HARVEST MIDSTREAM COMPANY — Integrity Assurance Notification

GOM REBURIAL DELAYPursuant to §195.413 Underwater Inspection and Reburial of Pipelines in the Gulf of Mexico and its Inlets, Harvest Midstream continues to work permitting for the depth of cover issues identified in NRC incidents below: - #1348085 - dated September 23, 2022 - #1366652 - dated May 8, 2023 - #1366658 - supplemental report to #1366652 All identified areas of concern were marked within seven days of the initial discovery, and the markings continue to be maintained. The depth of cover issues identified and reported on NRC report #1348085 have become part of a larger scale project lowering multiple Harvest Gulf of Mexico pipelines. They are now being worked simultaneously with the pipelines reported with NRC reports #1366652/#136658. It is Harvest’s intention to remediate the areas of concern as soon as permits have been acquired and reburial contracts secured. NRC reports #1366652/#1366658 can be referenced for more details associated with the current project. Harvest submitted a joint permit application (JPA) to the US Army Corps and Office of Coastal Management July 21, 2023, to request authorization to lower the pipelines. This permit is expected to take 6-9 months for approval. Harvest is periodically performing inspections to ensure that the line markers remain visible until the work is completed and depth of cover is restored.#