Workers at Norway’s Gullfaks and Draugen oil and gas platforms are expected to strike from midnight today if talks between unions and field operators fail, according to the Norwegian Oil Industry Association (OLF).

Around 400 workers on the Gullfaks B and Gullfaks C fields, operated by Statoil, and Shell‘s Draugen field plan to strike if no agreement is reached with management about pay.

Three trade unions – Industri Energi, SAFE and Lederne – are negotiating with the companies to reach an agreement, OLF said.

The strikes could also affect operations in other fields, potentially cutting supplies from Norway, Europe’s biggest oil and gas producer.