ProjectOilGoes south

Enbridge Mainline (existing)

Enbridge's Mainline, the largest system carrying crude oil from western Canada to the United States. At the ex-Gretna point on the Manitoba border it carried 3.08 million barrels a day in 2025 against average available capacity of 3.23 million (95.2% utilization), and it was apportioned (oversubscribed) in most months of 2025 (Canada Energy Regulator).

Status: In service
Direction: South: Carries Canadian output to the United States.
Capacity: 3,230 kb/d
Where: Alberta
Needs new laws?: No: can proceed under existing rules