Canada’s Oil Discount Hits $25.20 as Brent Pulls Away From WTI
Western Canadian Select for November delivery at Hardisty settled $25.20 a barrel under WTI on Thursday October 8. The WCS discount widened in all six session-over-session steps since September 30, with no narrowing anywhere in the week. The differential is brokerage CalRock’s, as reported by Reuters.
Ten days ago we wrote that the gap worth watching in oil was the one at the top of the chain, between Brent and WTI, and that the leg Canadians actually argue about, WTI less WCS, was close to its own normal. That read has not survived the week.
Put the three prices that matter on matched dates and the shape of it comes out. From September 30 to October 6, the latest day the US Energy Information Administration has published, Brent spot rose 8.22%, from $115.91 to $125.44. WTI at Cushing fell 0.97%, from $97.18 to $96.24, on the EIA’s own basis at both ends. The WTI November futures contract fell 1.08% across the same two dates, from $90.39 to $89.41, on our settlement-window prices at both ends, which puts the two WTI readings within about a tenth of a percentage point of each other. Beneath all of them the WCS discount widened in each of the four steps in between, from $21.60 to $24.95.
Three tiers, and Canada sits at the bottom of all of them. The seaborne benchmark rose more than eight per cent. Everything priced off WTI was slightly lower. The discount Canadian heavy is sold at beneath that widened the whole way. What separates the first tier from the second is seaborne access.
Seven sessions, one delivery month
| Session | WTI Nov | WCS discount | WCS Hardisty |
|---|---|---|---|
| Sep 30 (Wed) | $90.39 | $21.60 | $68.79 |
| Oct 1 (Thu) | $92.94 | $24.10 | $68.84 |
| Oct 2 (Fri) | $91.08 | $24.65 | $66.43 |
| Oct 5 (Mon) | $89.33 | $24.80 | $64.53 |
| Oct 6 (Tue) | $89.41 | $24.95 | $64.46 |
| Oct 7 (Wed) | $88.24 | $25.15 | $63.09 |
| Oct 8 (Thu) | $91.45 | $25.20 | $66.25 |
All figures in US dollars per barrel. The WTI column is the NYMEX November contract, CLX26.NYM, priced in the 2:28 to 2:30 p.m. ET settlement window from Yahoo Finance trade data, which is the exchange’s own settlement method. The discount column is CalRock’s November-delivery assessment at Hardisty, as reported by Reuters. The fourth column is ours, the WTI settlement less that differential, and it moves mostly with WTI: on October 8 the differential moved five cents while the subtraction moved $3.16.
WTI, November contract, settlement-window prices from Yahoo Finance trade data. WCS Hardisty, November delivery, our arithmetic on that settlement less the CalRock differential reported by Reuters. Both lines in US dollars per barrel, September 30 to October 8, 2026.
WTI’s own path across the week was close to a round trip. It settled $90.39 on September 30, worked down to $88.24 by Wednesday October 7, which is 2.38% below where it started, then jumped $3.21 on Thursday, its largest one-day gain in the table. The discount did not round trip. It widened in all six steps and by $3.60 in total, including on Thursday, when WTI gained the most and the differential still went the other way.
How wide $25.20 is against Alberta’s own record
Bars: WTI less WCS, monthly averages of realised prices, Government of Alberta, January 2018 to August 2026, in US dollars per barrel. Line: the single-day November-delivery quote of $25.20 on October 8, 2026, which is a forward quote and not a monthly average.
The Government of Alberta’s oil price data gives monthly averages of realised WTI and WCS prices in US dollars, 260 observations back to January 2005, and its public WCS oil price dashboard is where the series lives. The most recent month in it is August 2026, which averaged a differential of $15.69 on WTI of $83.90 and WCS of $68.21. The last month to average $25.20 or wider was December 2023, at $26.42. The only other months since the start of 2023 at or above that mark are January 2023 at $28.18 and February 2023 at $25.67. Across the 32 months from January 2024 through August 2026, nothing reached $21, and the widest in that stretch was $20.38 in January 2024. The 2015 to 2025 median is $13.84, the trailing twelve-month average is $14.31, and the widest month in the series is November 2018 at $45.93, one of several that cleared this level through 2018 and again around the turn of 2022 into 2023. Nothing after December 2023 crosses the reference line.
Alberta averages realised prices across a calendar month and the $25.20 is one day’s forward quote for November delivery, which makes them different measurements. Even so, no month since December 2023 has averaged a discount as wide as Thursday’s quote.
Reuters makes the comparison that holds the position in the trading cycle constant: the discount “remains more than $10 wider than it was at this point in last month’s trading cycle.” Rory Johnston of the Commodity Context newsletter, also quoted by Reuters, said the WCS differential at Houston is “the steepest since January 2023”. Houston sits at a different point in the chain from Hardisty, and the two discounts are not the same number.
The spot gap above it is among the widest on record
On the EIA’s daily Europe Brent spot price series, the October 6 gap between Brent and WTI at Cushing was $29.20, against $18.73 on September 30. It did not get there in a line: the gap narrowed to $15.05 on October 1, blew out to $37.62 on October 2, then narrowed in each of the two sessions after that.
