Oil Prices Rise as Supply Concerns Return

Oil prices advanced on Monday as stalled US-Iran negotiations and a sharp decline in shipping through the Strait of Hormuz renewed concerns about Middle Eastern supply.

Brent crude futures rose as much as 1% to approximately $89.40 per barrel, while US West Texas Intermediate climbed toward $82.83.

Both benchmarks gained more than 5% during the previous week following attacks on tankers operated by the Abu Dhabi National Oil Company and reports of an attack on a Saudi Aramco refinery.

The latest move leaves Brent close to the psychologically important $90 level, where traders must assess whether worsening security conditions justify a larger geopolitical premium.

The oil market remains caught between limited physical flows through Hormuz and concern that elevated prices will weaken global demand.

US-Iran Negotiations Remain Stalled

Prospects for a diplomatic agreement weakened after Iranian Foreign Minister Abbas Araqchi said no decision had been made about resuming negotiations with the United States.

The absence of progress reduces expectations that normal shipping conditions will return quickly.

Potential issues affecting the negotiations include:

• Control and security of the Strait of Hormuz.
• Iran’s nuclear programme.
• Frozen Iranian assets.
• Economic sanctions.
• The US naval blockade.
• Regional military activity.
• Security guarantees for commercial shipping.
• Conditions for restoring oil exports.

Oil prices may remain highly sensitive to statements from Washington and Tehran because diplomatic progress could rapidly reduce the geopolitical premium.

Conversely, evidence that negotiations have ended or military preparations are increasing could push Brent above $90.

Hormuz Shipping Activity Declines Sharply

Shipping activity through the Strait of Hormuz weakened substantially over the weekend.

Only five vessels reportedly passed through the waterway on Saturday, while no transits were recorded on Sunday. This compared with approximately 31 vessel movements during the previous weekend.

The decline is significant because the strait is one of the world’s most important energy routes.

Before the conflict, around one-fifth of global oil and liquefied-natural-gas supplies normally passed through the waterway.

Reduced traffic can disrupt supply even when oilfields remain operational. Producers may be unable to export crude, forcing them to use storage or reduce production.

Lower tanker traffic may increase:

• Crude-delivery delays.
• Tanker charter rates.
• Maritime insurance premiums.
• Security expenses.
• Refinery procurement costs.
• Regional crude-price differences.
• Demand for alternative export routes.

A prolonged decline in shipping could tighten physical supply and push refined-product prices higher.

Fresh Tanker Attack Raises Security Concerns

The United Arab Emirates accused Iran of targeting a third ADNOC-operated tanker.

The allegation followed attacks on other ADNOC-linked vessels during the previous week.

Even when vessels remain operational and no cargo is lost, attacks can affect the market by discouraging shipping companies and crews from entering the region.

Commercial operators must consider:

• The safety of their crews.
• The risk of vessel damage.
• The availability of insurance.
• Potential cargo loss.
• Naval protection.
• Legal and sanctions exposure.
• Delays caused by inspections or diversions.

Repeated attacks may reduce effective tanker capacity as vessels avoid the Gulf or demand substantially higher rates.

Iran had not confirmed responsibility for the latest reported incident at the time of publication.

Saudi Refinery Risks Extend Beyond Hormuz

Reports of an attack on a Saudi Aramco refinery added another source of concern.

Disruption to refineries can affect markets differently from disruption to crude production.

A refinery converts crude into products such as:

• Petrol.
• Diesel.
• Jet fuel.
• Heating oil.
• Petrochemical feedstocks.
• Marine fuel.

Damage or precautionary shutdowns can reduce the supply of refined products even if crude remains available.

Refinery disruption may therefore strengthen product prices and refining margins while producing a more complicated reaction in crude futures.

The location of an affected facility is also important. Infrastructure on the Red Sea may provide an alternative to Gulf export routes, making its security strategically significant.

Market Needs Evidence of Further Escalation

Analysts have cautioned that additional price gains may require clearer evidence of escalating aggression or direct damage to energy infrastructure.

Much of the existing geopolitical risk is already reflected in oil prices.

For Brent to move sustainably above $90, the market may need confirmation of:

• A further decline in tanker traffic.
• Significant production shutdowns.
• Damage to export terminals or pipelines.
• Longer shipping delays.
• Another breakdown in diplomatic efforts.
• Expanded sanctions or military action.
• Falling commercial inventories.

Without such confirmation, traders may take profits after the strong advance recorded during the previous week.

This creates the possibility of sharp intraday reversals as each diplomatic or military headline changes the expected supply outlook.

