Fuel costs have been on a wild ride in 2025, and Canadian fleet managers have felt every bump. Between geopolitical shocks in the Middle East and shifting global shipping routes, the ripple effects have landed squarely on pump prices from Vancouver to Toronto. This post breaks down what's actually happening at the provincial level, why it matters for your budgeting, and what levers you have to pull when the market refuses to sit still.
The National Picture: A Volatile First Half
Canadian diesel prices started the year at a national average of C$1.50, climbed as high as C$2.10 at their peak (a 40% jump) and have since eased back to C$2.01. Gasoline followed a similar arc: from a January average of C$1.48 to a peak of C$2.08 (up 41%), settling more recently at C$1.68.
That's not a typo. A 40%+ swing in either direction, in a matter of months, is the kind of volatility that turns a carefully built annual fuel budget into guesswork by Q2. For fleet operators running dozens or hundreds of vehicles, that swing isn't an abstract number. It's the difference between a profitable quarter and a scramble to renegotiate customer contracts.
What's driving this? Some of it traces back to global supply anxiety. Disruptions tied to the Iran conflict have complicated shipping through the Strait of Hormuz, pushing buyers like South Korea toward alternative routes such as the Red Sea and Saudi supply corridors. When a critical chokepoint like Hormuz gets disrupted, the shockwaves move through global crude benchmarks fast. Canadian pump prices, even though we produce plenty of our own oil, aren't insulated from that global repricing. Meanwhile, broader financial markets have been jumpy too, with U.S. Treasury yields swinging as oil prices stabilize and the U.S. dollar holding roughly steady amid safe-haven demand. All of that macro noise eventually filters down into the cost of a litre at the pump.
Ontario: Diesel Cools Faster Than Gasoline
Ontario tracked the national trend closely but with its own texture. Diesel opened the year at C$1.53, spiked to C$2.12 (a 38% increase), and has since pulled back to C$1.94, a more meaningful retreat from peak than the national average shows. Gasoline, on the other hand, moved from C$1.39 to a peak of C$1.98 (up 43%) before settling at C$1.63.
For Ontario-based fleets, particularly those running mixed diesel-and-gas fleets across the GTA and southwestern Ontario corridors, this divergence matters. Diesel's retreat has been somewhat more forgiving than gasoline's percentage climb, which means fleets weighted heavily toward light-duty gas vehicles may have felt the January-to-peak pinch more acutely in percentage terms, even if diesel's absolute price levels remain higher. If your fleet runs long-haul freight on the 401 corridor, the diesel numbers are the ones to watch closely. A pullback to C$1.94 is welcome, but it's still nowhere near the C$1.53 baseline fleets budgeted against back in January.
What This Means for Route Planning
Ontario fleet managers with flexibility in fueling locations should be tracking price differentials across the province, not just relying on averages. Rural and northern Ontario stations often carry different pricing dynamics than urban centers, and with diesel still elevated well above January levels, even small per-litre savings compound quickly across a fleet doing high mileage.
British Columbia: The Most Volatile Province in This Dataset
BC posted the sharpest swings of the three regions covered here. Diesel moved from a January average of C$1.51 to a peak of C$2.17, a 44% increase and the steepest jump on this list, before easing only modestly to C$2.07. Gasoline followed suit, rising from C$1.47 to a peak of C$2.06 (up 40%), landing more recently at C$1.71.
What stands out about BC is how little diesel has retreated from its peak. While Ontario's diesel price fell back to C$1.94 from a C$2.12 peak, BC's diesel is still sitting at C$2.07 against a C$2.17 peak, a much smaller pullback. For fleets operating in BC, particularly those running freight through Vancouver's port corridors or servicing the interior, this means diesel costs have been stickier and less forgiving than in other provinces. If your operation depends heavily on diesel-powered trucks moving goods to and from coastal terminals, BC's numbers suggest the cost relief that Ontario fleets are starting to see hasn't fully materialized yet on the west coast.
This regional stickiness could be tied to BC's exposure to global shipping and import dynamics. The province's ports are directly plugged into Pacific trade routes, and with shipping patterns shifting globally (as seen in South Korea's pivot toward Red Sea and Saudi supply routes amid Hormuz disruptions), BC's fuel supply chain may be absorbing more of that international volatility than land-locked provinces.
Why Provincial Differences Matter for Fleet Budgeting
It's tempting to manage fuel budgets off national averages, but the data here makes a clear case against that shortcut. Consider the diesel pullback from peak:
- National: Peak C$2.10 → Latest C$2.01 (a modest retreat)
- Ontario: Peak C$2.12 → Latest C$1.94 (a more substantial retreat)
- British Columbia: Peak C$2.17 → Latest C$2.07 (barely moved)
If you're a multi-province fleet operator using a single blended average to forecast costs, you're likely underestimating your BC exposure and overestimating relief in Ontario. The same logic applies to gasoline, where Ontario's retreat to C$1.63 is more pronounced than BC's settling point of C$1.71, despite BC having a lower January starting price.
This is the kind of granularity that matters when you're setting customer rates or negotiating fuel surcharges. It also matters when deciding where to prioritize route efficiency improvements. A flat, national fuel-surcharge formula applied uniformly across a cross-country fleet risks either overcharging Ontario customers or undercharging BC ones, neither of which is sustainable for long.
Practical Steps for Fleet Managers Right Now
1. Rebuild Your Fuel Surcharge Model by Province
If your fuel surcharge or internal cost allocation still runs off a single national number, split it out provincially, at minimum for your highest-volume operating regions. The gap between Ontario's and BC's diesel retreat from peak alone justifies this.
2. Revisit Contracts Signed Near the Peak
Any customer contracts or internal budgets locked in during the peak months (when diesel was pushing past C$2.10-C$2.17 depending on province) should be revisited now that prices have pulled back, particularly in Ontario, where the retreat has been more generous.
3. Watch the Geopolitical Signals, Not Just the Price Board
The swings driving these numbers aren't purely domestic. Shipping route disruptions tied to the Iran conflict, shifting LNG investment strategies from major Asian players like JERA, and broader currency and bond market jitters are all part of the same interconnected system that eventually shows up as a price change at your fleet's fuel card terminal. Fleet managers who keep half an eye on these macro trends tend to react faster than those waiting for the pump price to move first.
4. Build in a Buffer for the Next Swing
Given that diesel and gasoline both moved 38-44% from January lows to peak in every region covered here, treating current prices as stable is risky. Build budget buffers assuming another swing of comparable magnitude is possible, especially if Middle East shipping disruptions persist or global oil markets react to further supply chain shifts.
Where a Price Cap Fits In
This is exactly the kind of environment where budget certainty becomes more valuable than chasing the lowest daily price. FuelAnchor's fuel price-cap service lets fleet managers lock in a ceiling price per litre, so even if diesel spikes back toward the C$2.10-C$2.17 range seen this year, your costs stay predictable, without losing the benefit if prices fall further. For fleets juggling multi-province operations with divergent regional trends like the ones above, that kind of certainty simplifies budgeting considerably.
The Bottom Line
Fleet managers who build province-specific pricing models, revisit contracts signed at the peak, and keep an eye on the global shipping and geopolitical backdrop will be better positioned than those relying on national averages alone. In a market this unpredictable, specificity is your best budgeting tool.