| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 02/28/2019 | Western Midstream Operating, LP | WES | Grant | Common Units representing limited partner interests | 14.7M | $0.00 | $0 | See footnotes | 02/28/2019 |
| 02/28/2019 | Western Midstream Operating, LP | WES | Grant | Common Units representing limited partner interests | 45.8M | $0.00 | $0 | See footnotes | 02/28/2019 |
| 02/28/2019 | Western Midstream Operating, LP | WES | Grant | Common Units representing limited partner interests | 105.6M | $0.00 | $0 | See footnotes | 02/28/2019 |
| 02/28/2019 | Western Midstream Operating, LP | WES | Disposition | Common Units representing limited partner interests | 218.2M | $0.00 | $0 | See footnotes | 02/28/2019 |
| 02/28/2019 | Western Midstream Operating, LP | WES | Disposition | Class C units representing limited partner interests | 14.7M | $0.00 | $0 | See footnotes | 02/28/2019 |
| 02/28/2019 | Western Midstream Partners, LP | WGP | Grant | Common Units representing limited partner interets | 80.8M | $0.00 | $0 | See foonotes | 02/28/2019 |
| 02/13/2019 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 308.7k | $0.00 | $0 | See footnotes | 02/13/2019 |
| 11/13/2018 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 327.2k | $0.00 | $0 | See footnotes | 11/13/2018 |
| 08/13/2018 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 267.2k | $0.00 | $0 | See footnotes | 08/13/2018 |
| 06/07/2018 | Western Midstream Partners, LP | WGP | Other (disposition) | Common Units representing limited partner interests | 8.2M | $0.00 | $0 | See footnote | 06/07/2018 |
| 06/07/2018 | Western Midstream Partners, LP | WGP | Other (disposition) | Purchase Contract Obligation to Deliver Common Units | 9.2M | $0.00 | $0 | | 06/07/2018 |
| 02/13/2018 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 261.4k | $0.00 | $0 | See footnotes | 02/13/2018 |
| 11/13/2017 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 266.2k | $0.00 | $0 | See footnotes | 11/13/2017 |
| 08/11/2017 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 234.3k | $0.00 | $0 | See footnotes | 08/11/2017 |
| 05/12/2017 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 206.2k | $0.00 | $0 | See footnotes | 05/12/2017 |
| 02/13/2017 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 179k | $0.00 | $0 | See footnotes | 02/13/2017 |
| 11/10/2016 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 197.7k | $0.00 | $0 | See footnotes | 11/10/2016 |
| 08/12/2016 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 214.4k | $0.00 | $0 | See footnotes | 08/12/2016 |
| 06/17/2016 | Western Midstream Partners, LP | WGP | Sale | Common Units representing limited partner interests | 12.5M | $38.09 | $476.1M | See footnote | 06/17/2016 |
| 05/13/2016 | Western Midstream Operating, LP | WES | Other (acquisition) | Class C units representing limited partner interests | 210.6k | $0.00 | $0 | See footnotes | 05/13/2016 |
| 03/14/2016 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 1.3M | $29.91 | $37.5M | See footnotes | 03/14/2016 |
| 03/14/2016 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 835.8k | $29.91 | $25M | See footnotes | 03/14/2016 |
| 03/01/2013 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 449.1k | $54.55 | $24.5M | See footnotes | 03/01/2013 |
| 08/01/2012 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 151.2k | $0.00 | $0 | See footnotes | 08/01/2012 |
| 01/13/2012 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 632.8k | $0.00 | $0 | See footnotes | 01/13/2012 |
| 07/08/2011 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 3M | $0.00 | $0 | See footnotes | 07/08/2011 |
| 01/29/2010 | Western Midstream Operating, LP | WES | Purchase | Common Units representing limited partner interests | 620.7k | $0.00 | $0 | See footnotes | 01/29/2010 |