Equinor advances Johan Sverdrup phase 4 subsea development
- Appraisal wells at Tonjer and Geitungen indicate combined resources of 20–30 million barrels of oil equivalent.
- Planned development is a subsea tie-back to existing Johan Sverdrup infrastructure to enable quick, low-cost, low-emission production.
- Project is being matured toward an investment decision with a possible production start-up in 2029.
- Licensees in the Johan Sverdrup Unit: Equinor 42.62%, Aker BP 31.57%, Petoro 17.36%, TotalEnergies 8.44%.
New appraisal results
Recent drilling, including two appraisal wells and a sidetrack, in the Johan Sverdrup area has proven increased oil volumes in Tonjer and Geitungen. Tonjer sits in the northernmost part of the Geitungen terrace where prior discoveries had uncertain volumes and potential.
Resource estimate
Preliminary combined estimates for Tonjer west and east and Geitungen are between 20 and 30 million barrels of oil equivalent. Further subsurface analyses will refine the resource assessment.
Development plan and timing
The discoveries are planned to be developed as a subsea development tied back to Johan Sverdrup’s existing infrastructure, enabling faster development with lower cost and emissions. The project is being matured toward an investment decision with a possible production start-up in 2029.
Strategic context and partners
The tie-back aligns with the partners’ strategy to increase value from existing fields through accelerated subsea projects that support continued production and value creation from Johan Sverdrup. License holders are Equinor (42.62%), Aker BP (31.57%), Petoro (17.36%) and TotalEnergies (8.44%).
Source: Equinor