At $29.20 the October 6 reading is the 7th widest of 8,410 paired daily readings going back to May 1987. The company it keeps is April 20, 2020, at $54.34, the day WTI settled negative, then October 2 of this year at $37.62, September 25 at $30.78, September 23 and September 2 of 2011 at $29.59 and $29.47, and October 5 at $29.38, three of the six inside the past two weeks. Counting sessions at or above $25, 2011 has 34, 2020 has one and 2026 has seven. The annual average gap was $3.93 in 2024 and $3.58 in 2025, against $9.01 so far in 2026. The 2011 comparison only works with its caveat attached, and the caveat is our reading: that year was a Cushing storage glut holding WTI down, where 2026 is a seaborne supply shock pushing Brent up, the same number by the opposite mechanism.
On October 8 the December Brent contract settled $104.28 and December WTI $90.71, a gap of $13.57 against the $29.20 of spot, both December figures our settlement-window prices. Set each grade against itself instead, spot on October 6 and the December contract on October 8, and on our subtraction Brent’s prompt barrel carries about $21 over its December price where WTI’s carries about $5.50, which puts the premium on an immediate barrel close to four times higher in the seaborne grade.
What Reuters reports is widening it
Reuters attributes the move to four things. Tanker freight is at record highs following the attacks on shipping that began with the US-Iran war in late February 2026, which traders told Reuters has made re-exporting Canadian heavy barrels off the US Gulf Coast “cost-prohibitive”. Canadian export pipelines are essentially full, leaving few options to absorb oil sands production. Production into that constraint is strong. And Venezuelan heavy crude is increasingly competing for the same US Gulf Coast buyers.
Only the first of those four is a global event, and this reading is ours: full export pipelines and strong oil sands production are features of how Canadian crude reaches market, and together with Venezuelan barrels pressing on the same Gulf Coast buyers they are the reason a freight shock reaches the Canadian barrel at all. Given that, the symmetry follows. The shock bidding up the seaborne benchmark is the same force widening the discount on the landlocked one, because a barrel that cannot economically leave the Gulf Coast is worth less at Hardisty no matter how high Brent goes. It reaches Canadian heavy producers twice over. They are not paid the benchmark that is rising, and the shock deepens the discount they are paid beneath it.
What the energy equities did
| Sep 30 | Oct 8 | Change | |
|---|---|---|---|
| iShares S&P/TSX Capped Energy (XEG) | $28.01 | $29.07 | +3.78% |
| Suncor (SU) | $96.50 | $100.89 | +4.55% |
| Canadian Natural (CNQ) | $66.93 | $69.84 | +4.35% |
| Vermilion (VET) | $16.19 | $16.88 | +4.26% |
| Cenovus (CVE) | $44.24 | $44.77 | +1.20% |
| Imperial Oil (IMO) | $175.00 | $174.74 | -0.15% |
| S&P/TSX Composite | 35,235.90 | 35,145.40 | -0.26% |
Toronto closing prices in Canadian dollars from Yahoo Finance, September 30 to October 8, the same window as the crude table. These are price changes, not total returns. The names are a cross-section of Canadian energy, five large oil and gas producers, one of which has significant international production, alongside the sector ETF and the index itself.
Energy equities rose 3.78% across the window. The discount beneath the benchmark widened $3.60 across the same seven sessions.
A barrel price and a share price are different questions, and the second is a company-by-company one: our Canadian energy stocks page is where we work through the Canadian names. The general reason the two can come apart is that a share price answers to expected cash flows over years rather than to one week of realised barrels, which our guide to what moves a stock price works through.
Disclaimer: The content on bestcanadianstocks.ca is for informational and entertainment purposes only and does not constitute financial advice. Past performance is not indicative of future results. Always consult a qualified financial advisor before making investment decisions. The WCS differential is brokerage CalRock’s assessment for November delivery at Hardisty, as reported by Reuters, and is credited to them in plain text. The WTI prices are the November NYMEX contract CLX26.NYM, priced by us in the 2:28 to 2:30 p.m. ET settlement window from Yahoo Finance trade data, which is the exchange’s own settlement method; the December Brent and WTI contracts of October 8 are priced the same way. The WCS Hardisty column is our arithmetic, the WTI settlement less the reported differential, and is labelled as ours in the article. Brent and WTI spot prices and the gap between them come from the US Energy Information Administration’s daily Europe Brent Spot Price FOB and Cushing OK WTI Spot Price FOB series, whose latest published reading is October 6, 2026; the 8,410-session ranking back to May 1987 is our calculation on those two series. Monthly realised WTI and WCS averages are the Government of Alberta’s OilPrices data, 260 monthly observations back to January 2005, latest month August 2026, and the median, trailing-twelve-month and record figures are our calculation on that series. Toronto closing prices are from Yahoo Finance and are price changes, not total returns. Every comparison in the daily table prices both legs on the November delivery month, with no contract roll spliced in.
