A quiet Sunday in one of the world’s most important oil corridors carried a loud warning for energy markets. Shipping data tracked by Kpler registered no commodity-vessel crossings through the Strait of Hormuz on August 16, after only five on Saturday, a dramatic slowdown from normal traffic. At the same time, Brent crude remained just under US$90 a barrel as traders weighed the risk of deeper supply disruption against efforts to move more oil around the chokepoint.
For Canadian households, the tension is no longer an abstract story happening thousands of kilometres away. Gasoline prices have already risen sharply from a year ago, energy costs are feeding back into inflation, and Ottawa’s temporary federal fuel-tax break is approaching its September expiry. The result is an unusually fragile late-summer outlook in which another disruption could quickly show up at Canadian pumps.
Sunday’s Shipping Data Turned Hormuz Into the Market’s Alarm Bell
The most striking development was not an oil-price spike but the lack of visible commodity traffic. Kpler shipping data cited by Reuters showed five commodity vessels transiting the Strait of Hormuz on Saturday, August 15, and none registered on Sunday, compared with 31 vessels during the previous weekend. Before the current conflict, more than 130 ships of all types crossed the waterway on a typical day. That contrast helps explain why traders remain reluctant to treat the latest easing in crude prices as a return to normal.
There is an important qualification. Vessel-tracking systems do not provide a perfect count because ships operating with automatic identification systems switched off or otherwise obscured may not appear in commercial databases. Even so, the collapse in registered traffic comes after attacks on vessels linked to Abu Dhabi National Oil Company, reinforcing the sense that passage through Hormuz carries an unusually high operational risk. For oil buyers, insurers and shipowners, the relevant question is no longer simply whether the strait is technically open. It is whether enough companies are willing to use it consistently.
Brent Near $90 Reflects Fear, but Not Full-Blown Market Panic
Brent crude was trading at about US$88.58 a barrel late Monday morning in New York, while West Texas Intermediate was around US$82.22. Both benchmarks had risen more than 5% during the previous week after attacks involving energy infrastructure and tankers renewed fears of supply losses. Prices hovering near US$90 therefore represent a substantial geopolitical premium, but they remain below levels that would signal traders expect a complete and prolonged shutdown of Gulf exports.
That distinction matters. Markets appear to be pricing two competing possibilities at once. In one, constrained Hormuz traffic, attacks on shipping and reduced Gulf production keep physical oil supplies tight for months. In the other, alternative export routes expand, diplomacy reduces the threat to vessels and traffic gradually recovers. Reuters reported that ADNOC had been selling millions of barrels of crude into the spot market and that Saudi Aramco was offering supplies that could avoid Hormuz. Those measures provide some reassurance. They do not erase the underlying vulnerability, which is why relatively small changes in shipping conditions can still produce large daily moves in crude futures.
The Strait Still Carries Too Much Energy for the World to Ignore
Hormuz is unusually difficult to replace because of the scale of energy that normally passes through it. International Energy Agency data show that roughly 19.9 million barrels a day of crude oil and petroleum products moved through the strait in 2025, representing about a quarter of global seaborne oil trade. Crude alone accounted for nearly 15 million barrels a day. Around 80% of the oil moving through the passage was destined for Asian markets, with China and India together receiving a particularly large share.
The geography makes that dependence more striking. The strait narrows to roughly 54 kilometres, with designated shipping lanes only a few kilometres wide in each direction. It is also crucial for liquefied natural gas: before the conflict, the overwhelming majority of Qatar’s LNG exports relied on this route. The U.S. Energy Information Administration estimates that oil and other petroleum-liquid flows through Hormuz averaged only 4.9 million barrels a day in the second quarter of 2026, down from 21.6 million in the fourth quarter of 2025. Even partial disruption therefore removes volumes large enough to reshape global pricing.
Bypass Pipelines Help, but They Cannot Fully Replace the Strait
Saudi Arabia and the United Arab Emirates possess the most important alternatives to Hormuz. Saudi Arabia can move crude westward through its East-West pipeline system toward the Red Sea port of Yanbu, while the UAE operates a pipeline connecting Abu Dhabi’s producing region with Fujairah on the Gulf of Oman. The IEA estimates that the two countries together have roughly 3.5 million to 5.5 million barrels a day of potentially available bypass capacity, depending on operating conditions.
Those pipelines have become crucial pressure valves, and their utilization has increased during the conflict. Yet even the upper end of their estimated spare capacity falls far short of the almost 20 million barrels a day of oil and petroleum products that passed through Hormuz in 2025. There are also practical limits involving storage, port capacity, crude grades, tanker scheduling and how quickly pipeline systems can be operated at high rates. Iran’s alternative outlet at Jask, meanwhile, is not currently considered a meaningful substitute. Bypass infrastructure can prevent a disruption from becoming immediately catastrophic, but it cannot make the strait irrelevant.
Refinery Stress Means Crude Oil Is Only Part of the Fuel Story
Drivers do not purchase crude oil, and that distinction has become especially important in 2026. The IEA reported that global refinery throughput averaged about 80.9 million barrels a day in July, almost 5 million barrels a day lower than a year earlier. Refining margins for products such as gasoline, diesel and jet fuel surged as disruptions reduced the amount of finished fuel reaching international markets. Global observed oil inventories also declined by 69 million barrels during July and were roughly 410 million barrels lower than at the start of the conflict.
