FREEMAN, S.D. -- TransCanada officials are still searching for the cause of an oil slick discovered in southeast South Dakota that shut down a major pipeline. A team of about 100 workers assembled by ...

TORONTO — Canadian Prime Minister Mark Carney raised the prospect of reviving the contentious Keystone XL pipeline project with U.S. President Donald Trump during his White House visit this week, a ...

BISMARCK, N.D. (AP) — A fatigue crack in the Keystone Pipeline led to an oil spill in North Dakota earlier this year that released thousands of barrels of oil onto farmland, according to the pipeline ...

WASHINGTON, D.C. — Construction on the long-disputed Keystone XL oil pipeline has been halted as U.S. President Joe Biden revoked its permit. Biden’s Day One plan included revoking a presidential ...

It took 10 months, but water is now flowing naturally in the Kansas creek that was contaminated by an oil spill last year. The U.S. Environmental Protection Agency announced Tuesday that oil recovery ...

BILLINGS, Mont. (AP) — The sponsor of the Keystone XL crude oil pipeline pulled the plug on the contentious project Wednesday after Canadian officials failed to persuade President Joe Biden to reverse ...