The Canadian government would have to play a significant role in any project to build new oil pipelines in Canada to overcome regulatory, financial and political hurdles and activist opposition, industry experts said.

US President Donald Trump said Monday he wanted to revive the Keystone XL oil pipeline, even though its developer has already walked away from the project.

President Trump said late Monday that he wants the Keystone XL oil pipeline built and pledged easy regulatory approvals for the project, whose permit was revoked by the Biden administration. Trump said in a post on his social media network that the project was "viciously jettisoned by the incompetent Biden

The Canadian energy sector has proposed several major oil pipeline projects in the last decade, but only the Trans Mountain expansion project was completed.