Oil prices are sending a troubling message to Canadian drivers and businesses: even a headline-grabbing fuel deal cannot guarantee relief at the pump. On Monday, October 12, Brent crude climbed above US$106 a barrel as new attacks in the Middle East unsettled energy markets, despite President Donald Trump’s announcement of a plan to bring Russian diesel back into international trade.
The rebound exposes a difficult reality. More diesel could ease one part of the fuel shortage, but the threat to oil shipments, damaged refineries and uncertain diplomacy remain powerful forces. In Canada, where gasoline already costs considerably more than a year ago and diesel is squeezing freight operators, the stakes extend from family budgets to the price of moving groceries and other essentials.
Brent Breaks Above US$106 as Markets Reverse Course
The trading day began with a hint of relief. Oil initially fell as investors considered whether Russian diesel shipments and a proposed Russia–Ukraine pause in attacks on energy facilities might improve supplies. That optimism faded. By 11:07 a.m. Eastern time on October 12, Brent crude futures had climbed to US$106.76 a barrel, up about 2%, according to Reuters. It was the international benchmark’s highest level since September 29. U.S. West Texas Intermediate crude was trading at US$93.69, also up about 2%.
The distinction between those benchmarks matters for Canadians. Brent is a widely used reference for international oil prices, while WTI represents a major North American crude market. Neither figure is the price of gasoline or diesel at a service station. But elevated crude prices can raise refiners’ input costs and keep wholesale fuel markets nervous. Monday’s reversal showed how quickly expectations about additional supply can be overwhelmed by fears about whether existing supply will reach its buyers safely.
What Trump’s Russian Diesel Agreement Actually Promises
Trump said on October 9 that a conversation with Russian President Vladimir Putin had produced a plan to add diesel to U.S. and global markets. He described an immediate release of more than 300,000 metric tonnes, another 500,000 tonnes during November and 1 million tonnes afterward. A further 3 million tonnes would depend on the condition of Russia’s refineries. Added together, those announced quantities exceed 4.8 million tonnes, but they are proposed deliveries over time, not fuel already confirmed at North American terminals.
The administration also changed the legal landscape. On October 9, the U.S. Treasury issued General License 135, authorizing specified transactions involving Russian-origin diesel through April 7, 2027. Moscow said it was willing to supply oil products, but its public statement did not confirm Trump’s exact volumes or shipment schedule. That gap matters: a political announcement and permission to trade do not establish when ships will load, where cargoes will go or how much additional diesel consumers will actually receive.
Why New Diesel Barrels May Provide Only Limited Relief
Diesel is not the same thing as crude oil. It is a refined fuel used by trucks, farm machinery and other equipment, so an increase in diesel availability can help that market without resolving a shortage of crude or the danger facing tankers. The deal’s first tranche of roughly 300,000 tonnes amounts to about 2.25 million barrels of diesel. The release would arrive into a global market whose supply problems have been building for months, rather than reversing those problems overnight.
Russia’s ability to deliver is another uncertainty. In September, the International Energy Agency estimated Russian diesel production had fallen nearly 30% as repeated Ukrainian strikes damaged refineries. Global seaborne diesel and gasoil exports averaged 4.7 million barrels a day during the first eight months of 2026, down 10% from a year earlier. Diesel markets did react to Trump’s announcement: European gasoil futures fell on Monday even as crude rose. The contrasting moves underline the difference between short-term price expectations and a lasting recovery in physical supply.
Attacks Around Saudi Arabia and Hormuz Change the Calculation
The immediate spark for Monday’s rebound came from the Middle East. Iran-aligned Houthi forces claimed responsibility for a weekend attack on Riyadh’s international airport that killed 13 people and injured more than 300, according to Reuters. Further attacks followed, adding to concern about the security of Saudi infrastructure. Separately, maritime authorities reported a drone strike on a tanker near Sohar, Oman, and damage to another vessel crossing the Strait of Hormuz. These incidents raised fresh doubts about the durability of a recent recovery in regional oil exports.
Hormuz is not just another shipping lane. Before the 2026 conflict disrupted trade, roughly one-fifth of the world’s petroleum liquids consumption moved through the strait, according to the U.S. Energy Information Administration. Tankers delayed by threats, higher insurance costs or route restrictions can leave refiners scrambling even when oil exists somewhere in the system. For a Canadian motorist, events thousands of kilometres away may seem distant. For companies setting wholesale fuel prices, they are part of the same interconnected market.
Ukraine and U.S. Lawmakers Challenge the Deal’s Political Cost
The Russian diesel plan has also collided with the war in Ukraine. Trump announced what he described as an energy ceasefire between Moscow and Kyiv, but neither side confirmed a final agreement. Ukrainian President Volodymyr Zelenskyy said Russian attacks had continued, striking at least six energy targets. The Kremlin said discussions about a possible ceasefire were still underway. Those competing accounts leave the proposed pause in serious doubt. Without an enforceable agreement, hopes for an uninterrupted recovery in regional energy infrastructure remain fragile.
