Troll B has produced more than one billion barrels of oil. Credit: Equinor/Øyvind Hagen.

Equinor has received approval from the Norwegian Petroleum Directorate (NPD) for the extended operation of the Troll B offshore platform in the North Sea for a further ten years.

The latest development follows the consent received by Equinor from the Petroleum Safety Authority (PSA) Norway for the extended operation of the Troll B facility.

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According to NPD, the extended lifetime for the facility includes its oil and gas pipelines, which were part of the field development plan.

The Troll oil and gas field is located 65km outside Bergen on Norway’s west coast, at a water depth of 300m.

Operator Equinor currently holds a 30.58% ownership of the field, while the remaining stake is held by Petoro (56%), Norske Shell (8.10%), Total E&P Norge (3.69%) and ConocoPhillips Skandinavia (1.62%).

The NPD said the extension of Troll B’s lifetime until 2030 is one of the key solutions for further developing gas production from the Troll Vest gas cap, the Troll phase three project.

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Until now, nine seismic surveys have been conducted on the Troll field.

NPD North Sea development and operations assistant director Arvid Østhus said: “Extended operation of Troll B secures a foundation for good resource management of significant oil and gas resources from the gigantic Troll field.”

In January this year, Aker Solutions secured a front-end engineering (FEED) study from Equinor to accommodate imports of power from shore for the Troll B and C platforms. This contract is aimed at reducing CO2 emissions from the Troll field.

In December 2016, Troll B facility produced one billion barrels of oil equivalent (boe) since it began to extract oil in 1995.