HF Sinclair Corp

Commitment and Contingency Reserves

In the ordinary course of business, we may become party to legal, regulatory or administrative proceedings or governmental investigations, including environmental and other matters. Damages or penalties may be sought from us in some matters and certain matters may require years to resolve. While the outcome and impact of these proceedings and investigations on us cannot be predicted with certainty, based on advice of counsel and information currently available to us, management believes that the resolution of these proceedings and investigations through settlement or adverse judgment will not either individually or in the aggregate have a material adverse effect on our financial condition, results of operations or cash flows.

The environmental proceedings are reported to comply with SEC regulations which require us to disclose proceedings arising under provisions regulating the discharge of materials into the environment or protecting the environment when a governmental authority is party to the proceedings and such proceedings involve potential monetary sanctions that we reasonably believe could exceed $1 million or more.

Environmental Matters

Navajo

HF Sinclair Navajo Refining LLC (“HFS Navajo”) has been engaged in discussions with, and has responded to document requests from, the EPA, the United States Department of Justice (the “DOJ”) and the New Mexico Environment Department (“NMED”) (collectively, the “Navajo Matter Government Agencies”) regarding HFS Navajo’s compliance with the Clean Air Act (“CAA”) and underlying regulations, and similar New Mexico laws and regulations, at its Artesia and Lovington, New Mexico refineries. The discussions have included the following topics: (a) alleged noncompliance with CAA’s National Emission Standards for Hazardous Air Pollutants (“NESHAP”) and New Source Performance Standards (“NSPS”) at the Artesia refinery, which were set forth in a Notice of Violation (“May 2020 NOV”) issued by the EPA in May 2020; (b) a Post Inspection Notice issued in June 2020 by the NMED, alleging noncompliance issues similar to those alleged by the EPA in its May 2020 NOV as well as alleged noncompliance with the State Implementation Plan (“SIP”) and the Title V permit operating programs; (c) an information request issued in September 2020 by the EPA, pursuant to CAA Section 114, related to benzene fenceline monitoring, flare fuel gas, leak detection and repair, storage vessels and tanks, and other information regarding the Artesia refinery; (d) an information request issued by the EPA in May 2021, pursuant to CAA Section 114, requesting additional information and testing related to certain tanks at the Artesia refinery; and (e) informal information requests related to, among other things, the Artesia refinery’s wastewater treatment plant, oil water separators and heat exchangers. In April 2022, June 2023 and August 2023, the EPA alleged additional CAA noncompliance at the Artesia refinery beyond the allegations in the May 2020 NOV, including alleged noncompliance with NESHAP, NSPS, SIP, Title V and other requirements.

Beginning in the spring of 2021, HFS Navajo and the Navajo Matter Government Agencies began monthly meetings to discuss potential injunctive relief measures to address the alleged noncompliance at the Artesia refinery. In September 2021 and August 2023, the EPA presented to HFS Navajo potential claims for alleged noncompliance with a 2002 consent decree. In September 2024, the Navajo Matter Government Agencies presented to HFS Navajo a proposed penalty demand for the alleged noncompliance at the Artesia refinery.

On January 17, 2025, HFS Navajo reached a settlement agreement with the EPA, DOJ, and the NMED, and a new consent decree was lodged with the U.S. District Court for the District of New Mexico (the “2025 Consent Decree”) to resolve alleged CAA and New Mexico Air Quality Control Act violations as well as alleged violations of the 2002 consent decree at the Artesia refinery. The 30-day public comment period for the 2025 Consent Decree has expired, and, on April 25, 2025, the Navajo Matter Government Agencies filed a motion to enter the 2025 Consent Decree with the U.S. District Court. The 2025 Consent Decree will become effective after Court approval.

Under the 2025 Consent Decree, HFS Navajo must pay the sum of $34 million as a civil penalty to the United States and the State of New Mexico according to the following schedule: (1) $10 million to the United States, and $10 million to the State of New Mexico within 30 days after the effective date of the 2025 Consent Decree; and (2) $7 million to the United States and $7 million to the State of New Mexico by January 31, 2026. Separately, on January 29, 2025, HFS Navajo paid stipulated penalties in the amount of $1 million, divided equally between the United States and the State of New Mexico, resolving alleged noncompliance under the 2002 Consent Decree. Finally, HFS Navajo must implement injunctive relief and mitigation measures at an estimated cost of $137 million, including capital investments, at the Artesia refinery, certain of which measures have already been implemented as of the date of filing this Quarterly Report on Form 10-Q and the remainder of which must be completed by various deadlines, ending in 2031.

