Why Oil Prices Fell Despite the Strait of Hormuz Crisis

Oil prices ended lower on Friday, Aug. 28, extending a third consecutive weekly decline. Brent settled at $89.31 a barrel, down 39 cents on the day and more than 5% for the week, while West Texas Intermediate (WTI) settled at $83.40, down 13 cents and more than 4% for the week. 27

The main explanation was a change in expectations, not a complete resolution of the shipping crisis. Traders began to price in a smaller chance of a prolonged physical supply disruption through the Strait of Hormuz, while also weighing the possibility that tighter U.S. monetary policy could weaken future oil demand. Reuters described the market as reacting to additional flows, an Iran–Oman shipping corridor and U.S. mine-clearance claims. 18

The immediate reason oil fell

Oil prices had carried a geopolitical risk premium because restricted traffic through Hormuz threatened the movement of crude from the Gulf. By Friday, reports of diplomatic activity and possible navigation arrangements suggested that at least some flows could resume.

Iran and Oman had discussed a temporary joint navigational corridor and cooperation on mine clearance. Separate mediation efforts pushed Tehran toward preparing conditions for restoring normal traffic. Those developments did not guarantee a reopening, but they reduced the market’s near-term estimate of a worst-case supply outage. 313335

That distinction matters in oil markets: prices can fall when the probability of a severe disruption declines, even if supply remains impaired and the underlying conflict continues.

Why the Strait of Hormuz still matters

The market had already shown how sensitive prices were to changes in shipping expectations. Earlier reporting indicated that traffic through the strait had fallen to six vessels from a 10-day average of about 11, while Iran said the waterway would remain closed until the United States changed its behavior. 5

The later discussions therefore represented a possible framework, not proof that normal navigation had returned. A temporary corridor, mine-clearance activity and uneven vessel traffic all point to continuing operational risk. Iran’s conditions for restoring normal traffic were also still being developed, leaving uncertainty over whether any arrangement would be durable or enforceable. 33

The demand-side pressure from U.S. monetary policy

Investors also evaluated signals about the Federal Reserve’s inflation-fighting policy. If concerns about inflation lead markets to expect higher interest rates or tighter financial conditions, economic activity and prospective oil consumption could weaken. That creates a demand-side headwind for crude, particularly when the market is already reassessing the scale of a supply disruption. 18

This factor helped reinforce the bearish reaction to the Hormuz news: traders were simultaneously marking down the potential supply shock and considering a less supportive demand outlook.

Returning flows and U.S. inventories added to the pressure

Recovering Gulf exports and unexpectedly higher traffic through the Iran–Oman corridor suggested that the actual loss of accessible supply might be smaller than initially feared. Reuters reported that the market had been surprised by the additional flow, the proposed corridor and U.S. mine-clearance claims. 18

U.S. crude inventories also provided a more tangible near-term bearish signal. Although inventories alone do not settle the global outlook, rising stocks can indicate that current supply is exceeding immediate demand or that refinery and export conditions are less supportive than expected. Reuters previously linked weaker oil prices with attention to U.S. stock changes and the Iran–Oman shipping discussions. 8

What could push prices lower

A sustained and verifiable reopening of Hormuz would improve access to Gulf supply and remove part of the geopolitical premium. If shipping returned to normal and diplomatic arrangements held, prices could face further downward pressure from increased availability and reduced fear of an abrupt shortage. The market has reacted in that direction before when expectations of a U.S.–Iran peace agreement improved. 20

A longer period of softer U.S. demand expectations would add to that pressure. Higher interest rates, if they materialize, would matter less as a single-day event than as part of a broader slowdown in economic activity and oil consumption.

What could send oil higher again

The bearish case depends on progress becoming real rather than remaining diplomatic signaling. Failed negotiations, new conditions from Iran, attacks on tankers or another sharp reduction in vessel traffic could quickly restore the risk premium. Oil rose when doubts about a peace agreement and threats to shipping made prolonged disruption appear more likely. 25

U.S. sanctions are another source of uncertainty. Tougher sanctions could restrict Iranian exports and make cooperation over navigation more difficult, while also increasing the risk of escalation. Conversely, a stable shipping arrangement would improve the flow of accessible Gulf crude and weigh on prices.

Bottom line

Friday’s decline reflected a mildly bearish shift in the market’s near-term risk assessment. Hopes for partial Hormuz normalization, some returning Gulf flows, mine-clearance claims and higher U.S. inventories outweighed the remaining geopolitical premium, while concerns about tighter U.S. monetary policy added a demand-side drag. 1827

But the decline should not be read as proof that the crisis is over. Shipping remains uneven, the proposed arrangements are not yet the same as a durable reopening, and sanctions or renewed conflict could reverse the move quickly. For now, the oil market is balancing a lower probability of an immediate supply shock against a still-substantial risk that the Strait of Hormuz remains unreliable.