NORWAY · FIELDS · NPDID 43771

Heidrun

Norwegian Sea · Oil/gas · Producing · Operator Equinor Energy AS

Heidrun is an oil and gas field in the Norwegian Sea operated by Equinor Energy AS, discovered in 1985 by wellbore 6507/7-2. The Norwegian Offshore Directorate lists it as producing.

In the 12 months reported through August 2026 it sold 3.64 million Sm³ of oil equivalents (1.81 million Sm³ of oil, 1.7 billion Sm³ of gas), down 2% on the 12 months before.

Since October 1995 it has reported 216.3 million Sm³ of oil equivalents: 180.5 million Sm³ of oil and 33.2 billion Sm³ of gas.

4 companies hold it; the largest share is Petoro AS with 36.4%.

212 wellbores are on file for the field.

3.64: mill Sm³ o.e., last 12 reported -2%
1.81: mill Sm³ oil, last 12
1.7: bill Sm³ gas, last 12
216.3: mill Sm³ o.e. since Oct 1995
212: wellbores on file
4: licensees today

SODIR PRODUCTION PROFILES · SALEABLE VOLUMES · REPORTED THROUGH AUG 2026

Oil by month

TEN YEARS · SM³ SOLD

Last 12 months 1,809,641 · prior 12 2,076,231(-13%)

Gas by month

TEN YEARS · SM³ SOLD

Last 12 months 1,703,832,000 · prior 12 1,506,703,000(+13%)

Produced water by month

TEN YEARS · SM³ IN THE FIELD

Last 12 months 2,629,411 · prior 12 2,660,260(-1%)

Licensees

SHARES TODAY · UNIT HEIDRUN UNIT

Company	Share	Since
Petoro AS	36.3979%	Jan 1, 2025
Equinor Energy ASOPERATOR	34.4387%	Jan 1, 2025
ConocoPhillips Skandinavia AS	23.9882%	Jan 1, 2025
Vår Energi ASA	5.1752%	Jan 1, 2025

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	206.1	55.8	3.35	0	268.3
Remaining	27.1	22.6	1.99	0	53.4

About the field

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

Development: Heidrun is a field on Haltenbanken in the Norwegian Sea, 30 kilometres northeast of the Åsgard field. The water depth is 350 metres. Heidrun was discovered in 1985, and the plan for development and operation (PDO) was approved in 1991. The field has been developed with the world's first ever floating concrete tension-leg platform (TLP), installed over a large subsea template with 56 well slots. Six subsea templates in the southern and northern areas are additionally tied-back to the TLP. The production started in 1995. The floating storage unit (FSU) Heidrun B is permanently moored at the Heidrun platform since 2015. The PDO for the Heidrun northern flank was approved in 2000. The Maria field receives water for injection from Heidrun. The Dvalin field has a dedicated gas processing module on the Heidrun platform.
Reservoir: Heidrun produces oil and gas from Lower and Middle Jurassic sandstone in the Åre, Tilje, Ile and Garn Formations. The reservoir is at a depth of 2300 metres and is heavily faulted and segmented. The Ile and Garn Formations have good reservoir quality, while the Åre and Tilje Formations are more complex.
Recovery strategy: The field is produced with pressure maintenance using water and gas injection in the Ile and Garn Formations. In the more complex parts of the reservoir, in the Åre and Tilje Formations, the main recovery strategy is water injection. Some segments are also produced by pressure depletion.
Transport: The oil is exported via the Heidrun B FSU onto tankers and shipped to the market. The gas is exported via Haltenpipe to the Tjeldbergodden terminal and via the Åsgard Transport System (ÅTS) to the Kårstø terminal. The Dvalin gas is exported via Polarled to the Nyhamna terminal.
Status: The production from Heidrun is maintained through water and gas injection as well as drilling of new production and injection wells. Different methods are being evaluated and implemented to enhance oil and gas recovery and prolong the lifetime of the field.

Production by year

MONTHLY ROWS ADDED UP · NEWEST FIRST

Year	Oil, mill Sm³	Gas, bill Sm³	NGL, mill Sm³	O.e., mill Sm³	Water, mill Sm³
20268 MONTHS	1.2	1.16	0.08	2.44	1.77
2025	1.98	1.62	0.12	3.73	2.65
2024	2.22	1.66	0.19	4.06	2.83
2023	2.46	1.76	0.16	4.38	2.63
2022	2.7	1.91	0.18	4.79	2.27
2021	3.2	1.63	0.19	5.02	2.84
2020	2.85	1.54	0.16	4.55	3.31
2019	3.03	1.47	0.14	4.64	3.92
2018	2.85	1.24	0.12	4.21	4.02
2017	3.11	1.45	0.13	4.7	4.59
2016	3.4	0.8	0.03	4.23	4.89
2015	3.09	0.77	0	3.85	4.97
2014	2.95	0.71	0.01	3.67	4.84
2013	3.46	0.78	0.03	4.27	5.05
2012	3.18	0.67	0	3.85	4.75
2011	3.7	0.78	0.01	4.49	4.71
2010	3.21	0.85	0.04	4.1	4.04
2009	4.56	0.88	0.06	5.49	4.62
2008	5.46	1.02	0.05	6.53	4.39
2007	6.2	0.92	0.07	7.19	4.11
2006	8	1.15	0.1	9.25	4.66
2005	8.14	1.1	0.09	9.32	4.61
2004	8.58	1.34	0.16	10.1	3.69
2003	9.07	1.34	0.17	10.6	3.72
2002	10.1	1.14	0.11	11.4	2.37
2001	10.2	1.34	0.19	11.8	1.63
2000	10.6	0.61	0	11.2	1.7
1999	12.5	0.64	0	13.2	1.03
1998	11.7	0.57	0	12.3	0
1997	13.5	0.33	0	13.8	0
1996	12.2	0	0	12.2	0
19953 MONTHS	1.06	0	0	1.06	0

Wellbores

Production 134 · Injection 43 · Observation 22 · Appraisal 10 · Wildcat 3

All 212 wellbores in Heidrun, searchable → · Discovery wellbore 6507/7-2 →

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.sOct 18, 1995 to May 9, 2001
Norske Conoco A/SMay 14, 1991 to Oct 17, 1995

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/43771, documented in the API reference.