X0306 4 2019-02-28 0 0001423902 Western Midstream Partners, LP WES 0001188744 CARROLL MILTON 1201 LAKE ROBBINS DR THE WOODLANDS TX 77380 1 0 0 0 Common Units representing limited partner interests 2019-02-28 4 A 0 15774 A 15774 D Phantom Units 2019-02-28 4 A 0 3058 0.00 A 2019-05-08 2019-05-08 Common Units representing limited partner interests 3058 3058 D Acquisition in connection with the merger of a wholly owned subsidiary of Western Gas Equity Partners, LP ("WGP") with Western Gas Partners, LP ("WES"), with WES continuing as the surviving entity and becoming a wholly owned subsidiary of WGP (the "Merger"). On February 27, 2019, the last trading day for the WES common units, the closing price of WES's common units was $49.55 per unit and the closing price of WGP's common units was $32.72 per unit. Each WES common unit outstanding was converted into the right to receive 1.525 WGP common units. As part of the Merger, WES changed its name to "Western Midstream Partners, LP" and its common units ceased rading on the New York Stock Exchange ("NYSE") and WGP changed its name to "Western Midstream Partners, LP" and its common units began trading on the NYSE under the "WES" ticker symbol when the market opened on Thursday, February 28, 2019. In connection with the Merger, Mr. Carroll's grant of 2,005 WES phantom units was converted into a grant of 3,058 WGP phantom units, which reflects the conversion ratio of 1.525 WGP common units for each WES common unit set forth in the Merger transaction document. /s/ Courtney H. Landry by power of atty. for Milton Carroll 2019-03-04