Puget Sound

HF Sinclair Puget Sound Refining LLC (“HFS Puget Sound”) has been engaged in discussions with, and has responded to document requests from, the Northwest Clean Air Agency (“NWCAA”), the EPA and the DOJ (collectively, the “PSR Matter Government Agencies”) regarding HFS Puget Sound’s compliance with the CAA, Emergency Planning and Community Right-to-Know Act (“EPCRA”) and related regulations, and similar Washington laws and regulations, at its Puget Sound Refinery. HFS Puget Sound acquired the Puget Sound Refinery from Equilon Enterprises LLC dba Shell Oil Products US (“SOPUS”) on November 1, 2021. The discussions with the PSR Matter Government Agencies have included the following topics: (a) an information request issued in March 2022 by the EPA, pursuant to CAA Section 114, covering periods of ownership of the Puget Sound Refinery by both HFS Puget Sound and SOPUS; (b) a Notice of Violation issued by the EPA to SOPUS and HFS Puget Sound on September 29, 2023, alleging violations of the CAA, EPCRA and the Pollution Prevention Act; and (c) the PSR Matter Government Agencies’ proposed injunctive relief terms presented to SOPUS and HFS Puget Sound on June 28 and July 15, 2024, covering various process units at Puget Sound Refinery to address the alleged noncompliance. On October 31, 2024, HFS Puget Sound presented its counteroffer to the PSR Matter Government Agencies’ proposed injunctive relief terms. HFS Puget Sound believes that it is entitled to indemnification for certain of the matters described above.

HFS Puget Sound continues to work with the PSR Matter Government Agencies to resolve these issues.

At this time, no penalties have been demanded, and it is too early to predict the outcome of this matter.

Renewable Fuel Standard

On April 7, 2022, the EPA issued a decision reversing the grant of small refinery exemptions for our Woods Cross and Cheyenne refineries for the 2018 compliance year. On June 3, 2022, the EPA issued a decision reversing the grant of small refinery exemptions for our Woods Cross and Cheyenne refineries for the 2016 compliance year and denying small refinery exemption petitions for our Woods Cross and Cheyenne refineries for the 2019 and 2020 compliance years.

Various subsidiaries of HollyFrontier pursued legal challenges to the EPA’s decisions to deny small refinery exemptions for the 2016, 2018, 2019 and 2020 compliance years. The first lawsuit, filed against the EPA on May 6, 2022, before the U.S. Court of Appeals for the DC Circuit (the “DC Circuit”), sought to have the EPA’s reversal of our 2018 small refinery exemption petitions overturned. The second lawsuit, filed against the EPA on August 5, 2022 before the DC Circuit, sought to have the EPA’s reversal of our 2016 small refinery exemption petitions overturned and to have the EPA’s denial of our 2019 and 2020 small refinery exemption petitions reversed.

In addition, for both the 2016 and 2018 compliance years, pursuant to the June 2022 and April 2022 decisions, the EPA established an alternative compliance demonstration for small refineries pursuant to which the EPA is not imposing any obligations for the small refineries whose exemptions were reversed. On June 24, 2022, Growth Energy filed two lawsuits in the DC Circuit against the EPA challenging the alternative compliance demonstration for the 2016 and 2018 compliance years. On July 25, 2022, various subsidiaries of HollyFrontier intervened on behalf of the EPA to aid the defense of the EPA’s alternative compliance demonstration decision.

On July 26, 2024, the DC Circuit issued a favorable decision vacating the EPA’s denial of all of our small refinery exemption petitions, finding the denial to be unlawful. The DC Circuit remanded the small refinery exemption petitions to the EPA for new determination. The DC Circuit also upheld the alternative compliance demonstration and denied Growth Energy’s challenge.

It is too early to determine the final impact of the DC Circuit’s decisions.

Other

We are a party to various other litigation and proceedings that we believe, based on the advice of counsel, will not either individually or in the aggregate have a materially adverse impact on our financial condition, results of operations or cash flows.