ARTESIA REFINERY

Artesia Refinery, a petroleum refining facility at 501 East Main Street, Artesia, NM (EPA Registry ID 110000472630), operates under HF Sinclair Navajo Refining LLC, a subsidiary of HF Sinclair Corp. EPA ECHO records show 8 quarters with noncompliance over the trailing 24 months and approximately $13.57 million in allocated penalties over that period, derived from a 5-year total of $33,916,450 [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip] [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm]. The facility carries active Clean Air Act, Clean Water Act, and RCRA major-facility designations and is flagged Grade F (23/100) in PollutionScan's aggregated compliance scoring [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm].

Two events define the trailing 24 months. First, in April 2025, a federal consent decree was lodged in the U.S. District Court for the District of New Mexico, resolving alleged Clean Air Act, NSPS Subpart QQQ, and NESHAP Subpart FF (BWON) violations tied to benzene waste operations and refinery wastewater systems [source: https://www.epa.gov/system/files/documents/2025-04/hfsnr-artesia-lodged-consent-decree.pdf] [source: https://www.justice.gov/archives/opa/pr/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions-artesia]. Second, on October 31, 2025, an explosion at the refinery injured three workers and triggered a shelter-in-place advisory across Artesia [source: https://www.krqe.com/news/new-mexico/artesia-police-on-scene-of-explosion-at-oil-refinery/] [source: https://www.artesianews.com/explosion-reported-at-navajo-refinery/]. Those two events together drew sustained regulatory and community attention to a third problem: the nearest New Mexico Environment Department (NMED) ambient air monitors serving the Permian Basin sit in Carlsbad and Hobbs, leaving the refinery fence line in Artesia without dedicated measurement coverage. A coalition formally raised that gap with NMED in November 2025 [source: https://sourcenm.com/briefs/coalition-calls-for-nm-environment-agency-to-address-artesia-oil-refinery-explosion-aftermath/].

The Artesia Refinery's compliance record is dominated by Clean Air Act matters, with secondary Clean Water Act and RCRA exposure. EPA ECHO and PollutionScan aggregations show 7 inspections, 11 violation quarters over the trailing 3-year window, and 2 formal enforcement actions, with a 5-year penalty total of $33,916,450 [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm]. ECHO's 24-month derivation yields 8 quarters with noncompliance and approximately $13.57 million in allocated penalties [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. The facility's FRS record confirms its status as a multi-program major source under EPA's integrated compliance data [source: https://frs-public.epa.gov/ords/frs_public2/fii_query_detail.disp_program_facility?p_registry_id=110000472630].

The past 24 months trace a clear arc. In June 2023, EPA and NMED conducted a site visit that identified alleged additional violations of the NESHAP for Benzene Waste Operations (40 C.F.R. Part 61, Subpart FF, known as BWON) and New Source Performance Standards Subpart QQQ — findings layered onto earlier Post-Inspection Notices already in the docket [source: https://www.epa.gov/system/files/documents/2025-04/hfsnr-artesia-lodged-consent-decree.pdf]. Those findings fed directly into the April 2025 settlement. EPA, the Department of Justice, and NMED lodged a proposed consent decree with HF Sinclair Navajo Refining LLC resolving alleged Clean Air Act and New Mexico Air Quality Control Act violations; the decree requires capital investments in pollution controls and community programs directed at nearby residents, including students at Roselawn Elementary [source: https://www.epa.gov/newsreleases/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions] [source: https://www.justice.gov/archives/opa/pr/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions-artesia]. NMED issued the most recent permit action on September 24, 2025, per ECHO metadata [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip].

Six weeks after that permit action, on October 31, 2025, an explosion at the refinery injured three workers. Artesia Police and HF Sinclair confirmed the incident under control later that day, but news reporting documented a visible smoke plume drifting across the city and a shelter-in-place advisory for surrounding neighborhoods [source: https://www.krqe.com/news/new-mexico/artesia-police-on-scene-of-explosion-at-oil-refinery/] [source: https://www.spaglaw.com/blog/2025/11/explosion-at-hf-sinclair-navajo-refinery-in-artesia-new-mexico-three-injured/]. On November 21, 2025, a coalition of community and environmental groups formally requested that NMED Secretary James Kenney address the aftermath, citing the absence of dedicated air monitoring near the Artesia fence line; NMED operates Permian Basin monitors in Carlsbad and Hobbs only [source: https://sourcenm.com/briefs/coalition-calls-for-nm-environment-agency-to-address-artesia-oil-refinery-explosion-aftermath/]. The Roswell Daily Record amplified the monitoring-gap finding in December 2025 coverage [source: https://www.rdrnews.com/news/local/artesia-refinery-explosion-brings-call-for-air-monitoring/article_c3d65f9b-79ff-4ac3-b9a3-8d4dd9636d0a.html]. That gap matters because without fence-line data, post-incident exposure assessments for Artesia residents rest on monitors located 40 or more miles away.

