| Relationships | Role | Relationship Start | Relationship End |
| Gsam Gen-Par, L.L.C. | Parent | 6/17/2015 | |
| Peg Combo Ke Lp | Parent | 1/1/2009 | |
| Goldman Sachs Private Equity Concentrated Opportunities Advisors, L.L.C. | Parent | 9/21/2008 | 6/16/2015 |
| Goldman Sachs Private Equity Concentrated Energy Advisors, L.L.C. | Parent | 9/21/2008 | 6/15/2015 |