Key Highlights

  • Crude Oil climbed above $85 a barrel, extending its monthly advance to more than 20 percent.
  • Iran's Revolutionary Guards reportedly stopped two tankers from passing through the Strait of Hormuz.
  • Two very large crude carriers still successfully exited the Strait on Friday, according to Kpler ship-tracking data.
  • A Ukrainian strike on Russia's Volgograd oil refinery added to broader Supply concerns.

Renewed Hostilities Drive a Sharp Monthly Advance

Crude oil climbed above $85 a barrel on Friday, extending its monthly advance to more than 20 percent amid renewed hostilities between the US and Iran and reports that some tankers were forced to turn around in the Strait of Hormuz. According to Iran's Fars news agency, the Revolutionary Guards stopped two tankers from passing through the waterway, while four others altered course, signaling a direct escalation in interference with commercial shipping through the critical corridor.

Even so, Kpler ship-tracking data showed that two very large crude carriers loaded in the Gulf successfully exited the Strait on Friday, suggesting that while disruption risk has clearly risen, the waterway has not been entirely closed to traffic. This nuance highlights the difference between elevated risk premium being priced into oil markets and an actual full blockade of Gulf shipping.

A Widening Conflict Draws in Additional Regional Actors

The conflict has intensified this month as a temporary pause in fighting between Washington and Tehran collapsed, Yemen's Houthis became more involved, and Saudi forces joined US operations against Iran-backed groups in Iraq. This widening of the conflict beyond the original US-Iran confrontation introduces additional actors and fronts that could complicate any future de-escalation efforts.

Separately, declining US crude inventories and a Ukrainian strike on Russia's Volgograd oil refinery added to concerns over global supply, layering additional bullish factors onto the geopolitical risk premium already embedded in prices. The combination of a widening Middle East conflict, reduced US stockpiles, and continued attacks on Russian refining infrastructure has created a multi-front set of supply concerns supporting the recent price advance.

Balancing Full Blockade Risk Against Continued Partial Shipping Flows

Crude oil's near term trajectory will likely depend on whether Iran's interference with tanker traffic escalates toward a more comprehensive blockade of the Strait of Hormuz, or whether the current pattern of selective interdiction alongside continued successful transits, as evidenced by the two VLCCs that exited Friday, persists. A shift toward more comprehensive disruption could push prices meaningfully higher given the strait's outsized role in global oil shipping.

Conversely, should diplomatic efforts eventually de-escalate the conflict despite this month's intensification, the substantial risk premium currently embedded in prices could unwind relatively quickly. The involvement of additional parties, including the Houthis and Saudi forces, adds complexity that could make a swift resolution less likely than if the conflict remained contained to its original two main parties.

Conclusion

Crude oil's advance above $85 a barrel and more than 20 percent monthly gain reflect a Middle East conflict that has both intensified and widened over the course of the month, directly threatening shipping through the Strait of Hormuz. Whether prices extend their climb may depend on how Iran's tanker interference evolves and whether the involvement of additional regional actors like the Houthis and Saudi forces leads to further escalation or eventually prompts renewed diplomatic engagement. Continued monitoring of ship-tracking data will remain important for gauging the actual, as opposed to threatened, level of disruption to Gulf oil shipping.