| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADRIAPET (ITALY) LIMITED | 04993520 | 19/01/2005 | Dissolved |
| ADRIAPET LIMITED | 04652016 | 19/01/2005 | Dissolved |
| AMARIS ENERGY & FINANCE LIMITED | 04205988 | 25/04/2001 | Dissolved |
| AMARIS ENERGY & FINANCE LIMITED | 04205988 | 16/11/2001 | Dissolved |
| OIL & GAS INVESTMENTS LIMITED. | 04651928 | 03/04/2003 | Dissolved |
| SOLENT EXPLORATION INVESTMENTS LIMITED | 05120554 | 06/05/2004 | Dissolved |
| SOLENT EXPLORATION INVESTMENTS LIMITED | 05120554 | 06/05/2004 | Dissolved |
| SOLENT EXPLORATION LIMITED | 05121128 | 06/05/2004 | Dissolved |
| SOLENT EXPLORATION LIMITED | 05121128 | 06/05/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADRIAPET LIMITED | 04652016 | 27/12/2013 | 06/01/2014 | Dissolved |
| ATI OIL (ONSHORE) LIMITED | 05214052 | 25/08/2004 | 24/07/2013 | Dissolved |
| ATI OIL (ONSHORE) LIMITED | 05214052 | 10/11/2005 | 24/07/2013 | Dissolved |
| ATI OIL E&P LIMITED | 06749735 | 14/11/2008 | 24/07/2013 | Dissolved |
| ATI OIL E&P LIMITED | 06749735 | 14/11/2008 | 24/07/2013 | Dissolved |
| ATI OIL ITALY LIMITED | 06749686 | 14/11/2008 | 24/07/2013 | Dissolved |
| ATI OIL ITALY LIMITED | 06749686 | 14/11/2008 | 24/07/2013 | Dissolved |
| BALNAPALING ENERGY HOLDINGS LIMITED | 04329897 | 16/01/2003 | 24/07/2013 | Dissolved |
| CABOT ENERGY LIMITED | 02933545 | 16/01/2003 | 03/07/2012 | One Red Flag |
| CABOT ENERGY LIMITED | 02933545 | 25/08/2005 | 23/07/2013 | One Red Flag |
| NIGG ENVIRONMENTAL SERVICES LIMITED | 04330058 | 16/01/2003 | 24/07/2013 | Dissolved |
| NORTHERN PETROLEUM (UK) LIMITED | 03970675 | 16/01/2003 | 24/06/2013 | One Red Flag |
| NORTHERN PETROLEUM (UK) LIMITED | 03970675 | 08/12/2003 | 24/07/2013 | One Red Flag |
| NORTHERN PETROLEUM E&P HOLDINGS LIMITED | 03971175 | 16/01/2003 | 24/07/2013 | Dissolved |
| NORTHERN PETROLEUM E&P HOLDINGS LIMITED | 03971175 | 24/11/2003 | 24/07/2013 | Dissolved |
| NORTHERN PETROLEUM LIMITED | 04993628 | 07/01/2004 | 24/07/2013 | Dissolved |
| NORTHERN PETROLEUM NEW VENTURES LIMITED | 05214033 | 25/08/2004 | 24/07/2013 | Dissolved |
| NORTHERN PETROLEUM NEW VENTURES LIMITED | 05214033 | 10/11/2005 | 24/07/2013 | Dissolved |
| NORTHPET INVESTMENTS LIMITED | 05220748 | 02/09/2004 | 24/07/2013 | Strike Off |
| NP NETHERLANDS LIMITED | 04993632 | 10/11/2004 | 24/07/2013 | One Red Flag |
| NP OFFSHORE HOLDINGS (UK) LIMITED | 04993507 | 19/03/2004 | 24/07/2013 | Dissolved |
| NP OFFSHORE HOLDINGS (UK) LIMITED | 04993507 | 19/03/2004 | 25/07/2013 | Dissolved |
| NP OIL & GAS HOLDINGS LIMITED | 04991255 | 07/01/2004 | 24/07/2013 | Amber |
| NP OIL & GAS HOLDINGS LIMITED | 04991255 | 07/01/2004 | 24/07/2013 | Amber |
| POZAS LIMITED | 05081705 | 23/04/2004 | 24/07/2013 | Dissolved |
| UKOG (GB) LIMITED | 04050227 | 25/07/2006 | 24/07/2013 | Gold |
| UKOG SOLENT LIMITED | 05000092 | 25/07/2006 | 24/07/2013 | Dissolved |
| UKOG WEALD LIMITED | 04991234 | 25/07/2006 | 24/07/2013 | Dissolved |