August 2025. Kalibrate's Canadian Petroleum Price Snapshot

Gasoline

Retail gasoline prices in Canada fell a modest 0.4 cents per litre in August as declining crude oil prices were offset by widening gasoline refining margins, resulting in little change in pump prices by the end of the month.

Increased gasoline demand during August, as the summer driving season was in full swing, contributed to expanding refining margins. However, this was balanced by falling crude oil prices, amid concerns over a potential crude oil glut in the coming months, as the Organization of Petroleum Exporting Countries and Allies (OPEC+) is expected to boost production. At the same time, ongoing trade tensions have added more economic uncertainties, which could lead to a reduction in crude oil demand.

In August, Saskatoon, Saskatchewan, experienced the largest increase in gasoline prices in Canada, with retail prices rising by 9.6 cents per litre over the month, ending at 144.3. Prices in the Canadian Prairies were likely influenced by the brief, unexpected weather-related closure of the U.S. Midwest’s largest refinery. Conversely, the largest price decrease occurred in North Bay, Ontario, where prices dropped 9.9 cents per litre, ending the month at 121.7, the lowest price in Canada at the month’s end. Meanwhile, gasoline prices in Canada reached their highest at month’s end in Victoria, British Columbia, at 169.1 cents per litre.

Diesel

Retail diesel prices in Canada dropped in August, decreasing by 4.0 cents per litre over the month.

The crude component accounts for over two-thirds of the diesel pump price and was the primary factor behind lower diesel prices in August. However, diesel prices did not decrease by the full amount that crude oil prices did, as the diesel refining margin component of the price remained elevated due to unusually low North American diesel inventories. As suppliers begin building inventories in preparation for the fall harvest and winter heating seasons, diesel prices are likely to remain elevated for the remainder of the year. In August, diesel prices averaged nearly six cents per litre higher than gasoline prices, which are typically lower at this time of year.

The largest retail diesel price decrease in August occurred in Halifax, Nova Scotia, where prices declined 7.2 cents per litre, ending the month at 149.9. Although nearly all surveyed markets experienced declining diesel prices, there were a couple of exceptions, as diesel prices rose in two markets during August: Yellowknife, Northwest Territories, and Val d’Or, Quebec. The largest increase occurred in Val d’Or, where prices increased 2.3 cents per litre, ending the month at 172.2. At the end of August, the lowest price was recorded in Sarnia, Ontario, at 131.6 cents per litre, while the highest was found in Vancouver, British Columbia, at 179.1 cents per litre.

We conduct a daily survey of retail gasoline, diesel, propane, and furnace fuel prices in 77 Canadian cities.

Canadian petroleum prices are available for download and display using a variety of analytic tools on our website: Charting.kalibrate.com/