In the ordinary conduct of our business, we are from time to time subject to lawsuits, investigations and claims, including environmental claims and employee-related matters. Although we cannot predict with certainty the ultimate resolution of lawsuits, investigations and claims asserted against us, including civil penalties or other enforcement actions, we do not believe that any currently pending legal proceeding or proceedings to which we are a party will have a material adverse effect on our financial statements. Certain environmental matters that have or may result in penalties or assessments are discussed below in the "Environmental, Health and Safety" section of this note.

We are subject to extensive federal, state and local environmental and safety laws and regulations enforced by various agencies, including the EPA, the U.S. Department of Transportation and the Occupational Safety and Health Administration, as well as numerous state, regional and local environmental, safety and pipeline agencies. These laws and regulations govern the discharge of materials into the environment, waste management practices, pollution prevention measures and the composition of the fuels we produce, as well as the safe operation of our plants and pipelines and the safety of our workers and the public. Numerous permits or other authorizations are required under these laws and regulations for the operation of our refineries, renewable fuels facilities, terminals, pipelines, underground storage tanks, trucks, rail cars and related operations, and may be subject to revocation, modification and renewal.

These laws and permits raise potential exposure to future claims and lawsuits involving environmental and safety matters which could include soil and water contamination, air pollution, personal injury and property damage allegedly caused by substances which we manufactured, handled, used, released or disposed of, transported, or that relate to pre-existing conditions for which we have assumed responsibility. We believe that our current operations are in substantial compliance with existing environmental and safety requirements. However, there have been and will continue to be ongoing discussions about environmental and safety matters between us and federal and state authorities, including notices of violations, citations and other enforcement actions, some of which have resulted or may result in changes to operating procedures and in capital expenditures. While it is often difficult to quantify future environmental or safety related expenditures, we anticipate that continuing capital investments and changes in operating procedures will be required for the foreseeable future to comply with existing and new requirements, as well as evolving interpretations and more strict enforcement of existing laws and regulations.

As of December 31, 2024, we have recorded an environmental liability of approximately $37.2 million, primarily related to the estimated probable costs of remediating or otherwise addressing certain environmental issues of a non-capital nature at our refineries, as well as terminals, some of which we no longer own. This liability includes estimated costs for ongoing investigation and remediation efforts for known contamination of soil and groundwater. Approximately $3.9 million of the total liability is expected to be expended over the next 12 months, with most of the balance expended by 2039, although some costs may extend up to 25 years. In the future, we could be required to extend the expected remediation period or undertake additional investigations of our refineries, pipelines and terminal facilities, which could result in the recognition of additional remediation liabilities.

On June 27, 2024, we settled a dispute that was in litigation related to a property that we historically operated as an asphalt and marine fuel terminal both as an owner and, subsequently, as a lessee under an in-substance lease agreement (the “License Agreement”). The settlement included the purchase of the property for $10.0 million and $42.0 million for settlement of the litigation for a total of $52.0 million. The total settlement was comprised of $24.0 million of cash paid at closing and a promissory note for $28.0 million to be paid in three equal installments of $9.3 million on each of April 1, 2025, April 1, 2026 and April 1, 2027, plus accrued interest. The settlement charge is recorded in other operating income, net in the consolidated statements of income.

The License Agreement, which provided us the license to continue operating our asphalt and marine fuel terminal operations on the property for a term of ten years and expired in June 2020, also ascribed a contractual noncontingent indemnification guarantee to certain of our wholly-owned subsidiaries related to certain incremental environmental remediation activities, predicated on the completion of certain property development activities ascribed to the lessor was formally terminated in the settlement. As a result of the termination of the License Agreement, we are no longer obligated to remove equipment from the property for certain development activities and as a result we have reversed the $17.9 million asset retirement obligation recorded in connection with the Delek/Alon Merger, effective July 1, 2017, since we own the property and intend to operate the property as an asphalt and marine fuel terminal and there was no remaining basis in the equipment. Additionally, as a result of the settlement, we reduced the non-contingent guarantee and environmental liability to $1.0 million since our risk of a contingent guarantee was eliminated and determined it appropriate to retain an accrual based on what we can reasonably estimate as the cost of the initial steps once operations cease or a cleanup is ordered. Total net gain from the property settlement was $53.4 million and is recorded in other operating income, net in the consolidated statements of income.

