The operator of the Keystone Pipeline says a crack along a weld caused an oil leak in southeast North Dakota earlier this ...

A fatigue crack in the Keystone Pipeline led to an oil spill in North Dakota earlier this year that released thousands of ...

President Donald Trump has reignited interest in the construction of the Keystone pipeline, calling for an "immediate start" on the project. Plans to build the Keystone XL pipeline in Montana and ...

President Trump is calling for the completion of the Keystone XL pipeline, the controversial oil pipeline canceled by ...

A federal judge has stopped further work on the Keystone XL pipeline, saying a recent supplemental environmental review conducted by the State Department did not meet the standards required by federal ...

Nebraska regulators have approved TransCanada’s controversial Keystone XL pipeline, but not its preferred route through this state — raising questions about whether the company will continue to pursue ...

A pipeline marker shows where the Keystone Pipeline is buried near Walhalla, North Dakota. The pipeline, now operated by South Bow, leaked on Tuesday at a site in Barnes County, North Dakota. (Amy ...

BISMARCK, N.D. (AP) — The nearly 2,700-mile Keystone oil pipeline was shut down Tuesday morning after it ruptured in North Dakota, halting the flow of millions of gallons of crude oil from Canada to ...

BISMARCK, N.D. — The nearly 2,700-mile Keystone oil pipeline was shut down Tuesday morning after it ruptured in North Dakota, halting the flow of thousands of gallons of crude oil from Canada to ...

An environmental impact report on the proposed Keystone XL Pipeline raised few obstacles to the project Friday, raising the political stakes for the Obama administration as it makes a final ...