What’s the story?

Washington's August Venezuela oil announcement, including preferential purchase rights, gives Canadians a fresh reason to ask what bargaining power they have with their largest oil customer. [1]

The question sounds simple: why should Canada sell discounted oil to America at all? But a discount is a comparison between prices, not necessarily a favour granted to another government.

This is a hypothetical policy analysis, not a report that Canada has announced an end to discounted sales. It explores two different possibilities: improving export prices through stronger competition, and restricting U.S. sales without first securing alternatives.

Why does it work this way?

Western Canadian Select, or WCS, is a heavy-oil benchmark; West Texas Intermediate, or WTI, is a light-oil benchmark. The Canada Energy Regulator explains that WCS typically sells for less because it is more costly to refine and because moving it to the comparison market costs money. They are not identical products at the same location. [2]

Pipeline bottlenecks can add another penalty. The CER's 2026 analysis says constrained export capacity has widened Canadian price differentials, reducing producer and government revenues. [3]

There is evidence that access matters. In its September 2025 assessment, the CER reported that the WCS-WTI gap averaged about US$18.70 per barrel from September 2023 through April 2024. Following the Trans Mountain expansion, it averaged roughly US$12 from June 2024 through July 2025. These are historical period averages, not today's quotes. [2]

The gap narrowed; it did not vanish. Treating the entire difference as an American discount to be abolished confuses transport and crude quality with the additional loss caused by limited options.

What comes next?

Scenario one: more buyers compete for Canadian barrels.

If producers gain commercially attractive alternatives, they can negotiate from a stronger position. What matters is the amount left after transportation and other selling costs—the netback—not the highest headline price offered at a distant port.

The CER's 2026 report says western Canada's export network was built primarily around U.S. demand. Trans Mountain provides direct marine access to global markets, but that access does not instantly replace the rest of the network. [3]

Scenario two: Canada restricts U.S. exports before alternative capacity and customers are ready.

Petro.UNO's analysis: some American refiners could face higher replacement costs. Canadian sellers could also lose sales, accumulate inventories or reduce production. Pressure would fall on both sides, and its size would depend on the restriction's scope, duration, contracts and available substitutes.

A demanded price only becomes revenue when someone buys at that price. Cutting off a customer does not create a ship, pipeline or replacement contract.

That is why diversification and a sudden cutoff should not be presented as the same strategy. One expands the seller's choices. The other tests how long both parties can tolerate disruption.

Why should you care?

For workers and producing provinces, stronger realized prices could support business income, investment and public revenue. Those benefits would vary with production costs, royalty arrangements and company decisions; they would not turn into an equal payment to every Canadian.

For American drivers, supply disruption could increase pressure on fuel costs in affected markets. That is a possible consequence, not a cents-per-gallon forecast.

For Canadian drivers, earning more on exported crude does not automatically mean cheaper gasoline at home. Crude is only one input in a pump price that also reflects refining, distribution, marketing and taxes. [4] A policy that improves producer revenue and one that lowers household fuel bills are different objectives.

Petro.UNO's judgment: Canada's stronger argument is to reduce avoidable losses from limited access and build credible alternatives. Erasing every benchmark difference is not a realistic measure of success.

The question to put to politicians is specific: how much more would Canadian sellers keep after costs, how quickly could the plan work, and who would bear the disruption while it is built?