Iran-Oman Hormuz Deal Optimism Collides With Divergent Flow Data and a U.S. Governance Veto
Traders pricing in smoother Hormuz transit may be underestimating both the physical reality and what a deal would actually institutionalize.
ICE Brent crude front-month traded at $98.72 per barrel as of Tuesday (2026-09-08), a day after rising 0.63% in early Asian trade on Monday (2026-09-07) to $96.89 following news that U.S. Central Command had struck three Iranian tankers on Saturday (2026-09-05) and Tehran had vowed to retaliate.5
Market attention has since shifted to a separate thread: Iran said on Monday (2026-09-07) that a deal with Oman to manage shipping through the Strait of Hormuz is days away, with the two countries in the final stages of negotiations over what Tehran described as a temporary safe route through the waterway. Some traders read that as a path to more commercial vessels clearing the chokepoint.6
But the physical data do not support a throughput recovery story anywhere near official claims. TankerTrackers.com estimated that oil flows via the Strait averaged roughly 5.04 million barrels per day over the most recent 28-day period — well below the more than 9 million bpd that U.S. Energy Secretary Chris Wright claimed were being exported via water routes over the same stretch. Both figures were published Monday (2026-09-07), and the gap between them is large enough to make any trade premised on imminent normalization difficult to sustain.5
That gap has a precedent. When Iran's foreign minister declared in April that commercial passage through Hormuz was "completely open," traders pushed ICE Brent front-month futures down more than 10% to $89 a barrel on the assumption that roughly one-fifth of the world's daily oil supply was about to return to market. The physical reality lagged the headline, as it has repeatedly since the strait's effective closure.1
The governance architecture of any Iran-Oman deal adds a structural complication that markets appear to be discounting. The U.S. Treasury Department sanctioned Iran's Persian Gulf Strait Authority over charges that it was extorting shipowners — in some cases demanding up to $2 million per vessel for safe passage — and described the scheme as a new attempt to monetize what it called a campaign of state-sponsored terror.2 The memorandum of understanding that Washington and Tehran signed on Wednesday (2026-06-17) was supposed to address the waterway's status. Analysts said at the time that it appeared instead to cement Tehran's long-term institutional control of the strait, leaving the door open for fee-charging to continue — a reading the Trump administration did not directly rebut, according to reporting by E&E News.3
A bilateral Iran-Oman arrangement designating a temporary safe route does not obviously resolve that underlying question. The U.S. has made clear it will not accept Iran exercising a veto over which ships may transit, which means a deal between Tehran and Muscat could quickly run into direct conflict with Washington's stated position. Naysan Rafati, Iran senior analyst at the International Crisis Group, captured the ambiguity plainly when the June agreement was signed: "There is an element of proof of concept in all of this. The first test is at sea. Does traffic in Hormuz start to creep up?"4
The weekend strikes make that first test harder to parse. U.S. Central Command hitting Iranian tankers on Saturday (2026-09-05) while diplomatic channels simultaneously advertised an imminent Iran-Oman deal suggests the military and diplomatic tracks are not coordinated toward the same outcome. The VIX climbed 5.37% to 15.30 as of Tuesday (2026-09-08), indicating at least incremental hedging of tail risk across asset classes.5
Still, some traders appear willing to front-run deal optimism, betting any formal mechanism is better than the status quo. That position requires flows to recover meaningfully toward the 9 million bpd figure Wright cited, rather than remain anchored near the 5 million bpd that tanker trackers observed. If the gap between those two numbers does not close in the weeks after a deal is announced — assuming one is announced — the case for Hormuz normalization weakens considerably.5
The more durable signal to track is whether major international shipping companies, most of whom have been routing around the strait since the effective closure, resume regular bookings following any deal. Washington's unresolved position on Iranian governance of the waterway, combined with outstanding negotiations over $24 billion in frozen Iranian assets, means a signed Iran-Oman agreement may leave the commercial and legal risk for shipowners largely intact. Fees and physical passage risk are what closed Hormuz to mainstream traffic; a framework that leaves both ambiguous solves less than the headline suggests.2,6