| Alan Charles Williamson | Director | 10 Feb 2016 | 21 Feb 2019 | British | 61 years |
| Andrea Margaret Thomas | Secretary | 21 Jul 2008 | 23 Mar 2009 | Other | - |
| Andrew Stewart Mackenzie | Director | 1 Sept 2001 | 31 Jul 2004 | British | 70 years |
| Arthur John Stanbury Hooper | Director | 4 Dec 1992 | 7 Sept 1994 | British | 92 years |
| Brian Peevor | Secretary | 15 Jun 1993 | 4 Dec 1993 | British | - |
| Bryan Kaye Sanderson | Director | 4 Dec 1992 | 1 Oct 2000 | British | 86 years |
| Byron Elmer Grote | Director | 1 Oct 2000 | 21 Nov 2002 | British And Us Citiz | 78 years |
| Catherine Ann Mccann | Director | 18 Sept 2018 | 1 Jun 2023 | British | 60 years |
| Christopher John Bowlas | Director | 19 Oct 2011 | 26 May 2017 | British | 59 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | Other | - |
| Christopher Shaw Gibson Smith | Director | 1 Sept 1995 | 31 Aug 1997 | British | 81 years |
| Colin Peter Saunders | Director | 30 Dec 2001 | 1 Dec 2004 | British | 78 years |
| Colin Peter Saunders | Secretary | 1 May 1994 | 30 Dec 2001 | British | - |
| David Keith Peattie | Director | 1 Feb 2001 | 1 May 2003 | British | 72 years |
| Dawn Noel | Secretary | 1 Feb 2006 | 3 Nov 2006 | British | - |
| Francis William Michael Starkie | Director | 1 Jul 2007 | 30 Sept 2009 | British | 77 years |
| Gary Christian Greve | Director | 16 Jul 1997 | 30 Dec 1998 | Us Citizen | 77 years |
| Guy Moeyens | Director | 1 Aug 2006 | 1 Dec 2007 | Belgian | 61 years |
| Iain Cameron Conn | Director | 21 Nov 2002 | 30 Jun 2004 | British | 64 years |
| Janet Elvidge | Secretary | 3 Nov 2006 | 21 Jul 2008 | Other | - |
| John Gordon Sinclair Buchanan | Director | 4 Dec 1992 | 31 Aug 1995 | British | 83 years |
| John Keith Robinson | Director | 1 May 1993 | 1 Mar 1999 | Usa | 85 years |
| Joseph Alan Barlow | Director | 11 Feb 1994 | 31 Dec 1994 | British | 89 years |
| Madeleine Emily Rudge | Director | 1 Feb 2021 | 10 Jul 2025 | British | 43 years |
| Mark Louis Noetzel | Director | 1 Feb 2001 | 1 Sept 2001 | Us Citizen | 69 years |
| Melrose Oil Trading Company Limited | Corporate Director | 8 Feb 2007 | 13 Oct 2008 | United Kingdom | - |
| Michael Charles Buzzacott | Director | 4 Dec 1992 | 1 Feb 2004 | British | 79 years |
| Michael Ronald Levitton | Secretary | 4 Dec 1992 | 30 Apr 1994 | British | - |
| Nicholas Reginald Elmslie | Director | 1 Oct 2004 | 1 Aug 2006 | British | 69 years |
| Nicholas Reginald Elmslie | Director | 1 Apr 2011 | 1 Jun 2012 | British | 69 years |
| Nigel Clifford Dunn | Director | 26 May 2017 | 1 Sept 2018 | British | 59 years |
| Nigel Clifford Dunn | Director | 21 Feb 2019 | 31 Jan 2025 | British | 59 years |
| Paul Arthur Pearson | Director | 4 Dec 1992 | 2 Apr 1998 | British | 86 years |
| Reyad Fezzani | Director | 1 Aug 2006 | 8 Apr 2008 | British And Libyan | 60 years |
| Richard Lee Mcneel | Director | 1 Mar 1999 | 30 Dec 2001 | American | 81 years |
| Richard Mark Hookway | Director | 1 Feb 2004 | 1 Oct 2004 | British | 65 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 7 Oct 2014 | British | 60 years |
| Ronald Melvyn Stott | Director | 1 Sept 2004 | 1 Jan 2016 | British | 70 years |
| Stephen Raymond Pettit | Director | 4 Dec 1992 | 4 Dec 1994 | British | 75 years |
| Steven Kyle Welch | Director | 1 May 2003 | 1 Apr 2004 | Us Citizen | 75 years |
| Steven Kyle Welch | Director | 1 Sept 2004 | 1 Aug 2006 | Us Citizen | 75 years |
| Sue Hodel Rataj | Director | 8 Apr 2008 | 1 Apr 2011 | United States | 69 years |
| Terence Michael Thornton | Director | 7 Oct 2014 | 1 Feb 2021 | British | 63 years |
| Yasin Stanley Ali | Secretary | 30 Dec 2001 | 30 Jun 2010 | Other | - |