Consent Decree — Lodged April 2025 (U.S. District Court for the District of New Mexico). Parties: United States (EPA/DOJ), State of New Mexico (NMED), and HF Sinclair Navajo Refining LLC. Programs: Clean Air Act (NSPS Subpart QQQ; NESHAP Subpart FF — Benzene Waste Operations) and New Mexico Air Quality Control Act. The decree recites EPA and NMED issuance of Post-Inspection Notices for a subset of alleged violations and a June 2023 site visit identifying additional alleged BWON and NSPS QQQ violations. HFSNR agrees that the Artesia Refinery is covered by the decree and commits to capital investments in pollution controls and programs to reduce health impacts on nearby residents [source: https://www.epa.gov/system/files/documents/2025-04/hfsnr-artesia-lodged-consent-decree.pdf] [source: https://www.justice.gov/archives/opa/pr/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions-artesia] [source: https://www.epa.gov/newsreleases/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions].

Historical Consent Decree Context — A prior federal consent decree in the EPA docket references numerous violations of emission limits at the fluid catalytic cracking unit (FCCU) at the Artesia Refinery and a July 27, 2001 NMED compliance order [source: https://www.epa.gov/sites/default/files/documents/navmontcd.pdf]. That earlier record supplies direct regulatory continuity for the NSPS and NESHAP allegations that resurfaced in the 2025 decree, showing that FCCU-related and wastewater-system violations at this specific facility predate the current ownership structure by more than two decades.

Aggregate 24-Month Enforcement Totals — EPA ECHO: 8 violation quarters; approximately $13,566,580 in allocated penalties (derived as 5-year total × 24/60) [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. PollutionScan compilation: 2 formal actions, 11 violation quarters over 3 years, 5-year penalty total $33,916,450, Grade F (23/100) [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm].

October 31, 2025 Incident — An explosion at the HF Sinclair Navajo Refinery injured three workers and prompted a shelter-in-place advisory for nearby residents. Artesia Police declared the incident under control the same day [source: https://www.artesianews.com/explosion-reported-at-navajo-refinery/] [source: https://www.krqe.com/news/new-mexico/artesia-police-on-scene-of-explosion-at-oil-refinery/] [source: https://www.spaglaw.com/blog/2025/11/explosion-at-hf-sinclair-navajo-refinery-in-artesia-new-mexico-three-injured/]. Regulatory follow-up from NMED was formally requested by a community coalition on November 21, 2025 [source: https://sourcenm.com/briefs/coalition-calls-for-nm-environment-agency-to-address-artesia-oil-refinery-explosion-aftermath/]. That request remains open as of the date of this briefing, and no NMED response has been captured in the source bundle.

Artesia Refinery (501 East Main Street, Artesia, NM 88210; EDDY COUNTY; EPA Registry ID 110000472630) is the sole facility in this briefing. ECHO and FRS identify it as an active Clean Air Act major source with concurrent Clean Water Act and RCRA Hazardous Waste designations [source: https://frs-public.epa.gov/ords/frs_public2/fii_query_detail.disp_program_facility?p_registry_id=110000472630] [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm]. Over the most recent 3-year compliance grid, PollutionScan shows continuous Clean Air Act violation-flag quarters, a shift from 'no violation' to 'violation/SNC' in the Clean Water Act lane, and persistent violation coding in the RCRA lane [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm]. The NMED RCRA permit docket, EPA ID NMD048918817, confirms hazardous-waste management obligations under the HollyFrontier Navajo Refining LLC legal predecessor [source: https://www.env.nm.gov/wp-content/uploads/sites/12/2017/03/Draft_NRC_Permit-Parts-4-28-2017.pdf]. That predecessor designation matters for continuity: the regulatory obligations attached to the Artesia site, not to the corporate name on the permit, and they transferred through the HollyFrontier-to-HF Sinclair rebranding intact.

The facility's fence-line air quality profile has drawn independent scrutiny beyond the federal enforcement record. The Artesia Refinery appeared in a 2021 refinery air-toxics study as one of 13 U.S. refineries flagged for elevated fence-line benzene readings [source: https://eu.usatoday.com/story/news/local/2021/05/27/artesias-navajo-refinery-one-most-air-polluting-oil-and-gas-sites/5152980001/]. That finding predates the June 2023 EPA/NMED site visit by two years, establishing a documented baseline for benzene concerns at this address. HF Sinclair's Q1 2026 earnings call referenced the Artesia asset within its Southwest crude-gathering footprint, characterizing the broader U.S. refining complex in commercial terms [source: https://www.investing.com/news/transcripts/earnings-call-transcript-hf-sinclair-q1-2026-beats-eps-forecast-stock-dips-93CH-4653347]. The earnings-call framing and the compliance record describe the same physical facility from different vantage points.

