As of August 04, 2026, Western Midstream Partners's top three insider holders are Petroleum Corp /De/ Occidental (TenPercentOwner, 150.37Mn shares), Petroleum Corp /De/ Occidental (TenPercentOwner, 150.37Mn shares), Michael Ure (President Ceo, 539.40K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Petroleum Corp /De/ Occidental | - | 0 | 150,374,176 | 05 Feb, 2026 |
| Robert G Phillips | - | 5,296 | 0 | 12 Mar, 2026 |
| David J Schulte | - | 40,072 | 0 | 13 Feb, 2026 |
| Lisa A Stewart | - | 39,772 | 0 | 13 Feb, 2026 |
| Kenneth F. Owen | - | 41,772 | 0 | 13 Feb, 2026 |
| Robert W. Bourne | Svp Chief Commercial Officer | 149,715 | 0 | 14 Feb, 2025 |
| Craig W Collins | Svp Chief Operating Officer | 75,254 | 0 | 16 Aug, 2022 |
| Oscar K Brown | President Ceo | 85,440 | 0 | 13 Feb, 2026 |
| Christopher B. Dial | Svp, Gc And Secretary | 225,015 | 0 | 19 Feb, 2026 |
| Michael Ure | President Ceo | 539,404 | 0 | 20 May, 2024 |
| Catherine A. Green | Svp Chief Accounting Officer | 115,036 | 0 | 13 Feb, 2026 |
| Charles G. Griffie | Svp, Ops And Engineering | 18,694 | 0 | 16 Nov, 2021 |
| Kristen S. Shults | Svp Chief Financial Officer | 143,752 | 0 | 13 Feb, 2026 |
| Daniel P. Holderman | Svp Chief Operating Officer | 91,384 | 0 | 13 Feb, 2026 |
| Michael S. Forsyth | Svp, North Operations | 42,327 | 0 | 14 Feb, 2025 |
| Alejandro O Nebreda | Svp, Business Services | 64,357 | 0 | 14 Feb, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Mar, 2026 | Robert G Phillips | Common Units representing limited partner interests | A | 1,250 | $40.19 | 5,296 | D | P |
| 12 Feb, 2026 | Christopher B. Dial | Common Units representing limited partner interests | D | 5,879 | $42.35 | 225,015 | D | F |
| 12 Feb, 2026 | Catherine A. Green | Common Units representing limited partner interests | A | 7,018 | $0.00 | 83,733 | D | M |
| 12 Feb, 2026 | Kenneth F. Owen | Common Units representing limited partner interests | A | 3,843 | $0.00 | 41,772 | D | M |
| 12 Feb, 2026 | Frederick A. Forthuber | Phantom Units | A | 3,778 | $0.00 | 3,778 | D | A |
| 12 Feb, 2026 | Robert G Phillips | Common Units representing limited partner interests | A | 4,046 | $0.00 | 4,046 | D | M |
| 12 Feb, 2026 | Daniel P. Holderman | Common Units representing limited partner interests | A | 10,819 | $0.00 | 46,567 | D | M |
| 12 Feb, 2026 | Lisa A Stewart | Common Units representing limited partner interests | A | 3,843 | $0.00 | 39,772 | D | M |
| 12 Feb, 2026 | Kristen S. Shults | Common Units representing limited partner interests | A | 10,819 | $0.00 | 98,948 | D | M |
| 12 Feb, 2026 | David J Schulte | Common Units representing limited partner interests | A | 3,843 | $0.00 | 40,072 | D | M |
| 12 Feb, 2026 | Christopher B. Dial | Common Units representing limited partner interests | A | 10,819 | $0.00 | 180,208 | D | M |
| 12 Feb, 2026 | Oscar K Brown | Common Units representing limited partner interests | A | 24,022 | $0.00 | 95,950 | D | M |
| 12 Feb, 2026 | Robert G Phillips | Phantom Units | D | 4,046 | $0.00 | 0 | D | M |
| 12 Feb, 2026 | Oscar K Brown | Common Units representing limited partner interests | D | 10,510 | $42.35 | 85,440 | D | F |
| 12 Feb, 2026 | Christopher B. Dial | Common Units representing limited partner interests | D | 4,258 | $42.35 | 175,950 | D | F |
| 12 Feb, 2026 | Kenneth F. Owen | Phantom Units | D | 3,843 | $0.00 | 0 | D | M |
| 12 Feb, 2026 | David J Schulte | Phantom Units | A | 3,778 | $0.00 | 3,778 | D | A |
| 12 Feb, 2026 | Kristen S. Shults | Common Units representing limited partner interests | D | 4,258 | $42.35 | 94,690 | D | F |
| 12 Feb, 2026 | Daniel P. Holderman | Common Units representing limited partner interests | D | 4,258 | $42.35 | 42,309 | D | F |
| 12 Feb, 2026 | Lisa A Stewart | Phantom Units | D | 3,843 | $0.00 | 0 | D | M |