The 2,689-mile Keystone Pipeline carries crude oil from Alberta, Canada, to refineries in Illinois, Oklahoma and Texas.

A herd of African elephants instinctively formed an "alert circle" to protect the younger elephants at the San Diego Zoo Safari Park as a 5.2-magnitude earthquake shook Southern California on Monday.

The Keystone oil pipeline is operating again after a spill in North Dakota caused operations to pause last week. The Keystone ...

The U.S. Pipeline and Hazardous Materials Safety Administration announced on April 14 that South Bow restarted the pipeline ...

The Keystone Pipeline has resumed operations a week after a section of the pipeline ruptured and spilled 3,500 bbl of crude oil in North Dakota, according to a notice from the federal Pipeline and ...