That means Brent can fall several dollars without producing an equivalent drop at filling stations. Pump prices depend on crude costs, but also on refinery availability, wholesale gasoline markets, transportation, regional inventories, taxes and retail margins. A refinery outage or shortage of gasoline cargoes can therefore keep consumer prices elevated even when the crude benchmark stabilizes. This is one reason Canadian motorists may find the current market frustrating: headlines showing oil below an earlier peak can coexist with gasoline that still feels unusually expensive. Relief ultimately requires improvement across the supply chain, not merely a calmer futures market.
Canadian Gasoline Prices Are Already Swinging at Painful Levels
The Canadian Automobile Association’s national average stood at 166.8 cents per litre on August 17. That was down from 168.8 cents the previous day and below the 172.6-cent average recorded a month earlier, but it remained far above the 133.3 cents motorists were paying a year earlier. The gap works out to 33.5 cents per litre. On a 50-litre purchase, that difference alone represents roughly C$16.75 more than the same volume would have cost at the year-earlier national average.
Recent volatility has been just as notable as the absolute price. CAA data show the national average falling as low as 153.3 cents per litre on August 6 after reaching 180.3 cents on July 25. Over the past year, the organization recorded a low of 120 cents in late December 2025 and a high of 190.4 cents in May 2026. Such swings make household budgeting difficult because commuting, school trips, deliveries and rural travel cannot always be postponed simply because international energy markets have entered another volatile week.
Higher Gasoline Costs Are Showing Up in Canada’s Inflation Numbers
The impact of expensive fuel is already visible beyond service-station signs. Statistics Canada reported that consumer prices rose 3.0% year over year in July, putting headline inflation at the top of the Bank of Canada’s 1% to 3% control range. Gasoline was the largest contributor to the acceleration: prices were 25.7% higher than a year earlier, compared with a 20.5% annual increase in June. The overall consumer price index also climbed 0.5% from June to July.
Energy matters because it can touch household spending several times. A family may first encounter the increase when filling a vehicle, then indirectly through higher transportation costs embedded in air travel, deliveries and some goods. The July data were not uniformly alarming: the Bank of Canada’s preferred core measures remained close to 2%, while grocery inflation slowed to 3.1% and shelter costs rose 1.3%. Still, persistent fuel pressure complicates the inflation picture. Another sustained crude-price surge could keep headline inflation elevated even while underlying price pressures elsewhere continue to moderate.
Ottawa’s Fuel-Tax Holiday Is Cushioning Prices, but Only Temporarily
Canadian pump prices would currently be higher without a federal policy introduced earlier in the year. Parliament enacted a temporary suspension of the federal fuel excise tax from April 20 through September 7, 2026. The measure removes 10 cents per litre from the federal excise tax on gasoline and 4 cents per litre from diesel. Ottawa introduced the relief as energy costs surged, and Finance Canada estimated the broader temporary measure would provide billions of dollars in tax relief during 2026.
Its expiry now creates an awkward calendar for motorists. Unless the government changes the policy again, the full federal excise tax is scheduled to return on September 8. That does not necessarily mean posted gasoline prices will jump by precisely 10 cents overnight, because wholesale prices, margins and other market factors can move simultaneously. But it does mean a significant temporary buffer disappears while crude and refined-fuel markets remain unsettled. A return of the tax during another upswing in international oil prices would be particularly noticeable for households that drive long distances or operate multiple vehicles.
Canada’s Oil Wealth Does Not Shield Its Drivers From Global Prices
Canada is the world’s fourth-largest crude oil producer, and production reached a record 5.1 million barrels a day in 2024. That can make high domestic gasoline prices seem counterintuitive. The explanation lies in how the North American energy system works. Crude oil and refined fuels are traded in interconnected markets, and Canadian prices respond to international crude benchmarks, refinery economics, currency movements, regional supply conditions and competition rather than simply to how much oil is produced within Canada’s borders.
Regional infrastructure adds another layer. The Canada Energy Regulator notes that Ontario and Quebec consumed just over 900,000 barrels a day of refined petroleum products in 2024, nearly half of Canadian consumption. Central Canada produces little crude itself and relies heavily on western Canadian oil delivered through pipelines that pass through the United States, along with U.S. crude imports and marine shipments. More than 95% of Canada’s crude exports also went to the United States in 2024. Canada therefore has abundant resources, but its production, refining, pipeline and consumer markets remain deeply integrated with global and U.S. pricing systems.
The Next Move Depends on Ships, Inventories and What Happens in September
The most important short-term indicator may be physical shipping rather than the daily Brent quote. If commodity-vessel transits through Hormuz begin recovering consistently without further attacks, insurers and shipowners could regain confidence and some of the geopolitical premium in crude prices could fade. The EIA’s current outlook assumes flows through the strait remain severely constrained through August before gradually improving in September. Under that scenario, it projects Brent averaging roughly US$85 a barrel in the third quarter and declining toward US$78 in the fourth quarter.
Those figures are forecasts, not guarantees. Another attack on a tanker, prolonged production shut-ins, refinery disruptions or further inventory losses could quickly overturn them. Conversely, sustained reopening of Hormuz and rising Gulf output could offer motorists meaningful relief. For Canadians, September brings an additional domestic variable because the federal excise-tax suspension is scheduled to end after September 7. That leaves drivers watching two clocks at once: one measuring whether Gulf oil flows are returning, and another counting down to the scheduled restoration of a 10-cent-per-litre federal gasoline tax.
