Iran announced it targeted three oil tankers using an unauthorized route through the Strait of Hormuz, along with other US-linked vessels, in response to American attacks on Iranian tankers over the weekend. The Islamic Revolutionary Guard Corps Navy (IRGC) did not provide further details but later claimed to have attacked a US naval drone and an American military unmanned surface vessel attempting to enter the strait. This escalation follows US military strikes that destroyed one Iranian crude tanker, the Suezmax-sized Kylo, and disabled two others, the Suezmax Stark I and the very large crude carrier Downy.
The conflict has severely impacted oil flows through the Strait of Hormuz, with TankerTrackers data indicating a 60% reduction from pre-war levels, averaging 6.7 million barrels per day (bpd). This represents an effective throughput loss of approximately 9-10 million bpd. The ongoing disruption has led to a significant risk premium for crude benchmarks, with analysts like Jorge Leon of Rystad Energy noting that the impact is structural and could last for weeks or months, even with partial de-escalation.
Despite the escalating conflict and reduced oil exports from the Persian Gulf, OPEC+ decided to keep October oil production quotas unchanged. A sub-group led by Saudi Arabia and Russia confirmed the steady targets, aligning with their roadmap to maintain flat targets until the end of the year. The group's focus is now shifting towards an audit of members' physical production capacity for calculating 2027 limits, a process that is expected to be politically sensitive given the current geopolitical landscape and the deterioration of some members' production capabilities due to the war.
The broader impact includes a bullish trend for Brent and Dubai benchmarks, increased freight rates for Persian Gulf-Asia VLCCs and LNG, and higher insurance costs due to war-risk premiums. Chinese refiners are reportedly paying double premiums for Russian ESPO crude as Iranian oil supply has dried up due to the US blockade, and shipments from other Persian Gulf producers remain well below normal. US President Donald Trump's handling of the situation has drawn criticism, with energy prices spiking and potentially impacting upcoming midterm elections.
