X0306 4 2020-02-12 0001423902 Western Midstream Partners, LP WES 0001698812 Collins Craig W 1201 LAKE ROBBINS DR THE WOODLANDS TX 77381 1 SVP & Chief Operating Officer Common Units representing limited partner interests 400 D Common Units representing limited partner interests 732 I by LLC Phantom Units 2020-02-12 4 A 0 65544 0 A Common Units representing limited partner interests 65544 65544 D These units are held in a limited liability company in which Mr. Collins holds a 50%interest and exercises investment control. Mr. Collins disclaims beneficial ownership of these securities in excess of his pecuniary interest therein. Each Phantom Unit is the economic equivalent of one WES Common Unit representing limited partnership interests, and upon vesting, entitled to receive a common unit The phantom units vest in three annual installments beginning one year after the date of grant, and will pay distribution equivalent rights prior to vesting in the form of WES Common Units. /s/ Courtney H. Landry by power of atty. for Craig W. Collins 2020-02-14