(As Adnoc is phasing out Murban, we are updating our benchmark focus to track Dubai first line futures.)
Oil prices advanced for a second consecutive session on Tuesday, as renewed military clashes between US and Iran in the Strait of Hormuz revived supply disruption fears.
Brent crude futures gained 0.7% to $91.13 per barrel, while ICE Dubai First Line (Platts) energy futures were trading nearly 2% higher at $87.01/bbl, its highest since early June.
"Crude rose for a second session as fresh hostilities between the US and Iran raised concerns about prolonged disruptions to energy flows through the Strait of Hormuz," Saxo Bank analysts said.
"Brent traded back above $91 after US forces struck an island in the Strait, prompting Iran to retaliate with attacks on the UAE and Jordan," they added.
The renewed friction follows recent direct exchanges, the first in a month, after US forces struck an Iranian island and threatened Kharg Island, prompting retaliatory Iranian attacks targeting the UAE and Jordan.
President Donald Trump subsequently warned of further potential strikes, shifting the geopolitical landscape back from a localized economic standoff to active military confrontation.
Despite persistent security risks highlighted by a supertanker fire caused by naval mines, physical crude continues to transit the Strait of Hormuz .
"Crude still transits the Strait of Hormuz despite a supertanker fire caused by naval mines, and Russian strikes on refineries appear to be tightening global refining capacity and lifting fuel margins," Saxo Bank analysts added.
Meanwhile, in the Middle East, Abu Dhabi National Oil Co. has reportedly restored its major Ruwais refinery to full operating capacity of 922,000 barrels a day following earlier war-related damages, successfully boosting exports of refined products like diesel and jet fuel.
The US Department of Energy's Strategic Petroleum Reserve data released Monday showed that SPR inventory levels as of Aug. 28 stood at 286.6 million barrels, down 3.1 mmbbls from 289.7 mmbbls a week earlier.