| 2023-10-31 Option Award
 | 2023-11-02 4:25 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak GP Holdings LP Stonepeak GP Investors LLC
 Stonepeak GP Investors Holdings LP
 Stonepeak GP Investors Upper Holdings LP
 Stonepeak GP Investors Holdings Manager LLC
 Dorrell Michael B.
 See Remarks
 10% Owner
 | 1,367,531 | $0 | 40,439,858 (Indirect)
 | View | 
| 2023-07-31 Option Award
 | 2023-08-02 4:25 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak GP Holdings LP Stonepeak GP Investors LLC
 Stonepeak GP Investors Holdings LP
 Stonepeak GP Investors Upper Holdings LP
 Stonepeak GP Investors Holdings Manager LLC
 Dorrell Michael B.
 See Remarks
 10% Owner
 | 1,321,286 | $0 | 39,072,327 (Indirect)
 | View | 
| 2023-05-04 Option Award
 | 2023-05-08 4:15 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 28,403,130 | $0 | 204,744,400 (Direct)
 | View | 
| 2023-01-31 Option Award
 | 2023-02-02 4:32 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 1,276,605 | $0 | 37,751,040 (Direct)
 | View | 
| 2022-11-22 Option Award
 | 2022-11-22 4:39 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 27,442,638 | $0 | 176,341,270 (Direct)
 | View | 
| 2022-07-29 Option Award
 | 2022-08-02 4:30 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 27,442,638 | $0 | 148,898,632 (Direct)
 | View | 
| 2022-04-29 Option Award
 | 2022-05-03 4:45 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 24,721,910 | $0 | 121,455,994 (Direct)
 | View | 
| 2022-01-31 Option Award
 | 2022-02-02 4:15 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 24,502,356 | $0 | 96,734,084 (Direct)
 | View | 
| 2021-10-29 Option Award
 | 2021-11-02 4:30 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 10,832,186 | $0 | 72,231,728 (Direct)
 | View | 
| 2021-07-30 Option Award
 | 2021-08-03 5:24 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 8,012,850 | $0 | 61,399,542 (Direct)
 | View | 
| 2021-04-30 Option Award
 | 2021-05-04 4:35 pm
 | N/A N/A
 | Evolve Transition Infrastructure LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 13,763,249 | $0 | 53,386,692 (Direct)
 | View | 
| 2021-01-28 Option Award
 | 2021-02-01 5:29 pm
 | N/A N/A
 | Sanchez Midstream Partners LP | SNMP | Stonepeak Catarina Holdings LLC Stonepeak Catarina Upper Holdings LLC
 Stonepeak Infrastructure Fund (Orion AIV) LP
 Stonepeak Associates LLC
 Stonepeak GP Holdings LP
 Stonepeak GP Investors LLC
 Stonepeak GP Investors Manager LLC
 Dorrell Michael B.
 Stonepeak Texas Midstream Holdco LLC
 See Remarks
 10% Owner
 | 34,720,360 | $0 | 39,764,090 (Direct)
 | View |