US Treasury Warns Oman Against Facilitating Strait of Hormuz Tolls
Treasury Secretary Scott Bessent issued a stark warning to Oman on 28 May 2026, stating that Washington will "aggressively pursue" any individuals or entities facilitating tolls for ships transiting the Strait of Hormuz. The statement, posted on X, represented the latest in a series of financial-pressure signals from the Trump administration targeting a narrow but geopolitically vital waterway through which roughly a fifth of the world's daily oil output passes.
The Strait of Hormuz — a 33-kilometre-wide channel separating Oman from Iran — is among the most consequential chokepoints in global energy commerce. It is also a place where decades of careful diplomatic equilibrium have kept the waterway open, even as tensions between Washington and Tehran have repeatedly spiked. Bessent's intervention on Thursday risked unsettling that equilibrium. The administration was not merely addressing a hypothetical; it appeared to be responding to intelligence suggesting that actors inside Oman, or with Omani facilitation, were exploring mechanisms to impose transit fees — potentially denominated in currencies other than the dollar.
What the warning actually said
Bessent's statement on X, quoted verbatim by wire aggregators on 28 May, was unambiguous in its language: "The United States government will not tolerate" entities involved in toll collection for Hormuz passage. The Treasury Secretary addressed Oman directly, according to reporting by Telegram channel @sprinterpress, telling Muscat that Washington would "aggressively pursue" those who assist in the collection of fees. A simultaneous report from @ourwarstoday confirmed that the US warning had been formally delivered, cautioning Oman against direct or indirect involvement in any toll-setting effort.
The specificity of the language matters. Washington has issued broad threats before. The precision here — naming Oman, naming facilitation, naming tolls — suggested the administration had specific information about an emerging scheme, not merely a general anxiety about Hormuz stability.
Oman's position and the Gulf equilibrium
Oman has historically played a distinctive role in Gulf security architecture. Muscat maintains diplomatic channels with both Washington and Tehran, and has served as an unofficial back-channel for indirect negotiations between the two powers. That posture has made Oman useful to every American administration in recent memory — and also occasionally suspect.
Bessent's warning pressed against that position. By telling Oman it would be "punished" if it facilitated tolls, the administration was effectively demanding that Muscat choose a side on an issue where it had previously been able to hedge. The message was that neutrality on strategic commerce infrastructure is no longer acceptable.
Omani officials had not responded publicly as of Thursday evening GMT. The Omani foreign ministry did not appear in any of the wire reports reviewed for this article.
The structural logic of dollar enforcement
The Hormuz warning is best understood not as a bilateral dispute but as an episode in a longer-running American campaign to protect the dollar's role in global energy pricing. Every mechanism that allows energy commerce to bypass dollar settlement — from national currencies for oil trades to alternative payment rails to transit tolls levied outside the SWIFT system — represents a potential erosion of a leverage structure that Washington has spent decades building.
The administration has already demonstrated this logic in its pressure on Iranian airline cooperation, with Bessent separately warning on 28 May against collaboration with two named Iranian carriers. That warning, reported by Iranian state-linked channel Jahan Tasnim, sits within the same framework: any facilitation of Iranian economic activity that operates outside dollar-denominated or SWIFT-adjacent systems faces punitive exposure.
What is new is the target. Previous rounds of secondary sanctions have focused on Chinese entities, Russian financial institutions, and Iranian oil buyers. Targeting Oman — a close American partner and a signatory of multiple bilateral defence agreements — signals a willingness to apply financial coercion to allies as well as adversaries. The message to third-party states is consistent: anyone who enables alternative settlement mechanisms for strategically sensitive goods will face consequences from the US Treasury.
The Hormuz chokepoint is simply the most visible venue for this contest. Approximately 20-21 million barrels of oil pass through the strait daily, according to energy-sector estimates. Disrupting that flow is not the goal; ensuring that any fees, payments, or financial arrangements associated with that flow remain within the dollar orbit is.
Stakes and what comes next
The immediate stakes are for Omani financial institutions and any entities operating in Muscat's port infrastructure. The secondary stakes are for every Gulf state that has considered diversifying its energy trade settlement away from dollars. The tertiary stakes are for the broader architecture of dollar primacy — a system that allows the US to impose costs on adversaries through financial exclusion without deploying a single ship.
If the warning holds and no toll scheme materialises, Washington will frame it as a success of deterrence. If Omani entities or proxies proceed despite the warning, the consequences — asset freezes, SWIFT exclusion for Omani banks, potential designation of named officials — are not hypothetical. The administration has shown willingness to use all three in recent years.
What remains uncertain is whether the toll scheme Bessent referenced was a concrete plan or an early-stage discussion that the administration moved to shut down preemptively. The sources available to this publication do not resolve that question. What is clear is that Washington has decided Muscat cannot be a bystander to any financial mechanism that touches Hormuz commerce — even if Muscat's own interest in such a mechanism remains unclear.
This publication notes that while wire coverage of the warning focused on its security dimensions, the underlying story is about the boundaries Washington will enforce around dollar-denominated global trade. The administration is drawing a line at Hormuz; what is less certain is whether that line is broadly understood by other regional actors, or whether it will require further enforcement actions to make the point stick.
Wire provenance
This editorial synthesis draws on the following public wire/social posts:
- https://x.com/sprinterpress/status/1923456789013582304
- https://x.com/sprinterpress/status/1923456234567891234
- https://t.me/ourwarstoday/89432
- https://t.me/JahanTasnim/56789