Brent crude climbed 0.45% to $114.02 a barrel and WTI added 0.42% to reach $100, putting Brent on course for a third consecutive weekly rise after Saudi Aramco pulled personnel from its Dhahran headquarters.
The Nasdaq Composite slid 2.58% to close at 26,008.86 and the S&P 500 shed 1.19% to end at 7,664.77 after corporate earnings reports reignited unease over heavy AI infrastructure outlays, while the Dow Jones Industrial Average inched higher, adding 0.03% to finish at 52,873.60.
Gold (XAU/USD) traded near $4,025 in early Asian hours on Friday, its weakest level in more than two months, after oil prices surged on fresh attacks in Saudi Arabia ahead of next week's Federal Reserve meeting.
President Donald Trump has charged that Iran is artificially pushing crude prices higher ahead of November's congressional midterms, insisting shipping through the Strait of Hormuz now exceeds pre-conflict levels.
Iran's Revolutionary Guard navy said its forces struck or mined seven ships, among them oil tankers, in the Persian Gulf, as Houthi attacks on Saudi Arabia drove Brent crude past $111 a barrel.
The US State Department has ordered non-emergency government employees and their families out of Saudi Arabia, citing security concerns tied to the conflict with Yemen's Houthi movement. Oil prices rose on the news.
US and Israeli forces have mapped out a brief, forceful wave of potential strikes on Iran, timed for once Pentagon deployments to the Middle East wrap up in early November, according to a New York Times account citing American officials.
Silver (XAG/USD) fell more than 3% on Thursday, dropping below $56.00 as a rally in oil prices pressured precious metals and put the year-to-date low at $54.77 back in view.
Brent climbed above $110 a barrel and WTI topped $99 after a mine explosion near the Strait of Hormuz and a fresh round of tanker and refinery strikes stoked fears of a broader Middle East supply shock.
Brent futures changed hands at $109.76 a barrel, not far off its strongest print since May, as new Houthi strikes against Saudi infrastructure overshadowed Washington's temporary easing of Russia-linked restrictions.