Saudi Arabia’s shift toward Gulf export terminals helped ease immediate supply concerns following the disruption of its East–West pipeline. But the diplomatic outlook has since suffered a setback: on September 26, President Donald Trump rejected an Iranian proposal linking a truce to the reopening of the Strait of Hormuz. That leaves the prospects for a negotiated restoration of shipping uncertain.
For oil markets, the key question is whether recovering shipments can be sustained while Saudi exports remain more dependent on a vulnerable shipping route.
Saudi Export Recovery Helped Ease Oil's Rally
Brent settled at $108.75 on September 15, as suspended loadings at Yanbu and cancelled Saudi cargoes intensified supply concerns. On September 21, it briefly traded below $100 before closing at $100.34, supported by signs of recovering Saudi shipments and hopes of diplomatic progress (Sources: Reuters, September 15; Reuters, September 21).
That pullback reflected expectations that alternative shipments could cushion the pipeline disruption. It did not establish that regional export capacity had fully recovered.
The Physical Market Still Has Limited Buffers
The IEA’s September report estimated that global oil production fell by 1.6 million barrels per day in August, while observed inventories declined by 507 million barrels between February and August. Those withdrawals show how heavily the market has relied on stored oil to bridge the supply gap, reducing the buffer available against further disruptions (Source: IEA, September Oil Market Report).
The East–West pipeline had been carrying approximately 4–5 million barrels per day before its shutdown, allowing Saudi crude to reach the Red Sea without passing through Hormuz. Its disruption therefore affected a critical alternative export route (Source: Reuters).
By September 15, shipping sources reported that Yanbu loadings had been suspended and some deliveries to European customers cancelled. The risk had begun to translate into disrupted cargo schedules.
Rerouting Increased Shipments Through Hormuz
Saudi Arabia responded by increasing exports from its eastern terminals. According to Reuters, JPMorgan’s September 18 note estimated that Saudi oil moving through Hormuz averaged 2.9 million barrels per day over the preceding six days, up from 0.7 million barrels per day in August.
Tanker-tracking data also showed approximately 14 million barrels loaded onto seven supertankers on September 20, with satellite images placing the vessels near Ras Tanura. These figures indicated a partial recovery in shipments despite the disruption to the Red Sea route (Source: Reuters).
The recovery’s durability depends on repeated successful shipments. A large loading volume on one day does not establish a sustained export rate, and additional Gulf cargoes must be assessed against lost Yanbu volumes to measure the net change in Saudi supply.
Trump's Rejection Complicates the Diplomatic Outlook
On September 26, Trump rejected Iran’s proposed truce arrangement, which Tehran said could allow Hormuz to reopen within a week. Iran’s conditions included ending the U.S. naval blockade, lifting sanctions on Iranian oil and releasing frozen assets. For the oil outlook, this weakens the basis for assuming a rapid diplomatic resolution. It also qualifies the optimism that helped prices retreat on September 21.
The market implication is a continuing risk to the reliability of export routes. Saudi rerouting can relieve immediate pressure, but greater reliance on Hormuz leaves those shipments exposed while negotiations remain unresolved. The rejection itself does not demonstrate another physical supply loss; that would need to appear in transit and export data.
What Will Determine the Next Move in Oil Prices
Four developments will help distinguish temporary relief from a sustained improvement:
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Total Saudi exports: Track cargo volumes across Gulf and Red Sea terminals to assess whether additional eastern shipments offset lost Yanbu supply.
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Pipeline and Yanbu recovery: Look for restored East–West throughput followed by sustained loadings at Yanbu.
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Hormuz transit reliability: Monitor completed passages, delays and security incidents alongside barrel volumes.
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Diplomatic progress: Watch for mutually accepted terms and practical changes to shipping access. Proposals alone do not establish that trade routes are normalising.
Together, these indicators will show whether supply relief is becoming more durable or remains vulnerable to another disruption.
Built for Changing Market Conditions
The shift from Saudi export relief to renewed diplomatic uncertainty illustrates how quickly traders must reassess the market outlook. Understanding what has changed, what remains unresolved and which evidence matters next is essential to making informed decisions.
Tapbit supports that process by bringing together clear market context, reliable execution and structured risk-management tools. As geopolitical developments influence sentiment across markets, its focus remains on helping users assess changing conditions and manage their exposure with discipline. Clarity, preparation and confidence are central to the trading experience Tapbit aims to deliver.
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