HILCORP - HUERFANO UNIT HZMC 1H

Hilcorp Energy Company operates the Huerfano Unit HZMC 1H wellsite in northwestern New Mexico, inside the San Juan Basin — a mature oil and natural gas producing region where late-life assets dominate the landscape. EPA ECHO records show one registered facility tied to this unit and a derived 24-month penalty allocation of $3.76 million, computed by prorating the company's five-year federal penalty total over the trailing 24 months [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. Zero quarters of formal noncompliance were recorded against facility identifier 110055609578 during that window. No active permits appear in the ECHO extract as of May 4, 2026 [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. That $3.76 million figure traces directly to Hilcorp's October 17, 2024 consent decree with EPA and the New Mexico Environment Department — a settlement resolving Clean Air Act and New Mexico Air Quality Control Act claims tied to well completion operations across the company's New Mexico oil and gas sites [source: https://www.epa.gov/enforcement/hilcorp-energy-company-new-mexico-clean-air-act-stationary-source-settlement].

Hilcorp is privately held. No 10-K or 10-Q sits on file with the SEC, so forward-looking environmental risk disclosure is limited to the company's 2025 San Juan regional sustainability publication and its corporate responsibility website [source: https://www.hilcorp.com/wp-content/uploads/2025/05/SJ-2025.pdf] [source: https://www.hilcorp.com/corporate-responsibility/environmental-stewardship/]. The company reports an 81 percent reduction in methane emissions from 2023 to 2024 in the San Juan region — a claim that sits alongside the $9.4 million federal civil penalty Hilcorp agreed to pay for Clean Air Act well-completion violations in the same state [source: https://www.hilcorp.com/wp-content/uploads/2025/05/SJ-2025.pdf] [source: https://www.epa.gov/enforcement/hilcorp-energy-company-new-mexico-clean-air-act-stationary-source-settlement]. Those two data points — the self-reported emissions improvement and the federal penalty — cover overlapping time periods and the same operating geography, a tension the public record does not resolve.

The compliance record for the Huerfano Unit HZMC 1H must be read at two levels: the single wellsite and the parent operator. They tell different stories. At the wellsite level, ECHO data shows zero quarters of noncompliance across the prior eight quarters and no open formal enforcement actions tied to facility identifier 110055609578 [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. At the operator level, Hilcorp Energy Company is a party to an active federal consent decree covering New Mexico oil and gas production operations that include wells in the San Juan Basin [source: https://www.justice.gov/enrd/media/1373866/dl?inline=].

The 24-month chronology begins in mid-2024. On October 17, 2024, EPA and DOJ announced a settlement with Hilcorp resolving Clean Air Act and New Mexico AQCA violations. EPA characterized the matter as the first federal enforcement case against an oil and gas producer for well-completion emission violations [source: https://www.epa.gov/enforcement/hilcorp-energy-company-new-mexico-clean-air-act-stationary-source-settlement]. The complaint, filed in the United States District Court for the District of New Mexico as Civil Action No. 1:24-cv-01055, alleged failures to control volatile organic compound emissions during well completion and flowback [source: https://www.justice.gov/enrd/media/1373861/dl?inline=]. The consent decree sets a $9.4 million civil penalty and layers on injunctive compliance requirements, third-party verification obligations, mitigation projects, and stipulated penalties for future noncompliance [source: https://www.justice.gov/enrd/media/1373866/dl?inline=].

Through 2025 and into 2026, Hilcorp continued drilling and divestiture activity across its broader footprint. A May 2026 report confirmed the company would exit Alaska's Yukon Flats after completing one of two planned wells on Indigenous-owned land — a program that drew opposition from area tribes [source: https://www.northernjournal.com/with-one-of-two-wells-drilled-hilcorp-to-pull-out-of-yukon-flats/]. Separately, firefighters responded to a tank incident at Hilcorp's Fairfield-Unkefer facility in Fairfield Township, Ohio, at 11:18 a.m. on a Monday in late April 2026, per the Ohio Department of Natural Resources [source: https://www.reviewonline.com/news/local-news/2026/04/crews-respond-to-incident-at-hilcorp-2/] [source: https://www.wfmj.com/news/local-news/columbiana_city/crews-respond-to-explosion-near-columbiana-gas-facility/article_e912c6d3-2b82-4b3e-8ec4-9ce88a1fb02b.html]. That Ohio event had no federal enforcement disposition as of the news cycle reviewed. In April 2026, the Alaska House rejected a measure that would have applied state corporate income tax to Hilcorp and other privately held oil producers [source: https://www.adn.com/politics/alaska-legislature/2026/04/13/alaska-house-rejects-measure-to-apply-corporate-income-tax-to-hilcorp-and-other-private-oil-companies/]. Colorado records add a longer-range data point: Administrative Order by Consent, Order No. 1V-436, was issued against Hilcorp at the Myers #21-06CH Well (API 05-041-06072) in El Paso County for alleged violations of Form 2A location assessment conditions of approval [source: https://ecmc.state.co.us/orders/orders/1V/436.html]. That action predates the 24-month window but is relevant to any pattern analysis of the operator's multi-state compliance posture.

