Iran's supreme leader vows revenge for father's killing as oil risk spikes

Iran's Supreme Leader Mojtaba Khamenei on Saturday vowed revenge for his father's killing in US-Israeli airstrikes, escalating a confrontation that has already pushed crude oil above $90 a barrel and disrupted shipping through the Strait of Hormuz.

"This revenge is the demand of our nation, and it will most certainly be carried out," Khamenei wrote on Telegram, in his first public statement since the Feb. 28 strike that killed Ayatollah Ali Khamenei and seriously wounded his son. "Whether we are present or not, it will come to pass."

The threat came as weeklong funeral ceremonies for the elder Khamenei drew massive crowds in Mashhad, with demonstrators carrying banners calling for President Donald Trump's death. Trump responded on Truth Social that "1,000 Missiles are Locked and Loaded" at Iran, adding he had given standing orders for a response that would "completely decimate and destroy all areas of Iran" should he be targeted.

The exchange marks the most direct leadership-level threat since the US and Iran signed a 60-day ceasefire memorandum in June, which Trump declared dead this week after three commercial tankers were attacked near Omani waters. With the Strait of Hormuz handling about 21% of global oil trade, any renewed disruption risks a supply shock that would ripple through energy markets and global inflation expectations.

Ceasefire unravels after 17 days

The June memorandum of understanding had provided a fragile framework for de-escalation, including commitments to keep the Strait of Hormuz open for commercial shipping. But the agreement began cracking within weeks. On July 8, Iran fired on three tankers transiting a US-recommended route through Omani waters, prompting nearly 200 US retaliatory strikes that killed 17 people and injured 115, according to Iranian officials. Iran responded with strikes on US allies in the Gulf.

Iranian officials privately acknowledged the tanker attacks were a mistake and blamed a rogue internal group, US media reported. But the damage to the ceasefire was already done. Trump called off the accord, removed the US waiver on Iranian oil sanctions, and launched a new wave of airstrikes.

The last time US-Iran tensions escalated to this level — following the February airstrikes that killed the supreme leader — Brent crude surged more than 15% in two weeks while gold climbed above $3,000 an ounce as investors fled to safe havens. The VIX, Wall Street's fear gauge, spiked above 35.

Strait of Hormuz remains the flashpoint

The waterway between the Persian Gulf and the Gulf of Oman carries roughly one-fifth of the world's oil supply, making it the single most critical chokepoint for global energy markets. During the initial phase of the conflict in March, traffic through the strait collapsed by as much as 60%, according to shipping data, sending gasoline prices higher at US pumps and reigniting inflation concerns.

Iran's new leadership has signaled no willingness to back down. On Sunday, Iranian Foreign Ministry Spokesperson Baghaei said revenge for the supreme leader's killing was "a basic principle and public demand," adding that the ministry is documenting crimes through international legal mechanisms.

For investors, the key variable is whether the rhetoric translates into action. Trump's explicit threat of overwhelming retaliation — "to just literally bomb them at levels that they've never seen before," he told the New York Post — raises the stakes of any Iranian attempt on his life. The president said he has been "on their list for a long time" and has left standing instructions for a massive military response.

Talks mediated by Oman remain technically alive, US officials said, but the window for diplomacy is narrowing. With both sides locked in a cycle of threats and retaliation, the next move in the Strait of Hormuz could determine whether the region tips back into full-scale war.

This article is for informational purposes only and does not constitute investment advice.