Weak Demand Forecasts Limit the Rally

Supply risks are supporting oil, but concerns about global consumption continue limiting the upside.

OPEC and the International Energy Agency recently reduced their oil-demand forecasts for 2026.

OPEC lowered its projection for global demand growth to approximately 580,000 barrels per day.

Higher prices can weaken demand by increasing costs for households and businesses. Consumers may reduce travel, while manufacturers and transportation companies may cut activity or seek cheaper alternatives.

Demand may also be affected by:

• Slower global economic growth.
• Reduced industrial production.
• Weaker freight activity.
• Higher consumer fuel prices.
• Energy-efficiency improvements.
• Increased electric-vehicle adoption.
• Substitution toward other energy sources.

The oil market could therefore tighten physically while overall consumption declines.

US Inventories Provide a Bearish Counterweight

A recent substantial increase in US crude inventories has also limited oil-price gains.

Rising inventories may indicate that domestic supply is more comfortable than international conditions suggest.

However, a single weekly increase can result from:

• Higher imports.
• Lower exports.
• Refinery maintenance.
• Reduced refinery utilisation.
• Temporary logistical changes.
• Seasonal demand patterns.
• Changes in production.

Traders should examine crude inventories alongside gasoline stocks, distillate supplies, refinery activity and implied fuel demand.

Continued inventory growth would strengthen the bearish case. A reversal into large draws could reinforce concerns that the market is tightening.

Alternative Export Routes Have Limited Capacity

Saudi Arabia and the United Arab Emirates have pipelines that allow some oil to bypass the Strait of Hormuz.

These routes can move crude toward Red Sea or Indian Ocean terminals, reducing dependence on the Gulf waterway.

However, they cannot fully replace normal Hormuz flows because of:

• Limited pipeline capacity.
• Maintenance requirements.
• Storage constraints.
• Differences in crude quality.
• Terminal capacity.
• Security risks along alternative routes.
• Existing contractual commitments.

Some producers may also redirect cargoes through ship-to-ship transfers or use tankers operating with limited tracking visibility.

These measures can support exports but reduce transparency and increase shipping risk.

Higher Oil Prices Threaten the Inflation Outlook

A sustained move toward or above $90 could create additional inflation pressure.

Oil prices affect the economy directly through petrol, diesel and household energy bills. Indirect effects appear through transportation, manufacturing and supply chains.

Industries particularly exposed include:

• Airlines.
• Shipping operators.
• Logistics companies.
• Chemicals manufacturers.
• Agricultural businesses.
• Construction companies.
• Consumer-goods producers.
• Electricity generators.

Higher energy costs can reduce corporate margins if businesses cannot pass the increase to customers.

If companies raise prices, consumer inflation may accelerate and encourage central banks to maintain restrictive monetary policy.

Federal Reserve Expectations Could Shift Again

Moderate US consumer and producer inflation recently reduced expectations for a September Federal Reserve rate increase.

Markets assigned a probability of around 30% to a September increase, down from approximately 47% before the latest data.

A sustained oil rally could challenge that outlook.

Federal Reserve policymakers may consider:

• The duration of the energy shock.
• Whether fuel costs spread into services.
• Changes in consumer inflation expectations.
• The effect on economic growth.
• Corporate pricing behaviour.
• Labour-market conditions.

A temporary increase may have limited policy implications. Persistent energy inflation could make the Federal Reserve more cautious about signalling the end of its tightening cycle.

Implications for Related Markets

USDCAD

Canada is a major energy exporter, so higher oil prices can sometimes support the Canadian dollar.

The relationship is not automatic. US interest-rate expectations, Canadian data and broader risk sentiment may remain more influential.

Gold

Gold may benefit from geopolitical uncertainty and defensive demand.

However, oil-driven inflation can increase Treasury yields and support the dollar, creating pressure on the non-yielding metal.

Equity markets

Energy producers may benefit from higher realised prices, while airlines, transportation companies and manufacturers may face higher costs.

Asian currencies

Currencies of major oil-importing economies may weaken if energy costs increase import bills and reduce trade surpluses.

Market Outlook

The rise in oil prices reflects renewed concern that stalled US-Iran talks and lower Hormuz traffic will prolong the disruption to Middle Eastern exports.

Brent’s approach toward $90 places the market near an important psychological level. A confirmed reduction in physical supply or further infrastructure attacks could support a breakout above this area.

However, weaker demand forecasts, large US inventories and the possibility that geopolitical risk is already reflected in prices may restrict the advance.

The near-term outlook remains cautiously bullish but highly headline-driven. Supply risks support Brent and WTI, while demand concerns and changing diplomatic expectations create substantial reversal risk.