| Relationships | Role | Relationship Start | Relationship End |
| Msip International Holdings Cooperatief U.A. | Parent | 11/10/2010 | 10/24/2014 |
| Msip Stratus B.V. | Subsidary | 6/4/2012 | 12/12/2012 |
| Madrilena Red De Gas Finance B.V. | Subsidary | 6/20/2012 | 7/11/2012 |
| Relationships | Role | Relationship Start | Relationship End |
| Msip International Holdings Cooperatief U.A. | Parent | 11/10/2010 | 10/24/2014 |
| Msip Stratus B.V. | Subsidary | 6/4/2012 | 12/12/2012 |
| Madrilena Red De Gas Finance B.V. | Subsidary | 6/20/2012 | 7/11/2012 |