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HollyFrontier Navajo Refining LLC

Cases in this directory naming this respondent: 1. Penalties in those cases total $33,916,450.00 (the full case penalty as recorded in ICIS, including any shares of co-defendants in the same case).

The name is shown exactly as listed in EPA's ICIS records. This page reports concluded enforcement cases — settlements and final orders — not allegations.

Enforcement cases

Company / respondentCaseLawCivil penalty assessedSettlement enteredSource
HollyFrontier Navajo Refining LLC
HF SINCLAIR NAVAJO REFINING LLC (ARTESIA) — Artesia, NM
Cited: New Source Performance Standard; Operation And Maintenance; Work Practice Standards
HollyFrontier Sinclair Navajo-Artesia,NM Refinery-Air Toxics Consent Decree-FY2025
Case 06-2021-3400
CAA$33,916,450.002025-05-27ECHO case report
Total of all 1 cases in this group$33,916,450.00

Showing the top 1 of 1 cases in this group. Group total (all 1): $33,916,450.00 in civil penalties assessed. The full list and CSV export come with the paid plan — see Pricing.