Daily Strike — Morning Edition

In the twelve hours since last night’s briefing, the deal track that markets had begun to price collapsed back into open exchanges of fire. US forces struck a military site near Bandar Abbas and shot down four Iranian attack drones in the same engagement, per BBC. The IRGC announced a retaliatory attack on a base used by US forces, per Middle East Eye. Treasury added the Persian Gulf Strait Authority — Tehran’s Hormuz fee-collection entity — to the Iran sanctions list, per Middle East Eye, and the President separately said he will not ease sanctions on Iran as part of any deal, also per Middle East Eye. In Hormuz itself, Iranian forces fired at four commercial vessels attempting to transit the strait, per Middle East Eye, even as three oil tankers and two gas carriers cleared the chokepoint en route to China, per OilPrice.

OFAC designation and the no-sanctions-relief line

Treasury’s Office of Foreign Assets Control issued new Iran-related designations targeting the Persian Gulf Strait Authority, the body Tehran created to administer transit fees in Hormuz, per Middle East Eye. The designation is the first US measure that treats the IRGC permission regime described in last night’s briefing as a sanctionable institution rather than a diplomatic posture. Any non-US financial institution that processes a Hormuz transit-fee payment to the Authority is now exposed to secondary-sanctions risk — which, in practice, is how Washington forces flag states and shippers to choose a side.

The designation lands on the same day the President told reporters he will not ease sanctions on Iran as part of any deal, per Middle East Eye. The two moves should be read as a single diplomatic signal: rather than relaxing the existing pressure architecture, the administration is extending it to cover the new Iranian institution built around Hormuz. That is incompatible with the draft framework Iranian negotiators described yesterday, which assumed sanctions relief in exchange for reopening the strait. Trump separately warned that he may have to “finish the job,” per The Guardian, language that closes rather than opens the political space for compromise.

Bandar Abbas, the IRGC counter-strike, and fire on Hormuz traffic

The US military struck a military site near Bandar Abbas overnight and said it shot down four Iranian attack drones in the same engagement, per BBC. Bandar Abbas is the home port of much of Iran’s southern naval order of battle and the logistical anchor of the IRGC Navy’s Hormuz operations; striking there is a step up from the standoff posture of the prior week. The Pentagon has not publicly identified the specific facility hit.

The IRGC announced within hours that it had attacked a base used by US forces in retaliation, per Middle East Eye. The IRGC statement did not name the installation and the Department of Defense has not yet publicly confirmed a strike on US personnel or matériel. Whether the IRGC claim describes a successful kinetic event or a posture statement is the most consequential open question of the morning.

Separately, Iranian forces fired at four commercial vessels attempting to cross the Strait of Hormuz, per Middle East Eye. It is the most direct interference with merchant traffic recorded since the partial blockade began and operationalizes the “hostile country” exclusion the IRGC announced yesterday. Insurance underwriters who had been pricing a single Hormuz war-risk premium will now have to price live fire on flagged commercial hulls.

Markets

Brent and WTI both climbed in early Asian trade after the reports of fresh US strikes, per BBC, reversing the deal-trade that had pulled crude lower through yesterday’s session. MarketWatch reported the same directional move and noted that equity desks had been positioning for a near-term US–Iran agreement, per MarketWatch. The unwind is the more important signal than the level: it shows that the tape was carrying a deal premium that the overnight strikes have stripped out.

We do not have reliable session-close numbers in cache and will not invent any. The directional read above is sourced. The front-month/December Brent spread is the cleaner instrument to watch into the US open — a widening contango collapse would indicate the tape is pricing sustained supply disruption rather than a one-news-cycle event.

Secondary fronts

Oman threat and Iranian solidarity. The President publicly threatened Oman with military action if it cooperated with Iran’s Hormuz transit-fee regime, per Middle East Eye. Iranian Foreign Ministry spokesperson Esmaeil Baghaei condemned the strike near Bandar Abbas and publicly stood with Oman against the threat, per Middle East Eye. Tehran is using the Oman threat to pull a Gulf Cooperation Council state rhetorically closer to its position — the inversion of the diplomatic alignment Washington has spent two decades building.

Mixed Hormuz transit evidence. Even as Iranian forces fired on four vessels, three oil tankers and two LNG carriers cleared Hormuz this week en route to China, per OilPrice. The strait is functioning as a split-authority channel: some flag states pass, others are fired on. That is precisely the permission regime the IRGC described yesterday, now visible in the transit data.

What to watch today

1. Any update to the OFAC Iran sanctions designation list at treasury.gov identifying additional entities tied to the Persian Gulf Strait Authority — secondary designations would extend the secondary-sanctions perimeter to specific banks and shippers.
2. The CENTCOM redirection counter — whether the number of ships rerouted since the partial blockade began moves materially above yesterday’s reported 109, which would indicate that the live-fire incident has tipped more carriers into avoidance.
3. Whether the IRGC publicly identifies which US base it claims to have struck, and any Department of Defense response confirming or denying the claim.

What we’re tracking but haven’t published on yet

• Fallout from the Trump–Xi summit and any Chinese response to the OFAC designation, given Beijing remains the principal buyer of the tankers that cleared Hormuz this week.
• The Foreign Affairs analysis on the administration’s strategic options in Iran, which is circulating among Senate staff and is likely to shape this week’s hearing posture.
• Hezbollah’s response timeline on the Lebanon front, which continues to move independently of the Doha track and could complicate any return to negotiations.

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— The America Strikes desk