Oil prices surged, with Brent crude climbing above $82 per barrel and West Texas Intermediate (WTI) surpassing $77 per barrel, after President Donald Trump declared the US would resume its blockade on Iran. The President’s announcement on social media stated that the US would be "reimbursed" for helping ships transit the Strait of Hormuz at a rate of 20% on all cargo shipped. This move pushed Brent crude prices to their highest since June 15 and marked its largest single-day jump since May 2020. The International Maritime Organization (IMO) and major energy companies like Chevron CEO Mike Wirth immediately rejected the reimbursement idea, citing established principles of freedom of navigation and a lack of legal basis for such transit fees.
The Blockade, announced to start at 4 p.m. ET on Tuesday by U.S. Central Command, targets vessels transiting to or from Iranian ports and coastal areas. This escalation follows weekend attacks on commercial shipping and the Iranian military hitting multiple commercial vessels. Even before Trump's Monday announcement, traffic in the strait had plunged 52% week over week, according to MarineTraffic by Kpler. The firm estimated that 19 ships transited on Friday, 24 on Saturday, and 14 on Sunday, indicating growing caution among shippers. This renewed uncertainty over a critical waterway, where 20% of the world's energy supplies typically pass, has reinserted a war premium into crude prices.
The surge in oil prices has also halted declines in U.S. gasoline prices, with analyst Patrick De Haan from GasBuddy predicting the national average to reach $4 per gallon within 7-10 days. The US Treasury Department has warned that paying Iran for passage through the Strait of Hormuz could lead to sanctions violations, labeling it "maritime extortion." However, Iranian Foreign Minister Abbas Araghchi appeared to endorse the concept, though he stated 20% was "too much." The uncertainty has led marine insurance markets to remain cautious, raising war-risk insurance premiums and potentially increasing transportation costs.
In response to the escalating tensions, stock markets also saw declines. The S&P 500 closed down 0.8%, the Dow ended lower by 138 points, and the Nasdaq, particularly affected by tumbling tech stocks, fell 1.6%. The economic ramifications extend beyond oil, as diesel, jet fuel, and gasoline prices have all strengthened, anticipating higher transportation costs and potential delays in product shipments from the Middle East. Saul Kavonic, a senior energy analyst, warned that if the conflict expands to target key facilities more broadly, oil prices could reach $100 per barrel, further threatening global efforts to rebuild inventories.