| Relationships | Role | Relationship Start | Relationship End |
| Dresdner Kleinwort Luminary Inc. | Parent | 3/3/2014 | |
| Sterling Energy Ii Llc | Parent | 5/29/2012 | |
| Special Situations Investing Group Iii, Inc. | Parent | 12/27/2011 | 5/28/2012 |
| Relationships | Role | Relationship Start | Relationship End |
| Dresdner Kleinwort Luminary Inc. | Parent | 3/3/2014 | |
| Sterling Energy Ii Llc | Parent | 5/29/2012 | |
| Special Situations Investing Group Iii, Inc. | Parent | 12/27/2011 | 5/28/2012 |