Further development of Johan Sverdrup in Oil & Companies News 17/06/2026 New volumes in the Johan Sverdrup area provide the basis for Johan Sverdrup phase 4. Equinor and the partnership are now maturing a new subsea development that will help maintain production and value creation from Norway’s largest oil-producing field. This also contributes to Europe’s energy security. Recently completed appraisal wells in the Johan Sverdrup area have proven increased oil volumes. Discoveries made in the Tonjer wells and Geitungen will now form the basis for Johan Sverdrup phase 4. “These are important and profitable volumes for Johan Sverdrup. By tying new resources to existing infrastructure, we can develop them quickly, with low costs and low emissions. At the same time, they contribute to maintaining production and value creation from one of Norway’s largest oil-producing field over time,” says Kjetil Hove, executive vice president for Development and Production Norway. Kjetil Hove, executive vice president for Development and Production Norway, visiting the Johan Sverdrup field in the North Sea. Photo: Arne Reidar Mortensen / ©Equinor The volumes from Tonjer west and east, and Geitungen are planned to be developed through a subsea development tied back to existing infrastructure on Johan Sverdrup. The resources will help maintain production from the field. “Johan Sverdrup has been the backbone of Norwegian oil production since its inception. In order to maintain production and value creation for decades to come, we must continuously develop new resources around the existing infrastructure. Phase 4 is a good example of how we can get more out of a world-class field,” says Hove. Tonjer is located in the northernmost part of the Geitungen terrace in the Johan Sverdrup area. Oil has previously been discovered in the area, but the volumes and potential have been uncertain. The drilling of two appraisal wells and a sidetrack has now provided the basis for a more precise asses