Oil prices were on track to for a 10 percent weekly jump on Friday (October 9).
Despite dipping slightly during the day, Brent was trading at just over $43 a barrel, while West Texas Intermediate crude was at just over $40.
That put both benchmarks on course for their biggest weekly gains since early June.
It's on the back of supply cuts caused by a storm in the Gulf of Mexico.
As well as a strike by offshore workers in Norway.
Norwegian oil company and labour officials said they would meet with a state-appointed mediator on Friday in an attempt to end the a strike.
An escalation could almost triple the existing outage if no solution is reached by October 14th.
In the Gulf of Mexico, Hurricane Delta has shut down 92% of the region's oil output.
That's the most since Hurricane Katrina in 2005.
Producers have also halted nearly 62% of the region's natural gas output.
But analysts say they expect an oil price correction when the Norway strike is resolved and the hurricane in the US goes away.
One described the $40+ price levels as "fragile as glass".