Energy infrastructure company TC Energy said on Wednesday it had terminated the $9 billion Keystone XL pipeline project, months after US President Joe Biden revoked a key permit in a blow to Canada's oil sector.

Keystone XL, which would have been under construction this year, was expected to carry 830,000 barrels per day of Alberta oil sands crude to Nebraska.

But opposition from US landowners, Native American tribes, and environmentalists had delayed the project for the past 12 years, with Biden pledging to scrap the permit, which he did on his first day in office.