Norway’s state-owned energy giant Equinor has released an integrated development concept that bundles multiple North Sea hydrocarbon discoveries into one unified mega-project, holding an estimated total resource volume of 240 million barrels of oil equivalent (boe). This makes it one of the largest early-stage development schemes on the Norwegian Continental Shelf (NCS).
As reported by Offshore Energy, the project is officially named Ringvei Vest. Equinor and its joint venture partners have reached a consensus on the project’s development concept. This large-scale subsea development will tie back to the Troll B Platform located in the Norwegian sector of the North Sea.
The development covers seven proven discoveries including Grosbeak, Swisher, Mulder, Kveikje, Toppand, Røver Sør and Røver Nord, alongside the prospective Grønngylt structure. Resources span eight production licenses shared among seven stakeholders:
Project Stakeholders
- Equinor
- Inpex Idemitsu Norge
- Wellesley Petroleum
- Vår Energi
- Aker BP
- Petoro
- DNO Norge
As the operator across all licenses, Equinor acts as the overall regional development architect. The company, together with its partners, has evaluated multiple technical layouts to finalize the scope of included discoveries and the tie-back host platform. The signed concept agreement marks a critical milestone in the project maturation process, locking in a unified development blueprint for seven discoveries and one prospect, and clearing the path for future joint field development opportunities.
Kjetil Hove, Executive Vice President of Exploration & Production Norway at Equinor:
“We estimate Ringvei Vest holds 240 million boe of recoverable resources. We have put in years of thorough technical evaluation. Working alongside our partners and Norwegian authorities, we have landed on the optimal development solution that maximizes efficient resource utilization.”
“The Norwegian Continental Shelf is maturing. New hydrocarbon finds are getting smaller, while overall development costs keep rising. To sustain steady offshore activity and deliver secure energy supplies to Europe, developing marginal discoveries adjacent to existing infrastructure and cross-license collaboration have become essential strategies. Equinor targets lifting its equity production on the NCS to 1.3 million barrels of oil equivalent per day by 2035.”
Technical Layout of Ringvei Vest
The Ringvei Vest development covers an extensive offshore area. The plan includes drilling 13 production wells routed through six subsea manifold templates. Wellstream fluids will undergo subsea separation before flowing to the Troll B Platform, which will also supply power to all subsea infrastructure.
All wells will be remotely controlled from Troll B. Separated crude oil will be piped to Mongstad for processing, while associated natural gas will be transported to Kollsnes.
The development scheme also involves installing a brand-new compressor unit on Troll B to expand the platform’s fluid processing capacity. Part of the platform’s power supply will be sourced from onshore power grids, enabling Ringvei Vest to operate with substantially lower greenhouse gas emissions during oil and gas production.
Project Timeline
Equinor confirmed the second gate decision (DG2) for project advancement is scheduled for the end of this year. Timelines for Final Investment Decision (FID), formal submission of development and operation plans, and first production remain unconfirmed and will be announced at a later stage.
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Equinor launches Ringvei Vest, a landmark integrated subsea development on the Norwegian Continental Shelf with 240 million boe resources. Read full details on partners, subsea layout, Troll B tie-back and low-carbon offshore production plans for North Sea oil & gas operators.
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Post time: Jun-25-2026