Edit: Snopes looked into this: https://www.snopes.com/news/2025/03/04/norwegian-fuel-us-navy/

Norwegian fuel company Haltbakk Bunkers has announced it will cease supplying fuel to U.S. military forces in Norway and American ships docking in Norwegian ports, citing dissatisfaction with recent U.S. policy towards Ukraine.
https://ukdefencejournal.org.uk/norwegian-fuel-supplier-refuses-u-s-warships-over-ukraine/