| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Aberuchill Ltd | SC076665 | 16/02/2009 | Dissolved |
| Rowan (Gibraltar) Ltd | FC029786 | 01/09/2010 | Dissolved |
| Rowan Norway Inc | FC029787 | 01/09/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH AMERICAN OFFSHORE LIMITED | 01937517 | 30/06/2010 | 31/08/2012 | Dissolved |
| ROWAN COMPANIES LIMITED | 07805263 | 01/11/2011 | 04/05/2012 | Dissolved |
| ROWAN DRILLING (UK) LIMITED | SC061864 | 01/04/2005 | 31/08/2012 | Insolvent |
| ROWAN DRILLING AMERICAS LIMITED | 08140885 | 12/07/2012 | 31/08/2012 | Dissolved |
| ROWAN DRILLING US LIMITED | 08140883 | 12/07/2012 | 31/08/2012 | Dissolved |
| ROWAN NO.1 LIMITED | 08026104 | 12/06/2012 | 31/08/2012 | Dissolved |
| ROWAN NO.2 LIMITED | 08026111 | 08/05/2012 | 31/08/2012 | Dissolved |