Source data
Trans Mountain capacity and throughput milestones
Sources checked
- 01System capacity
890000 · Barrels per day following expansion Source 1
- 02Committed capacity
707500 · Barrels per day available to long-term committed shippers Source 1
- 03Uncommitted capacity
182500 · Barrels per day available on a monthly basis Source 1
- 04First full month’s throughput
704000 · Average barrels per day, June 2024 Source 1
- 05Highest throughput in the snapshot
793000 · Average barrels per day, March 2025 Source 1
- 06Average system utilisation
82% · June 2024 to June 2025 Source 1
Committed and uncommitted allocations add up to the expanded system’s stated capacity.
Trans Mountain capacity and throughput milestones
Barrels per day are daily rates. Monthly throughput is a monthly average. Capacity, throughput and utilisation are distinct measures.
| Source | |||
|---|---|---|---|
| System capacity | 890,000 | Barrels per day following expansion | Source 1 |
| Committed capacity | 707,500 | Barrels per day available to long-term committed shippers | Source 1 |
| Uncommitted capacity | 182,500 | Barrels per day available on a monthly basis | Source 1 |
| First full month’s throughput | 704,000 | Average barrels per day, June 2024 | Source 1 |
| Highest throughput in the snapshot | 793,000 | Average barrels per day, March 2025 | Source 1 |
| Average system utilisation | 82% | June 2024 to June 2025 | Source 1 |