The Keystone pipeline had its worst day on December 7, 2022, when a rupture near Washington, Kansas sent crude into Mill Creek. The amount, per the EPA: approximately 543,000 gallons - about 12,937 barrels [1]. The agency's own description of the event does not hedge. It was 'one of the largest inland oil spills in recent history, and the largest discharge ever from the Keystone Pipeline system' [1].
On Friday, July 10, the EPA and the Justice Department announced how it ends. The owner-operator, South Bow - the pipeline company spun off from TC Energy - agreed to a civil penalty of more than $26 million, about $40 million in preventive measures to reduce the risk of future spills, and more than $3 million to the state of Kansas for natural-resource restoration [1]. Local coverage put the total package at roughly $69 million [3].
Two features of the settlement are worth stating plainly, because they are the parts that travel least. The first is timing: the largest spill in the system's history was resolved on a Friday, the traditional slot for news an institution would rather see land softly [1]. The second is proportion. Set the headline numbers side by side as the settlement itself lists them - 543,000 gallons into the creek, the largest discharge in the system's history, and a civil penalty of $26 million, with a little over $3 million marked for restoring the natural resources that were harmed [1].
The settlement is not yet final. The consent decree was filed in the US District Court for the District of Kansas and carries a 30-day public comment period before a judge decides whether to enter it [1]. Until then it is a proposal, and the window to weigh in is open.
The reason to record all of this is not that the penalty is uniquely small - it is that the event it settles is uniquely large, and pipeline-expansion arguments rarely carry the largest data point next to the claim. 'Modern pipelines are safe' is a position that can be argued. It should be argued next to the Keystone system's own worst case: 543,000 gallons into a Kansas creek, and a Friday settlement that priced it [1][3].
