• More than 17 million barrels of oil moved through the Strait of Hormuz on Monday, the highest single-day volume since the Iran conflict curtailed traffic, according to U.S. Energy Secretary Chris Wright.
  • The rebound, however, is fragile: tanker traffic fell the next day and two Saudi-oil supertankers were reportedly struck near Oman, underscoring persistent security risks.
  • Analysts caution that daily figures are volatile and a single strong day does not signal a return to normalcy, as flows remain well below pre-conflict levels.

A Fragile Recovery in the World's Key Oil Chokepoint

U.S. Energy Secretary Chris Wright said Tuesday that more than 17 million barrels of oil transited the Strait of Hormuz on Monday, calling it the highest single-day volume since the conflict with Iran sharply reduced flows. Speaking from Venezuela, Wright framed the data as evidence that efforts to restore energy shipments are gaining traction, according to a CNBC interview.

The headline number, if accurate, would mark a significant rebound from the depths of the crisis, when flows through the strait—a conduit for about a fifth of global oil consumption—plummeted to as low as 4.9 million barrels per day in the second quarter, according to the International Energy Agency. But the optimism is tempered by events on the water: vessel-tracking data shows only four commodity ships transiting on Tuesday, down from 10 on Monday and a recent average of roughly 13. And on Monday night, two tankers carrying Saudi crude—the Saudi-flagged VLCC Sidr and the Liberian-flagged Senegal Prosperity—were reportedly struck minutes apart near Khasab, Oman. Reuters (TRI) reported that Bahri, Saudi Arabia's shipping company, said two sailors were killed in the incident.

"The single-day spike is encouraging, but it's not proof the strait is safe," said a Gulf-based shipping analyst who asked not to be named. "The attacks on the Saudi vessels show that any recovery can be quickly reversed."

The Data Conundrum

Daily barrel figures for Hormuz are notoriously difficult to pin down. Vessel sizes vary, cargo loads differ, and some ships turn off their AIS transponders to avoid detection, making real-time estimates imprecise. Kpler, a maritime data firm, initially estimated that only about 4.9 million barrels moved on Monday, but later revised its assessment upward to roughly 8.6 million barrels after adjusting for dark transits and ship-to-ship transfers. Wright's figure of 17 million barrels suggests a much higher volume, possibly including cargoes that are not visible to standard tracking.

"The discrepancy highlights the opacity of the market," said a commodities trader in Singapore. "You have to take these numbers with a grain of salt."

Goldman Sachs (GS) analysts last month estimated that total crude and product flows through Hormuz had recovered to about 15-16 million barrels per day, still 7-8 million barrels below pre-conflict levels. The bank attributed the recovery partly to the use of non-Hormuz pipelines and changes in loading patterns, but noted that alternative capacity is limited to about 3.5-5.5 million barrels per day.

Economic and Market Implications

The reported surge in flows has helped ease crude prices, which have retreated to around $89 a barrel from over $120 in April. More exports reduce the immediate risk of a physical shortage, but the renewed attacks on Saudi tankers inject uncertainty. "The market is pricing in a higher risk premium again," said a London-based oil broker. "An attack like that reminds everyone that the strait remains a flashpoint."

The human cost is also front and center. The reported deaths of two sailors on the Sidr highlight the danger faced by seafarers navigating these waters, a point often lost in discussions of barrels and basis points. Bahri, which operates the Sidr, did not respond to requests for comment. Central Command, which has been escorting vessels through the strait, said it had facilitated the transit of roughly 1,300 ships and more than 660 million barrels of crude since early May, but it could not immediately confirm the latest incident.

Outlook

Short term, the focus will be on whether the seven-day average flow can sustain above 10 million barrels per day without further disruptions. The Tuesday dip in crossings and the attacks on Saudi cargoes suggest that volatility will remain high. Freight costs and war-risk insurance premiums are likely to stay elevated, and any major incident could send prices soaring again.

Medium term, shippers and exporters may increasingly rely on protected convoys, non-Hormuz pipelines, and ship-to-ship transfers to keep oil moving. These adaptations are costlier and less reliable than normal commercial traffic, but they have helped prevent a complete shutdown.

Long term, the crisis reinforces the case for energy diversification, strategic stockpiles, and pipeline infrastructure. But for now, the Strait of Hormuz remains a fragile artery, and Monday's record flow is a reminder of both its capacity and its vulnerability.

Correction: An earlier version of this article misstated the number of vessels transiting on Tuesday. This version has been updated to reflect the correct figure of four commodity vessels, according to Kpler preliminary data.