| Relationships | Role | Relationship Start | Relationship End |
| Gsam Gen-Par, L.L.C. | Parent | 6/18/2015 | |
| Goldman Sachs Private Equity Group Master Fund Iv, Llc | Parent | 9/21/2008 | |
| Energy Private Equity Managers (Concentrated) Offshore Lp | Parent | 9/21/2008 | |
| Gs Concentrated Energy Offshore Holdings Advisors, Inc. | Parent | 9/21/2008 | 6/17/2015 |