Item 3. Legal Proceedings

In the ordinary course of business, various legal and regulatory claims and proceedings are pending or threatened against us. While the amounts claimed may be substantial, we are unable to predict with certainty the ultimate outcome of such claims and proceedings. We accrue legal and other direct costs related to loss contingencies when actually incurred. We have established reserves in amounts that we believe to be appropriate for pending matters and, after consultation with counsel and giving appropriate consideration to available insurance, we believe that the ultimate outcome of any pending matter involving us will not materially affect our financial position, results of operations or liquidity.

Environmental Proceedings

Pratt Storage Field Matter, Morgan Township, Pennsylvania

On October 31, 2018, a gas explosion occurred in Morgan Township, Greene County, Pennsylvania (the Pratt Incident), close in proximity to the Pratt Storage Field assets of Equitrans, L.P., one of our subsidiaries. Following the explosion, the Pennsylvania Department of Environmental Protection (the PADEP), the Pennsylvania Public Utilities Commission and the PHMSA began investigating the Pratt Incident. The PADEP issued a final report and closed its investigation in August 2022, and we do not expect further inquiry from the PADEP on this matter; however, the Pennsylvania Public Utilities Commission and the PHMSA investigations are still open.

On October 23, 2023, Equitrans, L.P. received permission from the FERC to plug and abandon the AH Hupp 3660 storage well (Hupp Well) in the Pratt Storage Field that was the subject of the PADEP's investigation of the Pratt Incident. On October 22, 2024, Equitrans, L.P. received from the FERC an extension until January 31, 2025 to complete plugging and abandonment of the Hupp Well. On March 4, 2025, Equitrans, L.P. was granted an additional extension of time, until July 31, 2025, to complete the plugging of the Hupp Well, and, on July 21, 2025, the FERC further extended the time period until January 31, 2026. Plugging operations were completed in advance of the January 31, 2026 deadline, and Equitrans L.P. plans to complete formal abandonment of the Hupp Well.

On October 30, 2023, Equitrans, L.P. received a criminal complaint from the State Attorney General's Office charging Equitrans, L.P. with violations of Pennsylvania's Clean Streams Law (the Pratt Complaint), and generally alleging that: (i) natural gas leaked from the Hupp Well and into a water well and (ii) Equitrans, L.P. failed to conduct a stray gas investigation of the Pratt Incident. The Pratt Complaint carries the possibility of a monetary sanction, that if imposed could result in a fine in excess of $300,000; however, we expect that the resolution of this matter will not have a material adverse impact on our financial condition, results of operations or liquidity.

Rager Mountain Storage Field Venting, Jackson Township, Pennsylvania

On November 6, 2022, Equitrans Midstream Corporation (Equitrans Midstream) became aware of natural gas venting from one of the storage wells, well 2244, at Equitrans, L.P.'s Rager Mountain natural gas storage facility (the Rager Mountain Facility), located in Jackson Township, a remote section of Cambria County, Pennsylvania. Venting at the Rager Mountain Facility was halted on November 19, 2022. Since the time of the incident, the PADEP has concluded its investigation and the PHMSA and other investigators are continuing to conduct civil and criminal investigations of the incident, and we are cooperating in such investigations.

On December 29, 2022, the PHMSA issued Equitrans Midstream a Notice of Proposed Safety Order that included proposed remedial requirements related to the Rager Mountain Facility incident, including, but not limited to, completing a root cause analysis, and subsequently, on May 26, 2023, the PHMSA issued a consent order to Equitrans Midstream requiring the completion of a root cause analysis and a remedial work plan and providing that Equitrans Midstream may not resume injection operations at the Rager Mountain Facility until authorized by the PHMSA. In August 2023, Equitrans Midstream submitted a root cause analysis to the PHMSA and later submitted a remedial work plan and injection plan seeking authority to resume injections at the Rager Mountain Facility using all wells in the facility except three, which remained disconnected from the storage field. On October 2, 2023, the PHMSA approved Equitrans Midstream's injection plan and Equitrans Midstream restarted injections at the Rager Mountain Facility on October 5, 2023, subject to certain pressure restrictions and other requirements in the PHMSA consent agreement. On November 16, 2023, the PHMSA issued a letter to Equitrans Midstream approving Equitrans Midstream's request to remove all pressure restrictions at the Rager Mountain Facility. On May 30, 2024, the PHMSA approved resuming operations for one of the three remaining wells excluded from the injection plan. The corrective measures in the May 2023 consent order with the PHMSA have been completed, all wells at the Rager Mountain Facility have returned to service, and on January 9, 2026, we submitted a request to the PHMSA that the consent order be terminated.

On October 17, 2025, the PHMSA issued a Notice of Probable Violation and Proposed Civil Penalty pertaining to this matter, pursuant to which the PHMSA recommended assessing a civil penalty of $939,000. We expect that the resolution of this matter, including the payment of the civil penalty, will not have a material adverse impact on our financial condition, results of operations or liquidity.

Additionally, on July 24, 2025, the Pennsylvania Fifty-First Statewide Investigating Grand Jury returned four criminal charges against Equitrans, L.P., consisting of one violation of the Air Pollution Control Act (35 P.S. 4009(b)(1)) and three violations of the Clean Streams Law (35 P.S. 691.602(b); 35 P.S. 691.401; and 35 P.S. 691.611). All charges are second degree misdemeanors. In its complaint (the Rager Complaint), the Commonwealth of Pennsylvania alleges that from November 6, 2022, to November 19, 2022, Equitrans, L.P. negligently caused air pollution and brine water to emit and discharge into the air, groundwater, and wetlands around the George L. Reade #1 Well, without first obtaining a permit from the PADEP. The Rager Complaint carries the possibility of a monetary sanction, that if imposed could result in a fine in excess of $300,000; however, we expect that the resolution of this matter will not have a material adverse impact on our financial condition, results of operations or liquidity.