Warning Letter involving TESORO HIGH PLAINS PIPELINE COMPANY LLC. PHMSA's enforcement data identifies the cited regulations as 195.116(e), 195.428(d). The case was opened on 2006-03-10 and is reported as closed as of 2006-03-10. Open the official case record for notices, responses, orders, and the latest status.

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Retrieved: Aug 20, 2026
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