| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ENERGY AFRICA UK LIMITED | 02592792 | 18/09/2008 | Dissolved |
| GENERAL MINING UNION CORPORATION (UK) LIMITED | 00738594 | 18/09/2008 | Dissolved |
| PLANET OIL LIMITED | 03460558 | 18/09/2008 | Strike Off |
| TULLOW (EA) HOLDINGS LIMITED | FC032888 | 05/11/2015 | Bronze |
| TULLOW CMS (NORTH SEA) LIMITED | 08593556 | 23/07/2013 | Dissolved |
| TULLOW COTE D'IVOIRE EXPLORATION LIMITED | FC032887 | 05/11/2015 | Dissolved |
| TULLOW COTE D'IVOIRE LIMITED | FC032883 | 05/11/2015 | One Red Flag |
| TULLOW EXPLORATION & PRODUCTION UK LIMITED | SC359143 | 30/06/2011 | Dissolved |
| TULLOW MADAGASCAR LIMITED | FC032885 | 05/11/2015 | Dissolved |
| TULLOW OIL (INTERNATIONAL) NORGE LIMITED | 08029991 | 21/01/2013 | Dissolved |
| TULLOW OIL TS LIMITED | 07117038 | 25/08/2010 | Dissolved |
| UNITRUST HOLDINGS LIMITED | 02623193 | 18/09/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BP GAS MARKETING LIMITED | 00908982 | 01/08/2005 | 07/07/2006 | Silver |
| BP INVESTMENTS ASIA LIMITED | 05639411 | 29/11/2005 | 07/07/2006 | Silver |
| BP JAPAN TRADING LIMITED | 01749226 | 01/08/2005 | 07/07/2006 | Dissolved |
| BP OIL INTERNATIONAL LIMITED | 00322365 | 01/05/2005 | 07/07/2006 | Gold |
| BRITANNIC ENERGY TRADING LIMITED | 01378710 | 01/08/2005 | 07/07/2006 | Gold |
| BRITANNIC STRATEGIES LIMITED | SC123106 | 01/08/2005 | 07/07/2006 | Amber |
| BRITANNIC TRADING LIMITED | 00871912 | 01/08/2005 | 07/07/2006 | Gold |
| ENI HEWETT LIMITED | SC090159 | 18/09/2008 | 28/11/2008 | Silver |
| G4S LIMITED | 04992207 | 01/01/2017 | 20/06/2017 | Bronze |
| PLANET OIL INTERNATIONAL LIMITED | 03589112 | 18/09/2008 | 17/07/2017 | Dissolved |
| TULLOW CONGO LIMITED | FC032827 | 15/10/2015 | 08/11/2017 | Dissolved |
| TULLOW CÔTE D'IVOIRE ONSHORE LIMITED | 10233930 | 01/08/2016 | 17/07/2017 | Amber |
| TULLOW EG EXPLORATION LIMITED | 10332225 | 13/10/2016 | 17/07/2017 | Dissolved |
| TULLOW EQUATORIAL GUINEA LIMITED | FC032828 | 15/10/2015 | 25/10/2017 | Dissolved |
| TULLOW GABON HOLDINGS LIMITED | FC032829 | 15/10/2015 | 25/10/2017 | Bronze |
| TULLOW GABON LIMITED | FC032832 | 15/10/2015 | 25/10/2017 | Bronze |
| TULLOW GAMBIA LIMITED | 10233941 | 01/08/2016 | 17/07/2017 | Dissolved |
| TULLOW GREENLAND EXPLORATION LIMITED | 07781896 | 01/11/2011 | 17/07/2017 | Dissolved |
| TULLOW GROUP SERVICES LIMITED | 05660209 | 18/09/2008 | 17/07/2017 | Amber |
| TULLOW GUINEA LIMITED | 08233451 | 02/11/2012 | 17/07/2017 | Dissolved |
| TULLOW JAMAICA LIMITED | 09162755 | 24/09/2014 | 17/07/2017 | Dissolved |
| TULLOW MAURITANIA LIMITED | FC032830 | 15/10/2015 | 06/11/2017 | Amber |
| TULLOW MOZAMBIQUE LIMITED | 07672804 | 27/09/2011 | 17/07/2017 | Amber |
| TULLOW NAMIBIA LIMITED | FC032826 | 15/10/2015 | 25/10/2017 | Bronze |
| TULLOW NEW VENTURES LIMITED | 10233912 | 15/08/2016 | 17/07/2017 | Silver |
| TULLOW OIL (JERSEY) LIMITED | FC033628 | 18/08/2016 | 11/12/2017 | Dissolved |
| TULLOW OIL 100 LIMITED | 07086877 | 08/01/2010 | 17/07/2017 | Dissolved |
| TULLOW OIL 101 LIMITED | 07639401 | 14/06/2011 | 19/01/2017 | Dissolved |
| TULLOW OIL FINANCE LIMITED | 08107505 | 11/10/2012 | 17/07/2017 | Bronze |
| TULLOW OIL PLC | 03919249 | 01/09/2008 | 20/06/2017 | Silver |
| TULLOW OIL SK LIMITED | 05287330 | 18/09/2008 | 17/07/2017 | Amber |
| TULLOW OIL SNS LIMITED | 05064884 | 18/09/2008 | 17/07/2017 | Dissolved |
| TULLOW OIL SPE LIMITED | 04609980 | 18/09/2008 | 17/07/2017 | Gold |
| TULLOW SENEGAL LIMITED | FC032831 | 15/10/2015 | 25/10/2017 | Dissolved |
| TULLOW URUGUAY LIMITED | 08107466 | 17/07/2012 | 19/12/2017 | Gold |