Brent settled at $109.26 on Friday, a gain of 7.84 percent on the week. WTI settled at $105.42, up 10.48 percent. Roughly three to four percentage points of the weekly move came on Friday alone, as Iran seized a tanker off Fujairah, an Indian-flagged cargo ship sank near the Omani coast, President Trump told reporters he was "losing patience with Iran," and Iranian Foreign Minister Abbas Araqchi said Tehran was "ready to repel" any new U.S. attack. This is the largest weekly oil gain since the Iran war began. [1][2][3]

The paper's May 15 brief said Brent has a headline tape and an IEA October clock, distinguishing the daily summit-volatility prints from the IEA Oil Market Report's calendar showing the market remains severely undersupplied even if Hormuz reopens gradually from June. Saturday's print is the day the two clocks converged into a single number. The headline tape and the supply math were doing different work last week. This week they are doing the same work, and the work is to price a strait that lacks a publicly visible enforcement mechanism.

Hormuz traffic continues to run between 10 and 30 vessels per day, against a pre-war baseline of roughly 140. The Kpler estimate and the IRGC's own public statements converge on the same range. [4] The throughput is the operational fact. About one in five to one in fourteen of pre-war traffic is moving. The market is pricing the consequence, not the rhetoric.

Three Friday events compounded inside one trading session. The first was the Fujairah seizure, reported through UKMTO and confirmed by AP. The second was the Indian-flagged sinking near Oman, reported by PBS NewsHour. [5] The third was the Air Force One readout — Trump's "losing patience" and "did not ask Xi for favors" — that recast the summit from a bilateral mechanism to a one-sided demand. [6] Energy traders priced all three. Brent's Friday move alone accounted for roughly half of the weekly gain.

The Business Times Singapore desk read the move as inflation risk. Gulf News read it as supply premium. Dawn read it as Iran combat fears. [1][2][7] Each framing is partially correct. None braids the four Friday events into a single causal chain. The chain is unambiguous: the summit produced no Hormuz enforcement mechanism; the seizures resumed; the president signaled the diplomatic track was closing; the foreign minister of the counterparty confirmed the same. The market priced what the trifecta implied — that the next six months of Hormuz transit will continue to depend on Iranian discretion, and that no publicly visible instrument exists to constrain that discretion.

The 10-year Treasury yield touched its highest level since May 2025 in the same session. [1] The bond market is reading the same energy-inflation premium the equity market is reading. CME FedWatch shifted to pricing a December rate hike at 40 percent, up from 13.6 percent a week ago. Top economic forecasters now project Q2 CPI at 6 percent. [8] The transmission from a tanker off Fujairah to a Treasury yield in New York is now a single chain that Friday made visible across asset classes.

The IEA October calendar matters more for being shorter. The Oil Market Report has held the view that the market remains undersupplied through Q3 even on the most optimistic Hormuz reopening assumptions. The Friday tape is the market endorsing that view: the absence of an enforcement instrument from the summit means the optimistic case has gotten less optimistic. October is no longer a watch item. It is the market's working assumption.

The Strategic Petroleum Reserve has been at the center of policy speculation for months. The Treasury has not authorized a public release-rate announcement in the past 48 hours. The SPR's end-week level has not been disclosed in a public release. If a release is forthcoming, the timing of the announcement relative to the June FOMC will be the next signal. A pre-FOMC release would suggest the administration is willing to use the SPR to dampen the inflation premium the market is now pricing into the December hike odds. A post-FOMC release would suggest the SPR is being held for a Q3 deployment.

Insurance-premium step-ups on Hormuz transit are the other measurable instrument. Lloyd's of London and the Joint Cargo Committee's hull-and-war classifications publish updated rates after major incidents. The Friday seizures will trigger a re-review. Whether the re-review produces a documented step-up — and whether the step-up is visible in the chartering market by the start of the working week — is the test of how directly insurers are pricing the selective-enforcement ledger the paper documented on Saturday's second-position major.

The China-vessel proportion of the 10-30/day Hormuz transit baseline is the structural data the public record has not disclosed. The PortNews architecture document published the PGSA permission regime in detail but did not publish operational vessel counts by flag. [9] If a substantial share of current Hormuz throughput consists of Chinese-flagged or Chinese-sponsored vessels, the strait's operating economics are now organized around Iranian-sponsored Chinese passage. If the share is smaller, the throughput is more diversified than the protocol's selective-enforcement record would suggest. The disclosure is not in the public record.

The Saturday read is therefore the convergence read. The market has stopped trading the summit headline tape and the IEA calendar as two clocks. It has begun trading them as one number. The number is $109. The number will move with the next entry to the Iranian seizure ledger, with any public mechanism the State Department produces between now and the June 2-3 political talks, and with the SPR posture the Treasury chooses for the June FOMC window.

The May 15 brief said the two clocks were running on the same desk. Friday's settle is the day the desk reported them as a single time. The IEA October date is no longer something to watch. It is the market's baseline assumption for the rest of the year.

-- DARA OSEI, London