| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 02/01/2021 | MPLX LP | MPLX | Disposition | TexNew Mex Units | 80k | $0.00 | $0 | See Footnotes (1) (2) (3) | 02/01/2021 |
| 07/31/2020 | MPLX LP | MPLX | Disposition | Common Units (Limited Partner Interests) | 18.6M | $0.00 | $0 | See Footnotes | 07/31/2020 |
| 07/31/2020 | MPLX LP | MPLX | Disposition | Common Units (Limited Partner Interests) | 18.6M | $0.00 | $0 | See Footnotes | 07/31/2020 |
| 07/30/2019 | MPLX LP | MPLX | Grant | Common Units (Limited Partner Interests) | 161.3M | $0.00 | $0 | See Footnotes | 07/30/2019 |
| 07/30/2019 | MPLX LP | MPLX | Grant | TexNew Mex Units | 80k | $0.00 | $0 | See Footnotes | 07/30/2019 |
| 07/30/2019 | MPLX LP | MPLX | Grant | Special Limited Partner Interest | 1 | $0.00 | $0 | See Footnotes | 07/30/2019 |
| 02/01/2018 | MPLX LP | MPLX | Grant | Common Units (Limited Partner Interests) | 386.6M | $0.00 | $0 | See Footnotes | 02/01/2018 |
| 09/01/2017 | MPLX LP | MPLX | Grant | Common Units (Limited Partner Interests) | 18.5M | $0.00 | $0 | See Footnotes | 09/01/2017 |
| 03/01/2017 | MPLX LP | MPLX | Grant | Common Units (Limited Partner Interests) | 13M | $0.00 | $0 | See Footnotes | 03/01/2017 |
| 09/02/2016 | MPLX LP | MPLX | Disposition | Class A Units | 28.6M | $0.00 | $0 | See Footnotes | 09/02/2016 |
| 03/31/2016 | MPLX LP | MPLX | Grant | Common Units (Limited Partner Interests) | 22.5M | $0.00 | $0 | See Footnotes | 03/31/2016 |
| 10/31/2012 | MPLX LP | MPLX | Grant | Subordinated Units (Limited Partner Interests) | 37M | $0.00 | $0 | See footnotes | 10/31/2012 |
| 10/31/2012 | MPLX LP | MPLX | Grant | Common Units (Limited Partner Interests) | 17.1M | $0.00 | $0 | See footnotes | 10/31/2012 |