What is the primary objective of the TWIN project at the Troll field?

The primary objective of the TWIN project is to sustain and optimize gas production levels from the Troll field. By investing in new subsea templates and wells, the operators can access untapped reserves and maintain the high-pressure delivery required to export gas to continental Europe.

Who are the partners involved in this investment decision?

The project is led by the operator Equinor, in partnership with state-owned Petoro, Shell, TotalEnergies, and ConocoPhillips. These companies hold varying working interests in the Troll license and share the $412 million capital expenditure.

Why is this development significant for European energy security?

Norway currently supplies over 30% of Europe's natural gas, and the Troll field is the largest single source of this supply. Ensuring that Troll can maintain its production plateau prevents supply deficits and helps stabilize European energy markets amid ongoing geopolitical tensions.

Offshore Technology · June 22, 2026 (Jun 22) · 1 min read

Equinor and partners approve TWIN subsea project at Troll field

Analysis

AI-assisted analysis · reviewed by Yuri Kan

Equinor and its joint venture partners have sanctioned a $412 million (Nkr4bn) subsea investment at the prolific Troll field in the North Sea. Known as the TWIN project, this initiative aims to maximize recovery and sustain gas plateau production from one of Europe's most critical energy hubs. By deploying advanced subsea infrastructure, the partners are securing long-term export capacity to continental Europe at a time when energy security remains paramount.

Key Facts

Equinor and its partners have formally approved an investment of just over Nkr4 billion ($412 million) for the Troll field development.
The initiative, designated as the TWIN project, focuses on installing new subsea infrastructure to optimize gas production.
The Troll field, located in the northern part of the North Sea, is Norway's largest gas-producing asset and a cornerstone of European energy security.
Equinor operates the Troll field alongside key license partners including Petoro, Shell, TotalEnergies, and ConocoPhillips.
The project involves the installation of new subsea templates and the drilling of new production wells to tap into remaining reserves.

Background & Context

The Troll field has been the backbone of Norwegian gas exports to Europe since it came on stream in 1996. Following the reduction of Russian pipeline gas imports to Europe in 2022, Norway has become the continent's single largest gas supplier, with Troll accounting for a massive share of this supply. The TWIN project represents the next phase of subsea optimization, building upon previous multi-billion dollar investments like the Troll Phase 3 project which targeted the field's gas cap.

Market Impact

This investment reinforces Norway's strategic role as Europe's primary energy guarantor by ensuring the Troll field can maintain its high delivery rates through the late 2020s and beyond. For the subsea supply chain, this contract represents a significant boost, likely benefiting major Norwegian and international offshore service providers. Furthermore, the project demonstrates that despite long-term transition goals, major operators are still willing to commit substantial capital to brownfield gas projects with low carbon intensity per barrel equivalent.

What to Watch

Following the investment decision, the partnership will proceed with awarding key engineering, procurement, construction, and installation (EPCI) contracts for the subsea templates and flowlines. Drilling operations for the new production wells are expected to commence in the coming years, with the new infrastructure projected to tie back to existing platforms to maintain plateau production targets.

Frequently Asked Questions

What is the primary objective of the TWIN project at the Troll field?: The primary objective of the TWIN project is to sustain and optimize gas production levels from the Troll field. By investing in new subsea templates and wells, the operators can access untapped reserves and maintain the high-pressure delivery required to export gas to continental Europe.
Who are the partners involved in this investment decision?: The project is led by the operator Equinor, in partnership with state-owned Petoro, Shell, TotalEnergies, and ConocoPhillips. These companies hold varying working interests in the Troll license and share the $412 million capital expenditure.
Why is this development significant for European energy security?: Norway currently supplies over 30% of Europe's natural gas, and the Troll field is the largest single source of this supply. Ensuring that Troll can maintain its production plateau prevents supply deficits and helps stabilize European energy markets amid ongoing geopolitical tensions.

Read on Offshore Technology