Keystone XL pipeline project cancelled by TC Energy after over a decade of delays In this Dec. 18, 2020 photo, pipes to be used for the Keystone XL pipeline are stored in a field near Dorchester, Neb. THE CANADIAN PRESS/AP-Chris Machian /Omaha World-Herald via AP June 09, 2021 - 3:46 PM CALGARY - Another Canadian oil pipeline has bitten the dust after TC Energy Corp. said it was walking away from the Keystone XL pipeline project, ending a decade-plus battle that pitted the energy industry against environmentalists as oilsands producers sought to export Canadian crude. Construction on the pipeline was suspended earlier this year after newly elected U.S. President Joe Biden fulfilled a campaign promise to cancel its presidential permit in January.