Trans Mountain Pipeline Hits Utilization Record in April 2026 as Asian Demand Surges on Hormuz Disruptions

Canada's Trans Mountain pipeline system is running at near-full capacity in April 2026, marking the highest utilization rate since its C$34 billion expansion was completed in May 2024. The development underscores growing international demand for Alberta crude as Middle East supply disruptions continue to reshape global oil markets.

Record Utilization Driven by Asian Buyers

Trans Mountain Corporation confirmed in its April 2026 capacity announcement that system utilization is running in the high-90 percent range for the month, a record since the 890,000 barrel-per-day expanded system came online. As recently as last summer, the system averaged approximately 84 percent utilization.

The primary driver is a surge in Asian demand, particularly from China, as buyers seek alternatives to Middle Eastern barrels that have been disrupted by the Iran conflict. With the Strait of Hormuz either closed or operating under restricted conditions for much of early April, refiners in Japan, South Korea, and China have pivoted toward Pacific-delivered Canadian crude.

Alberta oil sands operations averaged 4.2 million barrels per day in the first two months of 2026, the highest on record and 3.3 percent above the same period in 2025. Producers including Suncor Energy, Cenovus Energy, and Canadian Natural Resources have been running at elevated rates to capitalize on the demand environment.

WCS Discount Widens Despite Higher Volumes

Despite the pipeline milestone, Western Canadian Select (WCS) pricing has not kept pace with international benchmarks. WCS for May delivery in Hardisty, Alberta settled at $16.15 per barrel below WTI on April 6, 2026, compared to a $14.60 differential the previous Thursday, according to BOE Report.

The widening discount reflects the paradox facing Alberta producers: record output is straining pipeline allocation even as Trans Mountain runs close to capacity. With Brent crude trading near $93.76 per barrel on April 8 and WTI around $94.41 per barrel after the US-Iran ceasefire triggered a sharp selloff, WCS is effectively trading near $78 per barrel, a price that still represents significant upside versus its 2025 range but is constrained by heavy sour differentials.

The WCS discount is partly attributed to the loss of competing heavy sour supply from Iran, which has historically helped set the global heavy crude price floor. With Iranian barrels off the market, North American refiners with coking capacity have had less incentive to bid up the differential.

Trans Mountain Open Season Signals Further Expansion

Trans Mountain launched a binding open season in late March 2026, inviting shippers to contract firm service on the existing pipeline. The corporation is also evaluating further throughput enhancements including the use of drag-reducing agents (DRA), which the Canada Energy Regulator approved in early 2026. DRA application could increase system capacity by up to 10 percent without new pipe construction.

Indigenous ownership remains a key strategic consideration. A group representing First Nations along the pipeline corridor told Bloomberg in April 2026 that Indigenous equity stake acquisition is central to the long-term viability of any further expansion. Trans Mountain is majority-owned by the federal Crown corporation following the federal government's 2018 acquisition from Kinder Morgan.

Canadian Crude Exports Hit New Records

Canadian crude oil exports shipped from the Westridge Marine Terminal in Burnaby, British Columbia nearly doubled in 2025 to reach a new record, with most of the volume flowing via Trans Mountain to Asia-Pacific markets. This has been transformational for Alberta producers who previously relied almost entirely on US Midwest refineries as their primary market.

For independent producers like ARC Resources and Imperial Oil, full Trans Mountain utilization provides meaningful optionality on crude marketing, allowing some barrels to be diverted toward higher-netback Pacific markets rather than the traditionally discounted landlocked US routes.

Market Outlook

The April 8 US-Iran ceasefire, which triggered a 15-plus percent single-day collapse in WTI and Brent, introduces near-term uncertainty for the Trans Mountain premium story. If the Strait of Hormuz fully reopens under the two-week ceasefire framework and Iranian supply gradually returns to market, some of the urgency driving Asian buyers toward Canadian crude could ease.

However, analysts note that the structural shift in buyer preferences toward diversified supply sources is unlikely to reverse quickly. The Trans Mountain expansion has permanently opened a Pacific gateway for Canadian crude, and the pipeline's April utilization record signals that Alberta's production growth has found a reliable export outlet.

Sources: Trans Mountain Corporation capacity announcement, BOE Report, CBC News, Global News, Bloomberg, Canada Energy Regulator.