Keystone Pipeline, Symbol to Oil’s Foes and Friends, Is Now Dead

TC Energy Corp. has ended its 16-year quest to build the Keystone XL oil pipeline, a controversial cross-border project that became a litmus test for climate activism and was blocked by President Joe Biden.

Calgary-based TC Energy said in a statement it had formally terminated the project after consultation with the government of Alberta in Canada. It had already suspended construction on the pipeline earlier this year, after Biden revoked a presidential permit for the project.

Keystone XL helped galvanize modern climate activism, uniting environmentalists in a battle against the project some described as a “climate dirty bomb.” It ...