Brent crude futures surged 99 cents, or 1.2%, to trade at $85.72 a barrel on Tuesday, driven by renewed fears of supply disruption in the Middle East.
West Texas Intermediate (WTI) futures also advanced, climbing 64 cents, or 0.8%, in tandem with the global benchmark.
08% to $72.44 after reports indicated Iran had expanded its military operations against Gulf states.
The sharp repricing reflects market anxiety over the rapid escalation of hostilities in the region.
Traders are increasingly pricing in the risk that expanding military strikes could disrupt key shipping routes and energy infrastructure, tightening global supply at a time when demand remains resilient.
This latest spike follows a volatile period for energy markets.
Earlier in the week, Brent had already climbed 3.08% to $72.44 after reports indicated Iran had expanded its military operations against Gulf states.