X0306 4 2022-08-08 0001423902 Western Midstream Partners, LP WES 0001785307 Ure Michael 9950 WOODLOCH FOREST DR. THE WOODLANDS TX 77380 1 1 President & CEO Common units representing limited partner interests 2022-08-08 5 G 0 E 16500 0 D 123837 D Common units representing limited partner interests 2022-08-12 4 A 0 2585 0 A 126422 D Common units representing limited partner interests 2022-08-12 4 F 0 1017 28.17 D 125405 D 2020 Performance Unit - ROA 2023-02-12 2023-02-12 Common units representing limited partner interests 46817 46817 D 2020 Performance Unit - TUR 2023-02-12 2023-02-12 Common units representing limited partner interests 46817 46817 D 2021 Performance Unit - ROA 2024-02-12 2024-02-12 Common units representing limited partner interests 110201 110201 D 2021 Performance Unit - TUR 2024-02-12 2024-02-12 Common units representing limited partner interests 110201 110201 D 2022 Performance Unit - ROA 2025-02-12 2025-02-12 Common units representing limited partner interests 43353 43353 D 2022 Performance Unit - TUR 2025-02-12 2025-02-12 Common units representing limited partner interests 43353 43353 D Phantom Units Common units representing limited partner interests 52018 52018 D Phantom Units Common units representing limited partner interests 170668 170668 D Units transferred in connection with a donation to a charitable institution. Each performance-based unit represents the right to receive, following vesting, between 0% and 200% of one WES Common Unit based upon the achievement of pre-established performance metrics over a 3-year performance period. Each Phantom Unit is the economic equivalent of one WES Common Unit representing limited partnership interests, and upon vesting, will entitle the holder to receive a common unit or, at the discretion of the Board of Directors of the General Partner, cash equal to the Fair Market Value of a Common Unit. These Phantom Units vest ratably over a three-year period on February 12th of each year, and will pay distribution equivalent rights in the form of WES Common Units on a current basis. These Phantom Units vest ratably over a three-year period on February 12th of each year, and will pay distribution equivalent rights in cash on a current basis. /s/ Philip C. Neisel, as attorney-in-fact 2022-08-16