Thunder Bay · Ontario

Thunder Bay diesel prices

262.6¢/L-1.7 vs national

NRCan survey print Tue, 27 Oct 2026Ontario average 257.8¢/L

Across the line

Diesel crosses the border, but the number does not. The Canadian side is published per litre and the American side per gallon.

Thunder Bay · Canadian side262.6¢/L

Central Atlantic · the US district next door$6.508/gal

The American figure is the EIA weekly retail survey — published as $6.508/gal this week — shown the way an American carrier reads it, with the Canadian-dollar equivalent beside it once the page loads. A gallon is not a litre, so these two lines measure the same fuel in different units and the cents will never match. What does compare is the market: a load crossing into Central Atlantic buys its fuel on the other side of a border.

Thunder Bay runs 1.7¢ below the national index — a real difference on a 500-litre fill. Work out a trip

Citing this figure

Thunder Bay diesel: 262.6¢/L, NRCan weekly survey print Tue, 27 Oct 2026. Northern Mile Media, dashboard.northernmilemedia.com/diesel-prices/ontario/thunder-bay/

How it is calculated

What drives Thunder Bay prices

Thunder Bay is a Lake Superior port and grain terminal, and it is the western terminus of the Great Lakes St. Lawrence Seaway. Grain moves through the port, and the Seaway position ties the city to water freight across the system. Thunder Bay also sits at the Highway 11 and Highway 17 junction, tying it to the northern Ontario road network. A port and grain terminal at the head of the Seaway, with two highways meeting here, is what shapes the local fuel market, anchoring it to both water and road freight.

Ontario survey cities

¢/L · distance from the provincial mean

Sarnia252.9 -4.9 Windsor253.6 -4.2 Kitchener253.7 -4.1 Barrie255.9 -1.9 Kingston256.4 -1.4 Guelph256.6 -1.2 Hamilton256.7 -1.1 Sudbury256.9 -0.9 London257.0 -0.8 Brantford257.4 -0.4 Oshawa257.5 -0.3 Peterborough257.5 -0.3 North Bay257.9 +0.1 Toronto258.4 +0.6 St. Catharines258.6 +0.8 Timmins260.2 +2.4 Thunder Bay262.6 +4.8 Ottawa262.9 +5.1 Sault Ste Marie265.1 +7.3

Every price is an NRCan survey observation from the print dated Tue, 27 Oct 2026. The provincial figure is the unweighted mean of its survey cities, the same figure that enters the Northern Mile Diesel Index.

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