Sleipner Øst
North Sea · Gas/condensate · Producing · Operator Equinor Energy AS
Sleipner Øst is a gas and condensate field in the North Sea operated by Equinor Energy AS, discovered in 1981 by wellbore 15/9-9. The Norwegian Offshore Directorate lists it as producing.
In the 12 months reported through August 2026 it sold 0.06 million Sm³ of oil equivalents (0.01 million Sm³ of oil, 0.04 billion Sm³ of gas), down 9% on the 12 months before.
Since August 1993 it has reported 250.4 million Sm³ of oil equivalents: 0.4 million Sm³ of oil and 197.8 billion Sm³ of gas.
3 companies hold it; the largest share is Equinor Energy AS with 59.6%.
41 wellbores are on file for the field.
- 0.06
- mill Sm³ o.e., last 12 reported -9%
- 0.01
- mill Sm³ oil, last 12
- 0.04
- bill Sm³ gas, last 12
- 250.4
- mill Sm³ o.e. since Aug 1993
- 41
- 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 12,112 · prior 12 10,896(+11%)
Gas by month
TEN YEARS · SM³ SOLD
Last 12 months 42,531,000 · prior 12 49,827,000(-15%)
Produced water by month
TEN YEARS · SM³ IN THE FIELD
Last 12 months 8,636 · prior 12 11,952(-28%)
Licensees
SHARES TODAY · UNIT SLEIPNER ØST UNIT
| Company | Share | Since |
|---|---|---|
| Equinor Energy ASOPERATOR | 59.6% | Sep 25, 2024 |
| ORLEN Upstream Norway AS | 25% | Sep 25, 2024 |
| Vår Energi ASA | 15.4% | Sep 25, 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 | 0.43 | 69.4 | 13.4 | 26.6 | 121.9 |
| Remaining | 0.01 | 0.06 | 0 | 0 | 0.07 |
About the field
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
- Development
- Sleipner Øst is a field in the central part of the North Sea. The water depth is 80 metres. Sleipner Øst was discovered in 1981, and the plan for development and operation (PDO) was approved in 1986. The field has been developed with Sleipner A, an integrated processing, drilling and accommodation facility with a concrete base structure. The development includes the Sleipner R riser facility, which connects Sleipner A to the pipelines for gas transport, and the Sleipner T facility for processing and CO2 removal. The production started in 1993. A PDO for Loke Heimdal was approved in 1991 and for Loke Triassic in 1995. Two subsea templates were installed, one for production from the northern part of Sleipner Øst and one for production from the Loke deposit. The Alpha Nord segment was developed in 2004 with a subsea template connected to Sleipner T. The Utgard field is tied-back to Sleipner T for processing and CO2 removal. The CO2 is injected into the Utsira Formation via a dedicated well at Sleipner A. The Sigyn, Gungne, Gudrun and Gina Krog fields are tied-back to Sleipner A.
- Reservoir
- Sleipner Øst produces gas and condensate. The Sleipner Øst and Loke reservoirs are in Paleocene turbidite sandstone in the Ty Formation, Middle Jurassic shallow marine sandstone in the Hugin Formation and in continental sandstone in the Triassic Skagerrak Formation. In addition, gas has been proven in the Heimdal Formation, overlying the Ty Formation. The Ty Formation has good reservoir quality, while the Skagerrak Formation generally has poorer reservoir quality than both Ty and Hugin Formations. The reservoirs are at a depth of 2300 metres.
- Recovery strategy
- The Hugin Formation reservoir is produced by pressure depletion. The reservoir in the Ty Formation was produced by dry gas recycling until 2005, and production from the Ty reservoir stopped in 2012. To optimise production, wells are produced at a reduced inlet pressure.
- Transport
- Sales gas is exported from the Sleipner A facility via Gassled (Area D) to market. Unstable condensate is transported to the Kårstø terminal by pipeline.
- Status
- Sleipner Øst is in the late tail production phase. The main focus is on increasing reserves and decreasing production decline. It is expected that Sleipner Øst continues operation for tied-back fields after cease of own production. Sleipner has been partly supplied with power from shore via the Gina Krog platform since 2024.
