Equinor Advances Johan Sverdrup Phase 4 with 20-30 Million Boe Discoveries
EQNR•Equinor confirmed appraisal drilling discoveries at Tonjer West, Tonjer East and Geitungen with combined 20-30 million boe potential, advancing Johan Sverdrup Phase 4 toward a final investment decision. Production startup is targeted for 2029, leveraging existing infrastructure to lower development costs and extend field life.
1. New Discoveries at Johan Sverdrup
Appraisal drilling at the Tonjer West, Tonjer East and Geitungen prospects confirmed additional recoverable resources estimated at 20-30 million barrels of oil equivalent. These volumes form the basis of a proposed Johan Sverdrup Phase 4 subsea development tied back to the field’s existing platform.
2. Phase 4 Development and Timeline
The partners are maturing the project toward a final investment decision with production startup targeted for 2029. By utilizing current Johan Sverdrup infrastructure, the development aims to accelerate sanctioning, reduce capital expenditure and cut emissions compared with standalone offshore projects.
3. Ownership Stakes and Strategic Impact
The Johan Sverdrup Unit comprises Equinor (42.62%), Aker BP (31.7163%), Petoro (17.36%) and TotalEnergies (8.44%), following a recent slight increase in Aker BP’s interest. The discoveries are expected to sustain output, extend the field’s productive life and bolster European energy security through low-cost North Sea supply.