Benzene (CAS 71-43-2) — A NESHAP Subpart FF (BWON) regulated hazardous air pollutant. EPA classifies benzene as a known human carcinogen. At petroleum refineries, the primary fugitive-emission pathway targeted by BWON is the wastewater collection and treatment system, where benzene volatilizes from process water before it can be captured or destroyed. That is precisely the regulatory target of the April 2025 consent decree's BWON allegations at Artesia [source: https://www.epa.gov/system/files/documents/2025-04/hfsnr-artesia-lodged-consent-decree.pdf]. A 2021 study placed the Artesia Navajo Refinery among 13 U.S. refineries with elevated fence-line benzene readings [source: https://eu.usatoday.com/story/news/local/2021/05/27/artesias-navajo-refinery-one-most-air-polluting-oil-and-gas-sites/5152980001/].

Volatile Organic Compounds (VOCs) from process equipment leaks and wastewater — NSPS Subpart QQQ governs VOC emissions from petroleum refinery wastewater systems and was cited in both the June 2023 site-visit findings and the April 2025 lodged decree [source: https://www.epa.gov/system/files/documents/2025-04/hfsnr-artesia-lodged-consent-decree.pdf]. EPA's settlement release frames the decree as addressing 'climate- and health-harming emissions,' bracketing VOCs alongside criteria pollutants [source: https://www.epa.gov/newsreleases/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions]. VOC emissions from wastewater systems are diffuse and difficult to monitor at the fence line — which makes the NMED monitoring gap identified by the November 2025 coalition petition directly relevant to this pollutant category as well.

Fluid Catalytic Cracking Unit (FCCU) criteria pollutants — NOx, SO2, and particulate matter from FCCU stacks were the subject of prior emission-limit violations documented in the earlier Navajo consent decree filed in the U.S. District Court for the District of New Mexico [source: https://www.epa.gov/sites/default/files/documents/navmontcd.pdf]. Inhalation of these pollutants in ambient air is the primary exposure pathway for nearby residents. Community commentary has specifically cited Roselawn Elementary, referenced in the DOJ release describing the 2025 settlement's health-impact programs [source: https://www.justice.gov/archives/opa/pr/hf-sinclair-navajo-agrees-settlement-reduce-climate-and-health-harming-emissions-artesia]. Environmental justice implications: ECHO reports an ej_index_avg of 0.0 in the extract, a value that reflects data-pull limitations rather than absence of community exposure. Independent community-impact analyses describe demographic vulnerability around the Artesia facility [source: https://pgeproject.wordpress.com/2021/04/29/hollyfrontier-navajo-artesia-new-mexicos-oil-refinery-and-its-affect-on-the-nearby-community-of-color/]. The ECHO figure should be read alongside those independent analyses rather than in isolation.

Within the adjacent NAICS 324199 peer row, EES Coke Battery L.L.C. matches Artesia Refinery's 24-month violation-quarter count (8) but carries a materially higher allocated penalty total — $40.3 million against Artesia's $13.57 million — per ECHO's derivation [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. The violation-count parity with a higher-penalty peer suggests that penalty magnitude at Artesia reflects the specific regulatory programs cited rather than a lower frequency of noncompliance. Artesia's 5-year cumulative penalty total of $33.9 million, as aggregated by PollutionScan, places it in the upper decile of petroleum-refinery ECHO penalty profiles [source: https://pollutionscan.com/facility/110000472630/artesia-refinery-artesia-nm]. Historical EPA refinery-sector settlements provide useful scale context: the multi-refinery Tesoro Clean Air Act settlement reached $425 million, and the Martinez follow-on alone totaled $27.5 million [source: https://www.epa.gov/archive/epa/newsreleases/epa-and-doj-announce-settlement-tesoro-clean-air-act-violations-martinez-refinery.html] [source: https://epa.gov/newsreleases/tesoro-pay-275-million-violating-previous-court-order-requiring-them-reduce-air]. Those figures establish that nine-figure Clean Air Act outcomes are not unusual for refinery enforcement, and that Artesia's $33.9 million 5-year total sits well within the range of documented sector outcomes.

No SEC 10-K or 10-Q filings were provided for Artesia Refinery or HF Sinclair Corp. in the research bundle; the facility operates as a subsidiary unit and the parent's filings were not included in the extract. Forward-looking environmental risk for the Artesia facility is therefore framed by three open items. The lodged federal consent decree carries capital-investment requirements and a compliance schedule that will govern facility operations for the duration of the decree's term [source: https://www.epa.gov/system/files/documents/2025-04/hfsnr-artesia-lodged-consent-decree.pdf]. The NMED ambient monitoring question remains unresolved: the coalition's November 21, 2025 petition to Secretary James Kenney requesting fence-line coverage near Artesia had not produced a documented NMED response as of the date of this briefing [source: https://sourcenm.com/briefs/coalition-calls-for-nm-environment-agency-to-address-artesia-oil-refinery-explosion-aftermath/]. Resolution of that monitoring question — in either direction — would materially change the evidentiary basis for future compliance assessments at this address. Third, the October 31, 2025 explosion and associated shelter-in-place advisory create potential follow-on litigation exposure that the source bundle does not yet fully capture [source: https://www.spaglaw.com/blog/2025/11/explosion-at-hf-sinclair-navajo-refinery-in-artesia-new-mexico-three-injured/].