Ten more years for Troll B

Troll B has produced more than one billion barrels of oil. Planning is now under way for another ten years of value creation. (Photo: Equinor/Øyvind Hagen)

Troll B has produced more than one billion barrels of oil. Planning is now under way for another ten years of value creation. (Photo: Equinor/Øyvind Hagen)

4/20/2020 The authorities have granted consent to operator Equinor and the other licensees for a 10-year lifetime extension for the Troll B facility in the North Sea.

The extended lifetime for Troll B also includes the oil and gas pipelines that were included in the approved Plan for Development and Operation (PDO). The current consent expires in September this year. The Troll B start-up date was in September 1995.

Extension of Troll B’s lifetime to 2030 is one of the potential solutions for further developing gas production from the Troll Vest gas cap, Troll phase three.

Nine seismic surveys have been carried out on the Troll field, with the last one completed last summer.

All previous surveys have contributed to identify new well targets. The licensees expect the results from processing the data from the latest seismic survey will yield additional well targets. These can be drilled from the subsea templates tied to Troll B.

“Extended operation of Troll B secures a foundation for good resource management of significant oil and gas resources from the gigantic Troll field,” says Arvid Østhus, Assistant director Development and operations, North Sea in the NPD.

The Petroleum Safety Authority has also approved extended operation and believes that Troll B can be operated safely until the end of the licence period, based on an assessment of current technical integrity. This requires maintenance and modifications according to the lifetime extension plan.

Read more about the Troll field

 

Updated: 7/23/2024

Latest news

Appraisal well in the North Sea increases projection (16/1-EA-4 H)
9/25/2026 Aker BP and its partners Equinor and DNO have drilled an appraisal well on the "Verdandi" and "Lillefix" discoveries in the North Sea. This well increases the projected discovery size.
Production figures August 2026
9/22/2026 Preliminary production figures for August 2026 show an average daily production of 2 073 000 barrels of oil, NGL and condensate.
Aker BP has made a gas discovery in the North Sea (36/4-2 and 36/4-2 A)
9/16/2026 Preliminary calculations show that the size is between 0.15 and 2.4 million standard cubic metres of recoverable oil equivalent (Sm3 of o.e.), which corresponds to 1-15 million barrels.
Drilling permit for wellbore 25/9-5 S
9/15/2026 The Norwegian Offshore Directorate has granted Equinor Energy AS drilling permit for wellbore 25/9-5 S in production licence 1042.
Growing exploration interest
9/11/2026 The authorities have received applications from 21 companies in the Awards in Predefined Areas (APA) 2025. The deadline for applications was 1 September.
New NCS map 2026
9/8/2026 You can now download or order a printed version of the Directorate's most recent map of the Norwegian continental shelf (NCS).
Resource report 2026 in English
9/8/2026 The Resource report is now also available in English.
New director at the Norwegian Offshore Directorate
9/7/2026 Siv Fagerland Christensen has taken up her position as Director of governance, finance and shared services.
Register for our seminar on sub-basalt exploration
8/31/2026 Welcome to a seminar on sub-basalt exploration on 15 October 2026 at our offices. The seminar speakers will represent operators, suppliers, academia and the authorities.
Okea receives award for improved recovery on its oil fields
8/25/2026 This year's winner of the Norwegian Offshore Directorate's “Improved Recovery Award” has worked systematically to revitalise the Draugen and Brage fields.