Environmental liabilities with payments that are fixed or reliably determinable have been discounted to present value at various rates depending on their expected payment stream. These discount rates vary from 1.55% to 2.84%. The table below summaries our environmental liability accruals (in millions):

We are also subject to various regulatory requirements related to carbon emissions and the compliance requirements to remit environmental credit obligations due to the EPA or other regulatory agencies, the most significant of which relates to the RINs Obligation subject to the EPA’s RFS-2 regulations (See Note 2 for further discussion). The RFS-2 regulations are highly complex and evolving, requiring us to periodically update our compliance systems. As part of our on-going monitoring and compliance efforts, on an annual basis, we engage a third party to perform procedures to review our RINs inventory, processes and compliance. The results of such procedures may include procedural findings but may also include findings regarding the usage of RINs to meet past obligations, the treatment of exported RINs, and the propriety of RINs on-hand and related adjustments to our RINs inventory, which (to the extent they are valued) offset our RINs Obligation. Such adjustments may also require communication with the EPA if they involve reportable non-compliance which could lead to the assessment of penalties.

In June 2022, the EPA finalized volumes for 2022 under the RFS program, announced supplemental volume obligations for compliance years 2022 and 2023 and established new provisions of the RFS which addressed bio-intermediates. Additionally, the EPA denied the petitions for small refinery exemptions for prior period compliance years. In July 2023, the EPA announced final volume obligations for compliance years 2023, 2024 and 2025.

Delek maintains property damage insurance policies which have varying deductibles. Delek also maintains business interruption insurance policies, with varying coverage limits and waiting periods. Covered losses in excess of the deductible and outside of the waiting period will be recoverable under the property and business interruption insurance policies.

On February 27, 2021, our El Dorado refinery experienced a fire in its Penex unit. Contrary to initial assessments, and despite occurring during the early stages of turnaround activity, the facility did suffer operational disruptions as a result of the fire. During the year ended December 31, 2023, we recorded an additional $8.7 million for litigation, claims and assessments associated with the fire and are in excess of insurance coverage, which are included in operating expenses in the consolidated statements of income. In October 2023, we entered into a settlement

Insurance proceeds and other recoveries of $20.7 million was recognized as a gain, in excess of property damage losses during the year ended December 31, 2024. No insurance proceeds and other recoveries were recorded during the years ended December 31, 2023 and 2022. Such gain is included in insurance proceeds and other operating income, net in the consolidated statements of income. In addition, during the years ended December 31, 2023 and 2022, we recognized a gain of $1.1 million and $9.1 million, respectively, related to business interruption claims. No business interruption claims were recorded for the year ended December 31, 2024. Such gains are included in insurance proceeds in the consolidated statements of income. An additional $10.6 million of other recoveries was recognized as a gain, related to business interruption claims, during the year ended December 31, 2024. Such gain are included in other operating income, net in the consolidated statements of income. If applicable, we accrue receivables for probable insurance or other third-party recoveries. Work to determine the full extent of covered business interruption and property and casualty losses and potential insurance claims is ongoing and may result in the future recognition of insurance recoveries.

On November 29, 2022, our Big Spring refinery experienced a fire in its diesel hydrotreater unit. The facility suffered operational disruptions as a result of the fire. Accelerated depreciation due to property damaged in the fire was immaterial. We incurred repair costs that may be recoverable under property and casualty insurance policies and we submitted a claim in 2023. We recognized accelerated depreciation in 2022 due to property damaged in the fire, which was recovered during the year ended December 31, 2023. An additional $7.4 million and $6.5 million was recognized as a gain, in excess of these losses, during the years ended December 31, 2024 and 2023, respectively. This gain is included in insurance proceeds in the consolidated statements of income. If applicable, we accrue receivables for probable insurance or other third-party recoveries. Work to determine the full extent of covered property losses and potential insurance claims is ongoing and may result in the future recognition of insurance recoveries.

During February 2021, we experienced a severe weather event ("Winter Storm Uri") which temporarily impacted operations at all of our refineries. Due to the extreme freezing conditions, we experienced reduced throughputs at our refineries as there was a disruption in the crude supply, as well as damages to various units at our refineries requiring additional operating and capital expenditures. We recognized $1.0 million, $3.8 million and $0.1 million as a gain, in excess of these losses during the years ended December 31, 2024, 2023 and 2022, respectively. In addition, during the years ended December 31, 2023 and 2022, we also recognized a gain of $8.9 million and $22.0 million, respectively, related to business interruption claims. No business interruption claims were recognized during the year ended December 31, 2024. Such gains are included in insurance proceeds in the consolidated statements of income. If applicable, we accrue receivables for probable insurance or other third-party recoveries. Work to determine the full extent of covered business interruption and property and casualty losses and potential insurance claims is ongoing and may result in additional future recognition of insurance recoveries.

We have experienced several crude oil and other releases involving our assets. There were no material releases that occurred during the years ended December 31, 2024 and 2023. For releases that occurred in prior years, we have received regulatory closure or a majority of the cleanup and remediation efforts are substantially complete. We do not anticipate material costs associated with any fines or penalties or to complete activities that may be needed to achieve regulatory closure. Expenses incurred for the remediation of these crude oil and other releases are included in operating expenses in our consolidated statements of income.