X0306 4 2020-05-14 0001423902 Western Midstream Partners, LP WES 0001791932 Griffie Charles G. 9950 WOODLOCH FOREST DR. SUITE 2800 THE WOODLANDS TX 77380 1 SVP, Ops and Engineering Common Units representing limited partner interests 2020-05-14 4 A 0 2899 0 A 3605 D Common Units representing limited partner interests 2020-05-14 4 D 0 705 7.03 D 2900 D Represents an issuance of WES Common Units pursuant to distribution equivalent rights (DERs) existing under the terms of unvested phantom and performance unit awards, which provide for DERs to be paid in the form of WES Common Units. /s/ Philip C. Neisel, as attorney-in-fact 2020-05-18