
Physical premiums for North Sea oil climbed to record levels after Saudi Aramco informed European customers they would receive no supplies under long-term agreements next month.
Norway's Johan Sverdrup crude was offered at premiums up to $35 a barrel above the Dated Brent benchmark, surging from a 60-cent premium two weeks earlier.
The supply crunch follows an attack on Saudi Arabia's East-West pipeline, forcing European refiners into a buying frenzy with diesel prices exceeding $200 a barrel.