Back in Washington, four Republican and two Democratic senators jointly urged the administration to reverse course on Russian diesel. They argued that new purchases could undermine efforts to restrict Moscow’s energy income while its war continues. Trump has defended the initiative as an attempt to lower costs for farmers, truckers and other Americans. That policy conflict creates another source of uncertainty for fuel traders: even if Russia can export more product, the scale, legality and political durability of future purchases remain contested. Lower prices are the goal, but the path to them is anything but settled.
Canadian Drivers Are Already Paying Far More Than Last Year
The Canadian Automobile Association’s national gasoline average stood at 176.5 cents per litre when its figures were updated at 4 a.m. on October 12. That was slightly lower than the preceding day’s 177.5 cents, an important reminder that Monday’s crude rally had not instantly become a fresh nationwide pump-price spike. Yet the comparison with a year earlier was stark: CAA listed the previous year’s average at 129.8 cents per litre, a difference of 46.7 cents.
For a driver buying 50 litres, that year-over-year gap works out to about C$23.35 more for the same amount of regular gasoline. And diesel users face an even steeper immediate bill. A Canadian news report citing GasBuddy placed the national diesel average at approximately 250.8 cents per litre on October 12. Prices vary considerably by location and station, and different trackers use different surveys. Still, the broader concern is easy to understand: households already adjusting to expensive commuting or long-distance travel have little room for another prolonged fuel-price shock.
Diesel Prices Put Pressure on Trucks, Farms and Store Shelves
For freight businesses, a few extra cents per litre are multiplied across long routes, heavy loads and repeated deliveries. In an October 9 commentary, the Canadian Trucking Alliance warned that rapidly escalating diesel costs were disrupting carriers’ cash flow. Fuel surcharges are designed to share some of that burden with customers, but they cannot eliminate it. When a refrigerated truck carries produce to a supermarket or a carrier delivers parts to a factory, fuel is part of the cost long before the final product reaches a buyer.
Statistics Canada has documented the broader strain. In its second-quarter 2026 business survey, 33.7% of transportation and warehousing firms expected input costs to pose an obstacle; among the specific costs they identified, energy was cited most often, at 65.8%. Nearly one-quarter of firms in that sector expected to raise service prices. These are earlier survey results, not a forecast of Monday’s oil rally. They show why persistently expensive diesel can gradually filter into shipping charges, farm expenses and retail prices without every increase appearing immediately on a receipt.
Canada Exports Oil but Still Buys Into Global Fuel Markets
Canada is a major oil producer, which makes high gasoline prices feel especially frustrating. The Canada Energy Regulator reports that Canadian crude exports averaged 4.3 million barrels a day in 2025, with approximately 90.1% sent to the United States. Expensive oil can therefore increase revenue for some Canadian producers and exporters. But that does not translate automatically into discounted gasoline for Canadian households, because crude production, refining and retail fuel supply operate through different businesses and markets.
The country also trades substantial volumes of finished petroleum products. In 2025, Canada imported about 490,000 barrels a day of refined products, including gasoline and diesel, and nearly 80% came from the United States. Refineries in eastern Canada may also import crude because of geography, transportation access and processing requirements. Meanwhile, Canadian heavy oil can trade at a discount to lighter benchmarks. The paradox is genuine: Canada can benefit economically from stronger oil export prices while drivers and fuel-dependent employers simultaneously absorb higher costs.
Exchange Rates, Refining and Taxes Shape the Final Price
A US$106 Brent quote cannot be converted directly into a particular Canadian pump price. Crude oil is commonly traded in U.S. dollars, so movements in the Canadian dollar can amplify or soften a change in the cost of imported or internationally priced fuel. Refiners must also pay to process crude into gasoline or diesel; distributors move that product to terminals and stations; retailers cover operating costs. Taxes are added on top, with the mix varying by province and, sometimes, municipality.
The Canada Energy Regulator identifies four principal parts of a gasoline price: crude oil, refining margins, marketing margins and taxes. CAA also points to exchange rates, refinery capacity and local competition as relevant factors. Those moving pieces explain why a world oil price may rise on Monday while a local station posts no change until later—or even temporarily cuts its price. They also explain why Canadian regions experience the same international shock differently. The essential question is not simply where crude trades today, but whether higher wholesale replacement costs persist long enough to affect the next delivery of fuel.
What Could Finally Ease Prices—and What Canadians Should Watch
There are potential sources of relief, but none is assured. The International Energy Agency urged member governments on October 11 to accelerate outstanding commitments to release diesel stocks and consider whether further releases are needed. Its governing board is due to review the situation on October 15. More reliable shipping through Hormuz, repairs to damaged refineries and actual deliveries of additional diesel would all reduce different parts of the pressure. Conversely, new attacks or disrupted cargoes could keep markets on edge.
Even professional forecasts point to uncertainty, not a straight-line path upward. Goldman Sachs raised its December Brent forecast from US$85 to US$90 a barrel, while estimating that geopolitical risks were adding more than US$20 to current pricing. That projected December level is below Monday’s intraday price, but it depends on conditions improving. For Canadians, the most useful signs will be sustained changes in Brent, diesel wholesale markets, the Canadian dollar and local pump-price trends. One diplomatic announcement cannot lower a household fuel bill; a durable improvement in physical supply might.