Action 1 — Federal Clean Air Act / New Mexico AQCA Consent Decree. Announced October 17, 2024 by EPA and DOJ; filed as United States and New Mexico Environment Department v. Hilcorp Energy Company, Civil Action No. 1:24-cv-01055, D.N.M. [source: https://www.justice.gov/enrd/media/1373861/dl?inline=]. Program: Clean Air Act stationary source provisions and the New Mexico Air Quality Control Act. The allegations center on well-completion operations — specifically the flowback phase following hydraulic fracturing — at Hilcorp's New Mexico production sites [source: https://www.epa.gov/enforcement/hilcorp-energy-company-new-mexico-clean-air-act-stationary-source-settlement]. Outcome: a $9.4 million civil penalty, injunctive compliance requirements, third-party verification, mitigation projects, and stipulated penalties for future deviations [source: https://www.justice.gov/enrd/media/1373866/dl?inline=]. EPA characterized the matter as the first federal case of its kind against an oil and gas producer [source: https://www.epa.gov/enforcement/hilcorp-energy-company-new-mexico-clean-air-act-stationary-source-settlement].

Action 2 — ECHO-derived penalty allocation. The ECHO exporter attributes a pro-rated $3.76 million of five-year federal penalty activity to the Huerfano Unit HZMC 1H under facility ID 110055609578, calculated on a 24-month basis using the derivation penalty_24mo = total_5yr × (24/60) [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. This allocation tracks the New Mexico CAA consent decree described above rather than a separate facility-specific penalty. The distinction matters: the number reflects corporate-level enforcement prorated to a single wellsite record.

Action 3 — Colorado Oil and Gas Conservation Commission (now ECMC) Order No. 1V-436. Administrative Order by Consent issued against Hilcorp Energy Company, Operator Number 10133, concerning the Myers #21-06CH Well (API 05-041-06072) in El Paso County, Colorado, for alleged violations of Form 2A location assessment conditions of approval [source: https://ecmc.state.co.us/orders/orders/1V/436.html]. This action predates the 24-month window but is cited here for pattern context.

Action 4 — Ohio tank incident, Fairfield-Unkefer site, Fairfield Township. Reported at 11:18 a.m. in late April 2026 by the Ohio Department of Natural Resources; emergency response was dispatched, but no federal enforcement disposition had been recorded as of the news cycle reviewed [source: https://www.reviewonline.com/news/local-news/2026/04/crews-respond-to-incident-at-hilcorp-2/] [source: https://www.wfmj.com/news/local-news/columbiana_city/crews-respond-to-explosion-near-columbiana-gas-facility/article_e912c6d3-2b82-4b3e-8ec4-9ce88a1fb02b.html].

Huerfano Unit HZMC 1H (New Mexico) — The subject wellsite. ECHO identifier 110055609578. No 24-month quarters of noncompliance are recorded; no active permits appear in the extract; the EJ index average is reported as 0.0, which reflects a data gap rather than a measured absence of proximate disadvantaged population [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. The site falls under the 2024 federal CAA consent decree applicable to Hilcorp's New Mexico production operations [source: https://www.justice.gov/enrd/media/1373866/dl?inline=].

Greka Bell Compressor Plant — NAICS 211120 peer with the highest 24-month derived federal penalty allocation in the peer set at approximately $26.16 million, zero reported quarters of noncompliance in the window, and no active permits listed [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip].

