For two weeks the oil market has traded the question of when Iran and Oman sign. This week both governments answered a different question, and the answer was the same on each side: this does not have an end date.
Brent rose as high as $88.64 early Friday, up about 1.8%, then gave most of it back. By late morning Eastern it was $87.31, up 0.28%, with WTI at $81.23, effectively flat. Both are still up around 4% on the week.
That fade is now the pattern. It is the third time in five sessions that an escalation headline has moved the price and been sold into by midday.
The Blockade Became Open-Ended
Defense Secretary Pete Hegseth was asked how long the United States could sustain its naval blockade of Iranian ports. His answer removed the time limit.
"Indefinitely the United States Navy can maintain a blockade like that," he said, "because we'll rotate ships in and out, as we have, and we'll continue to."
The USS George Washington is heading to the region, which the Pentagon describes as a previously scheduled rotation. Whether or not that is routine, it is consistent with the sentence.
Treasury Secretary Scott Bessent went further on the financial side, telling Newsmax that Washington intends to "apply measures like have never been seen in the history of economic isolation on a country," and that announcements are coming next week.
Note what neither man offered. No deadline, no condition, no description of what Iran would have to do for the blockade to lift. Trump spent the first week of August attaching dates to this and letting them lapse. The administration has now stopped attaching dates at all.
Iran Answered With the Same Structure
Tehran's language moved the same way, toward permanence rather than resolution.
Supreme Leader Mojtaba Khamenei's decree appointing Ahmad Vahidi as commander-in-chief of the Revolutionary Guard instructs him to build the force for "maximum deterrence" and maintain readiness for "powerful offensive operations against the enemy." Mohammad Mokhber described the strategy as shifting the war to an offensive posture if Iran's conditions are not met.
And the man now running Iran's Supreme National Security Council has said the thing that matters most for the price.
A Correction: Rezaei Did Speak, and We Said He Had Not
We have to fix something before going further.
On Wednesday and again on Thursday we told you that Mohsen Rezaei had not spoken publicly since taking over the security council, and we described his first statement as the most informative thing that could happen this week. He had in fact spoken on 11 August. Both of those lines were wrong, and we repeated the error two days running after flagging the question ourselves.
What he said matters more than our having missed it. Rezaei said the strait will not reopen until Iran's conditions are met, and that any agreement with Oman is separate from the broader closure.
That is the security council secretary, the man whose approval any deal requires, saying explicitly that the deal is not the thing that opens the waterway. It is the same position the Revolutionary Guard took on 8 August and the same position the foreign ministry has taken since the coordinates were announced. Three arms of the Iranian state have now said it, and the most senior of them said it three days ago while we were reporting that he had said nothing.
The market has spent this week pricing an Oman agreement as the route to reopening. Iran's own security chief has been on the record for three days saying it is not.
Saudi Arabia's Coalition Stopped Being Empty
On 5 August we reported that the maritime coalition Saudi Arabia proposed on 30 July had attracted no announced members. That is no longer true, and the change is substantial.
The Saudi defence ministry announced on Thursday that 15 countries have signed a declaration establishing the alliance, of which 13 have formally joined so far. The named signatories are Bahrain, Bangladesh, the Comoros, Djibouti, Egypt, Jordan, Kuwait, Pakistan, Qatar, Saudi Arabia, Somalia, Sudan, Turkey and Yemen.
The institutional detail is the part that suggests this is real rather than announced. A Saudi commander has been appointed, and Pakistan will supply the deputy commander for the first term.
The mandate covers Bab al-Mandeb, the Red Sea and the Gulf of Aden. It does not cover Hormuz. That distinction matters: this is a coalition for the second chokepoint, the one Saudi Arabia has been using to route around the first, and it exists because that workaround came under attack.
Hold one caution. Fifteen signed and thirteen joined are different numbers describing different things, and coalition membership is not capability. What it does establish is that the Gulf states are now building institutions around the assumption that this lasts.
The Refinery That Keeps Getting Hit
The Houthis claim to have struck Saudi Aramco's Jazan refinery with a drone, the second such claim in under a week.
The same caution applies as last Sunday, and it is the fourth item on our reference page on oil data traps. Jazan's 400,000 barrels a day is nameplate capacity. The plant shut in late July and there is no confirmation it has restarted, so a strike on it is not 400,000 barrels a day of lost supply. Anyone attaching that number to this headline is quoting a property of the facility rather than a measurement of anything that happened.
Aramco's Allocations Still Have Not Landed, and the Trap Fired Again
Saudi Aramco's September allocations to Asian refiners are now around four days overdue. They remain the hardest available signal of what refiners actually expect, because Aramco asked buyers to nominate both from Ras Tanura inside the strait and from Yanbu or Sidi Kerir outside it. The split is a decision made with money rather than in a press statement.
They have not been published.
We are stating that flatly because while checking, a search engine served us a piece headlined that Aramco would supply full September volumes to Asia. It is from August 2023. Its own body refers to the kingdom's extended voluntary output cut, which dates it immediately.
We flagged that exact article as a trap in Wednesday's piece. Two days later it was returned to us as current. That is the second time this week a summarizer has handed us a stale Aramco story, and it is why the allocation section of this article says nothing rather than something.
What to Watch
Bessent's promised announcements next week. He has described them as unprecedented, which is a large claim from a Treasury secretary and a checkable one.
Whether the Oman text ever appears, and whether anyone in Tehran contradicts Rezaei. As of today the foreign ministry, the Revolutionary Guard and the security council are aligned that the agreement and the closure are separate questions.
Baker Hughes publishes the US rig count at 1pm Eastern, after this goes up. Last week was 588 total with oil at 454.
And the Aramco allocations, whenever they come. If Asian refiners loaded heavily from Yanbu and Sidi Kerir, that is the market pricing a long closure with its own freight budget, which would be a stronger signal than anything said this week in Washington or Tehran.
This article is for informational purposes only and does not constitute financial or investment advice. Oil market conditions can change rapidly. Consult a qualified financial professional before making investment decisions.