NORWAY · FIELDS · NPDID 43576

Øst Frigg

North Sea · Gas · Shut down · Operator Aker BP ASA

Øst Frigg is a gas field in the North Sea operated by Aker BP ASA, discovered in 1973 by wellbore 25/2-1. The Norwegian Offshore Directorate lists it as shut down.

No production has been reported since January 1998.

Since August 1988 it has reported 9.3 million Sm³ of oil equivalents: 0 million Sm³ of oil and 9.2 billion Sm³ of gas.

3 companies hold it; the largest share is Aker BP ASA with 47.7%.

17 wellbores are on file for the field.

0
mill Sm³ o.e., last 12 reported
0
mill Sm³ oil, last 12
0
bill Sm³ gas, last 12
9.29
mill Sm³ o.e. since Aug 1988
17
wellbores on file
3
licensees today

SODIR PRODUCTION PROFILES · SALEABLE VOLUMES · REPORTED THROUGH AUG 2026 · LAST VOLUME JAN 1998

Licensees

SHARES TODAY · LICENCE 873

CompanyShareSince
Aker BP ASAOPERATOR47.7%Sep 26, 2024
Equinor Energy AS40%Sep 26, 2024
ORLEN Upstream Norway AS12.3%Sep 26, 2024

Production licence 873: 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 Sm³Gas, bill Sm³NGL, mill tonnesCondensate, mill Sm³O.e., mill Sm³
Originally recoverable09.2200.079.29
Remaining00000

About the field

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

Development
Øst Frigg is a field in the central part of the North Sea, four kilometres east of the Frigg field. The water depth is 100 metres. Øst Frigg was discovered in 1973, and the plan for development and operation (PDO) was approved in 1984. The field was developed with two subsea templates and a central manifold station tied to the Frigg field. The production started in 1988.
Reservoir
Øst Frigg produced gas from sandstone of Eocene age in the Frigg Formation. The reservoir is at a depth of 1900 metres and has excellent quality. The field contains two separate structures, which are part of the same pressure system as the Frigg field. Appraisal drilling in 2025 confirmed the presence of oil in the Frigg Formation.
Recovery strategy
The field was produced by pressure depletion.
Transport
Gas was transported in a pipeline from the manifold to the Frigg field (TCP2) for processing, and further via pipeline the Shell-Esso Gas and Liquids (SEGAL) terminal at St Fergus in the UK.
Status
Øst Frigg was shut down in 1997, and the subsea templates were removed in 2001. The field is being redeveloped as part of Hugin in the Yggdrasil area.

Production by year

MONTHLY ROWS ADDED UP · NEWEST FIRST

YearOil, mill Sm³Gas, bill Sm³NGL, mill Sm³Condensate, mill Sm³O.e., mill Sm³Water, mill Sm³
19981 MONTH000000
199700.1000.10
199600.61000.610
199500.32000.320
199400.9800.010.990
199301.2700.011.280
199201.1100.011.120
199101.5600.011.580
199001.3800.011.380
198901.500.011.520
19885 MONTHS00.39000.390

Wellbores

Appraisal 8 · Production 5 · Shallow gas 3 · Wildcat 1

All 17 wellbores in Øst Frigg, searchable → · Discovery wellbore 25/2-1 →

Operator history

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/43576, documented in the API reference.