 0 |
Wellbores
Production 12 · Appraisal 3 · Wildcat 3 · Observation 2
All 20 wellbores in Tommeliten A, searchable → · Discovery wellbore 1/9-1 →
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/40867462, documented in the API reference.