WCS Trades $12 Under WTI at $56.23 as Trans Mountain Runs Near 890,000 Bpd Ceiling

Western Canadian Select changed hands at $56.23 per barrel on Thursday, roughly $12.29 below West Texas Intermediate, per Oil Authority's live oil prices tracker. WTI for August delivery traded at $68.52 per barrel on the CME, down 0.25 percent on the day. Brent for the front month held at $71.80 per barrel on ICE, up 0.32 percent. The heavy-oil discount that once punished Alberta producers has stayed structurally tighter since the Trans Mountain expansion opened new coastal egress.

Trans Mountain Runs Near Its 890,000 Bpd Ceiling

The Trans Mountain expanded system carries up to 890,000 barrels per day from Alberta to the British Columbia coast, per the Canada Energy Regulator. Trans Mountain Corp tripled the line from its former 300,000 barrel-per-day capacity when the expansion entered service in 2024. The system has run near full through 2026, its highest utilization since startup. Trans Mountain Corp is now weighing another 90,000 barrels per day of throughput using drag reduction agents, subject to shipper commitments.

The company launched an open season in April for 72,000 barrels per day of additional capacity. A successful subscription would lift the share of capacity under long-term contract to 90 percent from 80 percent. Firmer contracting signals that shippers expect the coastal route to stay economic against US Gulf Coast alternatives.

RBC and CAPP See the Discount Anchored Near $12

RBC Capital Markets estimates the WCS discount has shrunk by about $4, or 23 percent, over the past year as pipeline congestion eased. The Canadian Association of Petroleum Producers expects the differential to settle around US$12 per barrel as oil sands output climbs. Alberta pumped a record 4.2 million barrels per day in March, according to Alberta Energy Regulator data, up 3.6 percent from a year earlier. Wider takeaway capacity has kept the gap from blowing out despite that rising supply.

What a Tighter Discount Means for CNRL, Cenovus, and Suncor

The math favors producers directly. At the province's record output, each dollar the WCS discount narrows keeps roughly $4.2 million per day, close to $1.5 billion per year, with Canadian sellers rather than US Gulf Coast refiners. WCS and WTI both price in US dollars, while Canadian producers book revenue in Canadian dollars, so a firmer greenback amplifies the gain. Canadian Natural Resources Limited, Cenovus Energy, and Suncor Energy Marketing all contribute barrels to the WCS blend.

Imperial Oil Ties the Discount Back to ExxonMobil

Imperial Oil sits at the center of the parent-subsidiary story. ExxonMobil owns roughly 69.6 percent of Imperial, whose Kearl and Cold Lake operations produce heavy crude priced off the WCS benchmark. A narrower discount therefore lifts ExxonMobil's Canadian earnings without a single extra barrel drilled. Suncor runs the Syncrude project and the Petro-Canada retail network, so the same differential feeds its downstream margins as well.

Global Crude Softness Trims Alberta Netbacks

Global benchmarks have drifted lower as Strait of Hormuz flows normalized and barrels returned to the market. Oil Authority reported this week that US crude draws failed to lift Brent past the low $70s as Gulf supply expanded. A softer WTI pulls down the absolute WCS price even when the differential holds, trimming Alberta netbacks. Henry Hub natural gas, a separate revenue stream for gas-weighted producers, traded at $3.204 per MMBtu on the CME on Thursday, up 0.25 percent.