In Kansas, crews contain largest-yet breach of Keystone Pipeline
The oil spill near Washington, Kansas, prompted operators to shut down an extension of the pipeline, which brings Canadian tar sands crude to U.S. refineries.
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### Instruction: In Kansas, crews contain largest-yet breach of Keystone Pipeline

### Response: The oil spill near Washington, Kansas, prompted operators to shut down an extension of the pipeline, which brings Canadian tar sands crude to U.S. refineries.