| Relationships | Role | Relationship Start | Relationship End |
| Gsam Gen-Par, L.L.C. | Parent | 11/21/2016 | |
| Private Equity Concentrated Energy Ii Offshore Advisors, Inc. | Parent | 2/16/2010 | 11/20/2016 |
| Relationships | Role | Relationship Start | Relationship End |
| Gsam Gen-Par, L.L.C. | Parent | 11/21/2016 | |
| Private Equity Concentrated Energy Ii Offshore Advisors, Inc. | Parent | 2/16/2010 | 11/20/2016 |