Brent crude prices crossed $100 per barrel for the first time since late July as Iran attacked 10 ships near the Strait of Hormuz, deepening the ongoing Middle East conflict.
Brent futures were last seen up 3.5% at $101.34 a barrel on Wednesday, after trading at as high as $101.58 earlier in the session. West Texas Intermediate rose 3.8% to $96.56, off the day's high of $96.82.
Both benchmarks have advanced more than 12% so far this month following two consecutive monthly gains.
Iran said Wednesday it attacked 10 ships near the Strait of Hormuz -- a key crude and energy chokepoint, Reuters reported. Tehran reportedly launched ballistic missiles at a base used by US forces in Jordan.
That followed American forces destroying five Iranian crude oil carriers in response to Tehran firing missiles twice at a US navy warship, US Central Command said Tuesday.
Yemen's Iran-allied Houthi group said Wednesday that Saudi-backed forces launched airstrikes overnight across four Yemeni provinces, the Associated Press reported. The Houthis previously struck civilian and economic sites in Saudi Arabia on Tuesday, including Saudi Aramco's facilities.
"Together, these developments point to continued supply tightness and an elevated risk of further price gains," Saxo Bank said Wednesday in a report.
In the US, the average diesel price hit a fresh record high at $5.9424 per gallon, up from Tuesday's $5.9012, according to data from AAA, a travel organization that tracks fuel prices in the world's biggest economy. The regular gas price rose to $4.2245 per gallon from $4.1514.
In August, Washington launched an economic campaign to cut off financial channels that support Iran. Earlier the same month, a 60-day ceasefire between the US and Iran expired.
"Recent developments only reinforce the view that we're still some way from a restart in talks," ING Bank said Wednesday in a report. "In the meantime, the market is likely to continue to price in a sizeable risk premium."



