Johan Castberg – World’s Largest Subsea Field Under Development Receives Approval

The plan for development and operation of the Johan Castberg field in the Barents Sea was approved by the Norwegian Parliament on Monday 11 June. The plan will now be submitted to the Ministry of Petroleum and Energy for formal approval.

“This is a great day for the project and for the licence partners. After all, this is the first development plan to be approved for Equinor! And it is not any project either. It was a long road for Johan Castberg after the first discovery in 2011. Today we have a solid project that will be central in the further development of the northern regions,” says Margareth Øvrum, Equinor’s executive vice president for Technology, Projects and Drilling.

With first oil scheduled for 2022, the field has a production horizon of 30 years. Capital expenditures for the project are NOK 49 billion, and recoverable resources are estimated at 450-650 million barrels of oil equivalent. The field development consists of a production vessel and a comprehensive subsea system, including a total of 30 wells distributed on 10 templates and 2 satellite structures. This is currently the largest subsea field under development globally.

“The project is on schedule, and gradually we will see the results of the construction work. Many yards and companies across the country will be busy with Johan Castberg deliveries in the years to come,” says Knut Gjertsen, project director for Johan Castberg.

We could not take for granted that the project would be realizable when the oil price dropped in 2014. The original capital expenditures were estimated at more than NOK 100 billion and the break-even oil price was above USD 80 per barrel.

The project has worked hard together with suppliers and partners, they have changed the concept and found new solutions for realizing the development. Today the project is profitable at an oil price below USD 35 per barrel.

The Johan Castberg field will have a supply and helicopter base in Hammerfest and an operations organisation in Harstad. The costs of operating the field are estimated at some NOK 1.15 billion per year, representing around 1700 man-years nationwide, some 500 of which will be performed in Northern Norway. This includes both direct and indirect spinoffs.

Equinor and the other operators with oil deposits in the Barents Sea are looking at the possibilities of oil transfer at Veidnes in Finnmark county, including both a downscaled terminal solution and ship-to-ship transfer.

The Johan Castberg partnership consists of Equinor (operator 50%), Eni Norge (30%) and Petoro (20%).

Press Release: equinor.com

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