Oil movements through the region have continued despite the conflict, but further attacks on tankers or infrastructure could increase the risk of more significant disruptions
Iran on Monday threatened retaliation against further US attacks on its assets. The warning followed strikes between the two sides over the weekend, with no diplomatic breakthrough reported
Brent crude futures rose $2.11, or 2.40 per cent, to $90.20 a barrel, while US West Texas Intermediate (WTI) crude gained $1.89, or 2.27 per cent, to $85.30 a barrel
Both benchmarks had settled more than $1 higher on Tuesday, reaching their highest closing levels since July 31