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The Keystone Pipeline has transported over 3 billion barrels of crude oil from Canada to U.S. refineries since 2010. Keystone's accident history is similar to other pipelines, but the severity of its spills has worsened in recent years due to 2 large spills in 2017 and 2019.
The U.S. depends on pipelines to deliver the natural gas, oil, and other hazardous liquids that power vehicles, heat homes, and more. But cyberattacks, such as an attack on Colonial Pipeline's IT networks in May 2021, threaten pipeline security.