The Ships Crossing Hormuz Are Using Tehran’s Route, and Washington’s Oil Waiver Lapses in Seven Days
Both governments spent Thursday asserting control of the same water. The only dated, falsifiable item in the file is a US Treasury waiver on Iranian-origin crude that runs out on 21 August, and nobody in Washington has said whether it will be renewed. Meanwhile the traffic evidence, thin as it is, points one way: the vessels still moving are largely using the route Iran authorises and the United States tells them to avoid. Everything else in the strait is a claim by a belligerent.
The hardest date on this desk is not a battlefield one. In June the US Treasury waived all existing US sanctions on the production, delivery and sale of crude, petrochemical and petroleum products of Iranian origin “through August 21, 2026,” and permitted US import of Iranian-origin crude and products for domestic use — the text as carried in CBS News’s live file on the negotiations. That waiver expires in seven days. No reporting reached this desk on whether it will be renewed, allowed to lapse, or replaced. It sits alongside a US naval blockade of Iranian ports that CNN reported was reinstated on 12 August after Tehran declared the strait closed again, accusing Washington of violating the June memorandum of understanding by opening a new shipping route. A government that is simultaneously interdicting Iranian ports and licensing the import of Iranian crude has, in the waiver’s renewal or lapse, the cleanest signal available about which of those two policies it now believes in. Silence past 21 August would itself be a decision, and a priced one.
On the water, the numbers are small and they do not agree. Lloyd’s List Intelligence’s Strait of Hormuz brief of 12 August counted 45 transits in 3–9 August, down from 63 the previous week, against 33 in the week of 13–19 July; its 5 August brief gave 84 for 27 July–2 August, a figure that cannot be reconciled with the later 63 without knowing how the weeks are defined. LLI’s own caveat matters more than the arithmetic: extensive dark activity makes total traffic impossible to quantify, so every count is a floor. Reuters vessel-tracking data reported by CBS News put a single day at eight transits, a one-week low, against a pre-war baseline of roughly 130 ships a day; Semafor put the same period at six. Against all of this, Trump said on 11 August that the United States has “total control over the Hormuz Strait” — “We own it,” per Bloomberg — and described the blockade on Truth Social as a “WALL OF STEEL.” The US claims as much as 9 million barrels a day is transiting, a figure carried in Trading Economics market commentary and verified nowhere.
The detail that settles more than either statement ran inside CNN’s 12 August live file: despite repeated claims that the US controls the strait, most vessels used the Iranian-approved route that Washington has warned ships against taking. That is commercial risk management, not politics, and it is consistent with LLI’s finding that attacks and attempted attacks are concentrated along the Omani coast, where ships avoid Iran’s traffic system. On Thursday evening ADNOC said two ships were attacked while transiting Hormuz — reported on the UAE state news agency WAM and picked up by NewsNation, with no vessel names, flags or positions, and no attribution of responsibility. Prices went the other way: Brent fell below $88 on Thursday, ending a six-session rally, after the IEA cut its demand outlook and OPEC lowered its 2026 growth forecast to 580,000 bpd, a fourth consecutive downward revision. The US Strategic Petroleum Reserve is below 300 million barrels, the lowest since January 1983. Both governments have now made compensation a precondition for reopening; neither has published a number, a mechanism or a mediator.
Assessment: Two things are being confused in the coverage of this strait: who can deny passage, and who can guarantee it. Iran has demonstrated the first for five months. Nobody has demonstrated the second, which is why the traffic that moves buys Iranian permission rather than American assurance. Distrust the transit counts in both directions — LLI’s are floors by their own admission, the IRGC’s daily permitted-vessel tallies are a propaganda series rather than a dataset, and the 9-million-barrel claim has no publisher behind it. Distrust the ADNOC report until UKMTO, Ambrey or Lloyd’s List names a hull; a state oil company publicising insecurity on its own export route is a positioning signal as much as an incident report. And distrust the $500m-a-day cost-to-Iran and 85-interceptions figures circulating through aggregators: those are US government claims about the effectiveness of US policy. What to check next week is narrow and checkable. The waiver either renews or it does not.