X0306 4 2019-08-08 0001423902 Western Midstream Partners, LP WES 0001432308 Tudor David J 1201 LAKE ROBBINS DRIVE THE WOODLANDS TX 77380 1 Common Units representing limited partner interests 2019-08-08 4 M 0 4202 0 A 36241 D Phantom Units 2019-08-08 4 M 0 4202 0 D 2020-05-08 2020-05-08 Common Units representing limited partner interests 4202 0 D 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, in the discretion of our general partners' board of directors, cash equal to the fair market value of a common unit at the time of vesting. Pursuant to the terms of the award, this Phantom Unit grant vested in full upon the change of control of Anadarko Petroleum Corporation on August 8, 2019. /s/ Courtney H. Landry by power of atty. for David J. Tudor 2019-08-12