A view of the Johan Sverdrup oilfield in the North Sea, January 7, 2020.
Equinor's (EQNR.OL), Johan Sverdrup oilfield in the North Sea has suffered a power outage that is estimated to last for some 8 hours, a regulatory statement posted on the Nord Pool website showed on Tuesday.
"Operational issues, troubleshooting in progress," the message said.
Operator Equinor did not immediately respond to a request for comment.
Previous power outages at Sverdrup have resulted in full or partial shutdowns of oil production.
Sverdrup is western Europe's largest producing field, pumping last year at a rate of around 755,000 barrels of oil per day.
