Campaign group Uplift is challenging the approval of the project, arguing that the Energy Secretary failed to demonstrate how Rosebank aligns with the government's net-zero plan for 2050.

The dispute revolves around the contractor Kaefer's refusal to provide a cost-of-living payment for 2023.

The dispute encompasses crews on Equinor’s Mariner platform and TAQA platforms, which include Harding, Tern Alpha, East Brae, Brae Alpha, and the North Cormorant.

Approximately 30 Unite members working on the EnQuest-owned asset, including electrical, production, and mechanical technicians, deck crew, scaffolders, and crane operators, will participate in the ballot, which opens on September 11 and closes on October 12.

This accord aims to avert potential industrial action. However, Chevron remains embroiled in a labor standoff as it lacks a comparable agreement.

The trade union Unite confirmed that around 80 contractors stationed on Ithaca Energy assets, including the FPF-1, Captain, Alba, and Alba North installations, have given an "emphatic" mandate for industrial action.

Three Norwegian unions representing rig workers have successfully negotiated a 6.5 percent increase in minimum pay with the Norwegian Shipowners' Association, preventing a strike that would have halted well activity on Norway's continental shelf.