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 | 0.01 | 0.03 | 0 | 0 | 0.04 | 0.01 |
| 2025 | 0.01 | 0.05 | 0 | 0 | 0.06 | 0.01 |
| 2024 | 0.01 | 0.07 | 0 | 0 | 0.09 | 0.01 |
| 2023 | 0.02 | 0.09 | 0.01 | 0 | 0.11 | 0.01 |
| 2022 | 0.01 | 0.08 | 0 | 0 | 0.1 | 0.01 |
| 2021 | 0.02 | 0.09 | 0.01 | 0 | 0.12 | 0.01 |
| 2020 | 0.03 | 0.14 | 0.03 | 0 | 0.21 | 0.02 |
| 2019 | 0.04 | 0.17 | 0.05 | 0 | 0.26 | 0.01 |
| 2018 | 0.04 | 0.2 | 0.04 | 0 | 0.29 | 0.02 |
| 2017 | 0.05 | 0.14 | 0.03 | 0 | 0.22 | 0.02 |
| 2016 | 0.06 | 0.29 | 0.06 | 0 | 0.41 | 0.02 |
| 2015 | 0.07 | 0.35 | 0.07 | 0 | 0.49 | 0.02 |
| 2014 | 0.05 | 1.51 | 0.09 | 0.02 | 1.67 | 0.02 |
| 2013 | 0 | 5.94 | 0.14 | 0.06 | 6.14 | 0.02 |
| 2012 | 0 | 6.9 | 0.21 | 0.09 | 7.2 | 0.03 |
| 2011 | 0 | 8.1 | 0.26 | 0.14 | 8.5 | 0.03 |
| 2010 | 0 | 8.09 | 0.31 | 0.14 | 8.54 | 0.03 |
| 2009 | 0 | 10.1 | 0.41 | 0.22 | 10.7 | 0.05 |
| 2008 | 0 | 11.3 | 0.48 | 0.31 | 12.1 | 0.15 |
| 2007 | 0 | 13.4 | 0.61 | 0.41 | 14.4 | 0.22 |
| 2006 | 0 | 13.2 | 0.7 | 0.47 | 14.4 | 0.21 |
| 2005 | 0 | 14.3 | 0.81 | 0.61 | 15.7 | 0.09 |
| 2004 | 0 | 12.7 | 0.9 | 0.72 | 14.3 | 0.06 |
| 2003 | 0 | 13.2 | 1.08 | 1.01 | 15.3 | 0.06 |
| 2002 | 0 | 13.5 | 1.73 | 1.53 | 16.7 | 0.1 |
| 2001 | 0 | 11.6 | 1.82 | 1.88 | 15.3 | 0.04 |
| 2000 | 0 | 11.8 | 1.85 | 2.11 | 15.8 | 0.05 |
| 1999 | 0 | 8.07 | 2.21 | 2.64 | 12.9 | 0 |
| 1998 | 0 | 7.2 | 2.1 | 2.59 | 11.9 | 0 |
| 1997 | 0 | 7.5 | 2.19 | 2.7 | 12.4 | 0 |
| 1996 | 0 | 7.63 | 2.55 | 3.2 | 13.4 | 0 |
| 1995 | 0 | 5.2 | 2.49 | 3.17 | 10.9 | 0 |
| 1994 | 0 | 3.95 | 1.78 | 2.38 | 8.12 | 0 |
| 19935 MONTHS | 0 | 0.83 | 0.3 | 0.44 | 1.57 | 0 |
Wellbores
Production 25 · Injection 7 · Appraisal 3 · Wildcat 3 · Unstated 2 · Observation 1
All 41 wellbores in Sleipner Øst, searchable → · Discovery wellbore 15/9-9 →
Operator history
- Equinor Energy ASMay 16, 2018 to today
- Statoil Petroleum ASNov 1, 2009 to May 15, 2018
- StatoilHydro Petroleum ASJan 1, 2009 to Oct 31, 2009
- StatoilHydro ASAOct 1, 2007 to Dec 31, 2008
- Statoil ASA (old)May 10, 2001 to Sep 30, 2007
- Den norske stats oljeselskap a.sDec 15, 1986 to May 9, 2001
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/43478, documented in the API reference.