Commitments and Contingencies	6 Months Ended
Jun. 30, 2026
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation 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. Environmental, Health and Safety 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 that 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 June 30, 2026, we have recorded an environmental liability of approximately $35.2 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 $4.5 million of the total liability is expected to be expended over the next 12 months, with most of the balance expended by 2037, although some costs may extend up to 24 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. Lease Commitment Delek Logistics has entered into an arrangement with a third party to construct, own, and subsequently lease to us certain sour gas gathering equipment near our Libby gas processing plant. Construction is expected to be completed in the second half of 2026, at which time we are committed to enter into a finance lease for the equipment. As we do not control the assets during construction and have no obligation to fund construction costs, no assets or related obligations have been recognized on the condensed consolidated balance sheets as of June 30, 2026. The total estimated project cost is approximately $60.0 million. Upon lease commencement, we will recognize a right-of-use asset and corresponding lease liability in accordance with ASC 842, Leases ("ASC 842").

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 that 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 June 30, 2026, we have recorded an environmental liability of approximately $35.2 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 $4.5 million of the total liability is expected to be expended over the next 12 months, with most of the balance expended by 2037, although some costs may extend up to 24 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.

Delek Logistics has entered into an arrangement with a third party to construct, own, and subsequently lease to us certain sour gas gathering equipment near our Libby gas processing plant. Construction is expected to be completed in the second half of 2026, at which time we are committed to enter into a finance lease for the equipment. As we do not control the assets during construction and have no obligation to fund construction costs, no assets or related obligations have been recognized on the condensed consolidated balance sheets as of June 30, 2026. The total estimated project cost is approximately $60.0 million. Upon lease commencement, we will recognize a right-of-use asset and corresponding lease liability in accordance with ASC 842, Leases ("ASC 842").