Red Hills Gas Processing Plant — NAICS 211130. Two facilities, eight quarters of noncompliance recorded in the trailing 24 months, and a derived penalty allocation of approximately $19.13 million [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. The higher violation count distinguishes this peer from the Huerfano Unit on the compliance dimension.

HP Gas Pad — NAICS 211120. Single facility, eight quarters of noncompliance, derived penalty allocation near $16.13 million [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip].

Fairfield-Unkefer (Ohio, Hilcorp-operated) — Not part of the Huerfano Unit. Included here for corporate context: a tank incident was reported on-site in late April 2026 with fire department response; ODNR confirmed the event classification [source: https://www.reviewonline.com/news/local-news/2026/04/crews-respond-to-incident-at-hilcorp-2/].

Volatile organic compounds (VOCs). The 2024 federal consent decree centers on uncontrolled VOC emissions during well completion flowback [source: https://www.epa.gov/enforcement/hilcorp-energy-company-new-mexico-clean-air-act-stationary-source-settlement]. VOCs are ozone precursors regulated under the Clean Air Act; the complaint filed in D.N.M. alleges violations of 42 U.S.C. § 7401 et seq. [source: https://www.justice.gov/enrd/media/1373861/dl?inline=]. Exposure pathways are primarily inhalation — for communities and workers within and downwind of production pads.

Methane. Hilcorp's own 2025 San Juan publication reports a year-over-year 81 percent methane reduction from 2023 to 2024 in the San Juan region [source: https://www.hilcorp.com/wp-content/uploads/2025/05/SJ-2025.pdf]. Methane is a short-lived climate forcer, and it is bundled with VOC controls in EPA oil and gas sector rulemakings referenced in the consent decree compliance schedule [source: https://www.justice.gov/enrd/media/1373866/dl?inline=]. An NGO tracker has flagged Hilcorp's trade association as active in opposing federal methane emission fees [source: https://biggaspolluters.org/polluter-of-the-month-hilcorp/].

Hazardous air pollutants (HAPs) including benzene. Well completion flowback streams in the San Juan Basin typically contain benzene, toluene, ethylbenzene, and xylenes. The federal complaint identifies the emission controls required at Hilcorp's completion operations — the same controls designed to reduce HAP loadings [source: https://www.justice.gov/enrd/media/1373861/dl?inline=]. EJ implications in the San Juan Basin are material given proximity to Navajo Nation and Jicarilla Apache Nation lands, though ECHO's EJ index for the HZMC 1H record is reported as 0.0 and should be treated as incomplete rather than dispositive [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip].

Against NAICS 211120/211130 peers, the Huerfano Unit HZMC 1H sits at the low end on derived 24-month penalty allocation at $3.76 million — well below the $26.16 million at Greka Bell Compressor Plant, the $19.13 million at Red Hills Gas Processing Plant, and the $16.13 million at HP Gas Pad, per the ECHO exporter extract dated May 4, 2026 [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. The subject wellsite records zero quarters of noncompliance in the window, matching Greka Bell and below the eight quarters reported at both Red Hills and HP Gas Pad [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. EJ indices across the peer set are uniformly reported as 0.0 and should be treated as missing data rather than confirmed low exposure — a limitation that applies equally to every facility in this comparison.

Hilcorp Energy Company is privately held and files no 10-K; no Item 1A risk factor disclosure is available through SEC EDGAR. Forward-looking environmental risk language instead appears in the company's corporate responsibility materials, which frame continued operation of late-life assets against a backdrop of increasing renewable supply and an eventual plateau in oil and gas demand [source: https://www.hilcorp.com/corporate-responsibility/]. Binding forward obligations are more concrete. The 2024 federal consent decree imposes compliance requirements, third-party verification, mitigation, reporting, and stipulated penalties enforceable by EPA, DOJ, and the New Mexico Environment Department [source: https://www.justice.gov/enrd/media/1373866/dl?inline=]. Those obligations run concurrently with Hilcorp's stated emissions improvement program in the San Juan Basin. On the fiscal side, regulatory risk in Alaska was reduced in April 2026 when the state House rejected extending corporate income tax to privately held producers including Hilcorp [source: https://www.adn.com/politics/alaska-legislature/2026/04/13/alaska-house-rejects-measure-to-apply-corporate-income-tax-to-hilcorp-and-other-private-oil-companies/].