US sanctions Iran-linked tankers as Brent crude tops $87

The US imposed sanctions on oil tankers linked to Iranian crude shipments, escalating pressure on Tehran's export revenue as Brent crude surged 3.8% to $87.30 a barrel on mounting supply disruption risks.

The move targets a critical artery of Iran's oil trade, which the Islamic Revolutionary Guard Corps has used to bypass existing sanctions through shadow tankers and falsified documents. The IRGC's illicit oil sales generate an estimated $12.4 billion to $25 billion annually, according to data from the Revolutionary Guard-linked Tasnim News Agency. Iran's total oil export revenue during the current conflict stands at about $11 billion, with an additional $6.5 billion earned during a prior ceasefire period.

Brent crude rose $3.20 to $87.30 a barrel, while WTI crude gained 3.8% to $82.30. The US average gasoline price climbed to $4.10 a gallon, AAA data showed, adding to consumer frustration after five years of elevated inflation. The sanctions come as Iran's economy faces 88.6% inflation, with 32 million to 40 million citizens living below the poverty line, according to the Statistical Centre of Iran. An Iranian worker earning about 160 million rials a month takes home the equivalent of $116.

At stake is the flow of roughly 20% of global crude through the Strait of Hormuz, where Iran has already halted three oil tankers and proposed a unilateral transit arrangement with Oman. The US has warned of further strikes on Iranian infrastructure if no nuclear deal is reached, with President Donald Trump saying he would target Iran's tunnel network at Kuh-e Kolang if negotiations fail. The last time the US conducted sustained strikes on Iranian energy infrastructure, Brent crude rose more than 15% over a six-week period.

Sanctions Enforcement Intensifies

The Treasury's action broadens a campaign that has already reduced Iran's official oil export revenue significantly. The IRGC has filled the gap through smuggling operations that yield 200% to 300% profit margins, according to reports from the Tasnim News Agency. The IRGC-affiliated engineering firm Khatam al-Anbiya holds tens of billions of dollars in annual government contracts across agriculture, energy, mining, and transportation sectors.

The Setad, a state-linked economic conglomerate answering only to the Supreme Leader, controls real estate holdings worth more than $50 billion and corporate assets of $43 billion, per a 2013 Reuters investigation. The organization pays no taxes and faces no parliamentary oversight, insulating Iran's leadership from the economic consequences of sanctions. The former Supreme Leader's personal wealth was estimated between $100 billion and $200 billion, exceeding Iran's annual oil export earnings.

Supply Risks Mount Across the Region

The Houthi militia in Yemen, an Iran-aligned group, is considering imposing transit fees on commercial vessels passing through the Bab al-Mandab strait, according to people familiar with the matter. Such a move would add costs to one of the world's busiest shipping lanes, which connects the Red Sea to the Indian Ocean.

Iraqi Prime Minister Ali al-Saidi canceled a planned meeting with Saudi Crown Prince Mohammed bin Salman after pro-Iranian militias in Iraq launched drone attacks on Saudi oil facilities, three people familiar with the matter told Reuters. Saudi Arabia said it had shot down drones targeting oil installations in the eastern part of the kingdom for a second consecutive day.

The escalation follows the US military's "Operation Epic Fury" campaign against Iran, which the Pentagon has linked to four US service member fatalities and dozens of injuries. Iran has proposed keeping the Strait of Hormuz's southbound route entirely within Iranian waters while partially opening the northbound route, a plan Oman has rejected, according to Iranian state television. The standoff leaves global oil markets pricing in a sustained risk premium, with the potential for further supply disruptions if diplomatic talks fail to produce a nuclear agreement.

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