| Adam Charles Little | Director | 3 Jan 2005 | 31 Mar 2005 | British | 75 years |
| Andrea Margaret Thomas | Secretary | 21 Jul 2008 | 23 Mar 2009 | Other | - |
| Andrew Stewart Mackenzie | Director | 1 Sept 2001 | 30 Dec 2001 | British | 70 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | Other | - |
| Colin Peter Saunders | Director | 2 Feb 2001 | 1 Dec 2004 | British | 78 years |
| David Arthur Miller | Director | 1 Feb 2005 | 10 Oct 2005 | Us Citizen | 67 years |
| David Arthur Miller | Director | 1 Jul 2004 | 1 Feb 2005 | Us | 67 years |
| David Keith Peattie | Director | 30 Dec 2001 | 1 May 2003 | British | 72 years |
| Dawn Noel | Secretary | 1 Feb 2006 | 3 Nov 2006 | British | - |
| Didier Baudrand | Director | 25 Apr 2005 | 6 Oct 2005 | French | 72 years |
| Francis William Michael Starkie | Director | 22 Aug 2007 | 30 Sept 2009 | British | 77 years |
| Graham Robert Hunt | Director | 1 Oct 2001 | 31 Mar 2004 | British | 80 years |
| Janet Elvidge | Secretary | 3 Nov 2006 | 21 Jul 2008 | Other | - |
| John Harold Bartlett | Director | 1 Dec 2015 | 31 Dec 2017 | British | 73 years |
| Madeleine Emily Rudge | Director | 1 Feb 2021 | 9 Sept 2021 | British | 43 years |
| Mark Louis Noetzel | Director | 2 Feb 2001 | 1 Sept 2001 | Us Citizen | 69 years |
| Melrose Oil Trading Company Limited | Corporate Director | 6 Oct 2005 | 12 Dec 2008 | United Kingdom | - |
| Nigel John Wright | Director | 1 Feb 2005 | 6 Oct 2005 | British | 68 years |
| Rita Elizabeth Griffin | Director | 1 Jan 2016 | 1 Jan 2016 | American | 63 years |
| Rita Elizabeth Griffin | Director | 18 Jan 2016 | 1 Sept 2020 | American | 63 years |
| Robert Carl Fearnley | Director | 22 Aug 2007 | 10 Oct 2011 | British | 63 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 9 Aug 2013 | British | 60 years |
| Ronald Melvyn Stott | Director | 10 Oct 2005 | 1 Dec 2015 | British | 70 years |
| Steven Kyle Welch | Director | 1 May 2003 | 10 Mar 2005 | Us Citizen | 75 years |
| Terence Michael Thornton | Director | 9 Aug 2013 | 1 Feb 2021 | British | 63 years |
| Thomas C Muething | Director | 1 Feb 2005 | 6 Oct 2005 | American | 70 years |
| Yasin Stanley Ali | Secretary | 2 Feb 2001 | 30 Jun 2010 | Other | - |