Persian Gulf supply disruption is now the defining freight risk of 2026

Saudi crude exports to the United States have fallen to zero. That single data point, reported by Transport Topics on August 6, captures how completely the U.S.-Iran conflict has reshaped the global energy supply chain in 2026. For operations and procurement leaders, the number is not an abstraction: it is already moving through fuel surcharges, carrier rate cards, and port congestion figures.

A closed strait and a spiking benchmark

Brent crude, the international pricing standard, rose 3.9% to $82.55 a barrel this week, driven by sustained uncertainty over the direction of the U.S.-Iran war, according to Transport Topics reporter Damian J. Troise. The conflict has all but shut down Persian Gulf crude flows, and Saudi oil exports have been disrupted for months as a direct consequence.

The Strait of Hormuz sits at the center of the standoff. Oman-mediated talks between the U.S. and Iran on reopening the waterway were ongoing as of late July, with the two sides agreeing to extend a pause in strikes while negotiations continued, according to Bloomberg via SupplyChainBrain. Those talks have produced cautious optimism: oil prices dipped on reports of progress, and Saudi Aramco moved to cut its Arab Light price for Asian customers by 50 cents a barrel to $2 below the regional benchmark for September delivery, per Transport Topics.

But the optimism has limits. Shipowners are warning that even a negotiated reopening of Hormuz could introduce a new cost layer: Iran has raised the prospect of imposing transit tolls on vessels passing through the strait. According to Bloomberg reporting cited by SupplyChainBrain, shipowners say those fees would not stay localized. The industry expectation is that Hormuz tolls would trigger additional surcharges at other points in global routing, spreading the cost impact well beyond the Gulf.

Port volumes climb while drayage capacity shrinks

At U.S. ports, the effects are tangible and immediate. Trucking companies serving major coastal ports continued to see capacity tightening in June as import volumes rose, moving past difficult prior-year comparisons, according to Transport Topics reporter Connor D. Wolf. The combination of rising volume and constrained drayage is a pressure point for any shipper relying on just-in-time port-to-DC moves.

The broader context matters here. CMA CGM, the Marseille-based container carrier, reported that a transpacific revival has boosted its profits in recent months, even as it has confronted sustained trade volatility from tariff policy and Middle East conflict uncertainty, according to Bloomberg via SupplyChainBrain. Higher container demand on the transpacific lane is good for carrier revenue but adds to the congestion picture at West Coast ports already absorbing tighter drayage supply.

GXO Logistics, one of the largest contract logistics operators in North America and Europe, announced on August 5 a significant restructuring of its operating model, shifting to a global structure aimed at sustaining growth through higher-margin contracts and cutting costs, according to Transport Topics. The move reflects how large 3PLs are repositioning for a freight environment defined less by volume growth and more by margin management under persistent cost pressure.

Canada tariff deadline adds a second simultaneous pressure

Supply chain teams managing cross-border flows into Canada are tracking a separate countdown. The U.S. has set August 19 as the date it will apply 50% tariffs on a new basket of Canadian-made goods unless a broader trade deal is reached. Canadian Prime Minister Mark Carney is pushing for wider relief in negotiations, according to Transport Topics reporters Brian Platt and Nojoud Al Mallees. With less than two weeks remaining, procurement teams sourcing from Canadian suppliers or moving goods across the northern border need contingency plans in place now, not after a deal collapses.

The parallel nature of these disruptions is what makes 2026 operationally distinct. A fuel cost shock from the Gulf, tightening drayage at ports, a potential transit toll regime in Hormuz, and a tariff cliff with Canada are not sequential problems. They are concurrent, and they compound each other across carrier contracts, fuel surcharge clauses, and landed-cost models.

What this means for your team

• Audit fuel surcharge clauses in every carrier contract now: with Brent at $82.55 and no clear resolution to the Gulf conflict, surcharge trigger points may activate sooner than your current freight budget assumes.
• Model a Hormuz toll scenario into your ocean freight cost projections: shipowners are already signaling the fees would cascade into surcharges beyond the Gulf, affecting lanes that do not touch the strait directly.
• Confirm your Canadian-sourced goods exposure before August 19: if a U.S.-Canada trade deal is not reached, 50% tariffs on a new goods basket take effect and landed costs shift immediately.
• Engage drayage providers at key ports on capacity commitments for Q3: June data shows tightening supply against rising import volume, and spot availability will deteriorate further if that trend holds.