Oil prices climbed $1 a barrel today to trade above $75 a barrel after Enbridge shut down its biggest pipeline.

The company closed its 670,000 barrel per day Line 6A, the largest of its major three lines, after a leak was discovered near Romeoville, Illinois. Enbridge supplies Canadian oil to refineries in the US Midwest and a storage hub in Oklahoma.

For October delivery US crude rose $1 to stand at $75.25 at 06.41 GMT, while London Brent crude dropped 6¢ to $77.41, reports Reuters.

US petroleum inventories climbed to an all-time high on a weekly basis, a government report revealed on 9 September.