A U.S. probe into the 13,000-barrel oil spill on TC Energy’s Keystone pipeline is expected to cut into crude flows ahead of the summer driving season.

TC Energy Corp.’s Keystone XL oil-sands pipeline was dealt a setback with a judge’s ruling that the U.S. Army Corps of Engineers improperly approved a streamlined permit process without fully evaluating the impact on endangered species.

LINCOLN, Neb. — A federal judge has ordered the U.S. State Department to conduct a more thorough review of the Keystone XL pipeline’s proposed pathway after Nebraska state regulators changed the route, raising the possibility of further delays to a project first proposed in 2008.

President Trump is making good on his promise to approve the Keystone XL oil pipeline — but the fight is far from over.

President Trump took steps to advance construction of the Keystone XL and Dakota Access oil pipelines while foreshadowing a renegotiation of terms and insisting that developers use U.S. steel.

TransCanada Corp. opened one of the largest trade appeals ever brought against the United States, seeking to recoup $15 billion tied to the Obama administration’s rejection of the Keystone XL oil pipeline.

President Obama rejected TransCanada Corp.’s bid to build the Keystone XL pipeline, ending seven years of debate over an infrastructure project that swelled into one of the most contentious environmental issues of his presidency.

TransCanada Corp.’s request to pause a U.S. review of its Keystone XL oil pipeline gives President Obama a way to ease a political headache at home and help him repair frayed relations with Canada.