| LONG, Jacqueline ACTIVE | Secretary | 03 May 2018 | | | | First Floor, North Wing, Lancaster House, Nunn Mills Road, Northampton, NN1 5PA, United Kingdom |
| HEPPENSTALL, Bruce Michael ACTIVE | Director | 02 Jun 2025 | | United Kingdom | May 1970 | First Floor, North Wing, Lancaster House, Nunn Mills Road, Northampton, NN1 5PA, United Kingdom |
| MILNE, James Huxley ACTIVE | Director | 11 Apr 2018 | | United Kingdom | January 1972 | First Floor, North Wing, Lancaster House, Nunn Mills Road, Northampton, NN1 5PA, United Kingdom |
| REID, Keith Alan ACTIVE | Director | 23 Apr 2019 | | United Kingdom | April 1980 | First Floor, North Wing, Lancaster House, Nunn Mills Road, Northampton, NN1 5PA, United Kingdom |
| DAWES, Julie Viviene RESIGNED | Secretary | 09 Mar 2001 | 18 Dec 2003 | | | Water Mill House, Haughton, Retford, Nottinghamshire, DN22 8DY |
| GOALBY, Stephen Vincent RESIGNED | Secretary | 18 Dec 2003 | 20 Sep 2016 | | | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| MARDON TAYLOR, Nicholas John RESIGNED | Secretary | 12 Sep 1994 | 01 Jun 1995 | | | Capel House, 83 Kew Green, Richmond, Surrey, TW9 3AH |
| OIL MANAGEMENT SERVICES LIMITED RESIGNED | Secretary | 01 Jun 1995 | 12 Sep 1995 | | | 2nd Floor 63 Duke Street, London, W1M 5DH |
| OIL MANAGEMENT SERVICES LIMITED RESIGNED | Secretary | 01 Jun 1995 | 09 Mar 2001 | | | 2nd Floor 63 Duke Street, London, W1M 5DH |
| ANTON, Richard Philip RESIGNED | Director | 25 Mar 1996 | 10 Sep 1996 | | November 1964 | 6 Larkfield Road, Richmond, Surrey, TW9 2PF |
| BEECROFT, Paul Adrian Barlow RESIGNED | Director | 30 Oct 1997 | 04 Jul 2003 | United Kingdom | May 1947 | 13 Hampstead Hill Gardens, London, NW3 2PH |
| BOSSHARD, Eric, Dr RESIGNED | Director | 12 Sep 1994 | 20 May 1995 | England | October 1941 | 53 Marlings Park Avenue, Chislehurst, Kent, BR7 6RD |
| BOYD, Henry Marlow RESIGNED | Director | 12 Sep 1994 | 06 Dec 2000 | | September 1941 | 16 Victoria Square, London, SW1W 0RA |
| COWELL, Michael John RESIGNED | Director | 29 Oct 2015 | 11 Apr 2018 | United Kingdom | April 1970 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| CROSS, David Andrew RESIGNED | Director | 16 May 2000 | 04 Jun 2004 | England | July 1951 | The Old Rectory, Hinton On The Green, Evesham, Worcestershire, WR11 2QU |
| DARBY, Joseph RESIGNED | Director | 01 Jan 2010 | 14 Oct 2015 | England | July 1948 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| DAVIES, William Cameron, Dr RESIGNED | Director | 12 Sep 1994 | 14 Oct 2015 | England | August 1943 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| FRASER, Peter Lovat, Lord RESIGNED | Director | 19 Jan 2001 | 06 May 2009 | Scotland | May 1945 | Slade House, Carmyllie, Arbroath, Angus, DD11 2RE |
| GOALBY, Stephen Vincent RESIGNED | Director | 16 May 2000 | 20 Sep 2016 | England | June 1948 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| GREGOR, Robert John RESIGNED | Director | 29 Oct 2015 | 11 Apr 2018 | United Kingdom | May 1969 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| HENDERSON, Julia Ann RESIGNED | Director | 01 Jun 2007 | 14 Oct 2015 | England | December 1960 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| HOLTON, Michael Damien RESIGNED | Director | 11 Apr 2018 | 01 Mar 2019 | England | May 1973 | First Floor 500 Pavilion Drive, Northampton Business Park, Northampton, NN4 7YJ, United Kingdom |
| JACKSON, Brian RESIGNED | Director | 06 Jun 2016 | 11 Apr 2018 | England | April 1968 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| JENKINSON, Paul Thomas Hardman RESIGNED | Director | 29 Oct 2015 | 11 Apr 2018 | England | June 1960 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| KAMEEN, Carl Stuart RESIGNED | Director | 01 May 2015 | 30 Apr 2016 | England | February 1974 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| LANDER, John Hugh Russell RESIGNED | Director | 04 Jun 2004 | 31 Oct 2012 | England | February 1944 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| LOWRY, Steven RESIGNED | Director | 29 Oct 2015 | 11 Apr 2018 | United Kingdom | November 1972 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| MARDON TAYLOR, Nicholas John RESIGNED | Director | 12 Sep 1994 | 25 Jun 1998 | | October 1944 | Capel House, 83 Kew Green, Richmond, Surrey, TW9 3AH |
| MCDOWELL, Roger Steven RESIGNED | Director | 01 Oct 2012 | 14 Oct 2015 | England | May 1955 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| O'BRIEN, Neil Christopher RESIGNED | Director | 01 Nov 2008 | 06 Nov 2015 | United Kingdom | January 1963 | Edwinstowe House, High Street, Edwinstowe, Mansfield, Nottinghamshire, NG21 9PR |
| OGILVY WATSON, Donald Edgar RESIGNED | Director | 01 Jun 1995 | 06 Dec 2000 | Ireland | May 1941 | Monalin House, Newtonmountkennedy Wicklow, Ireland, IRISH |
| OLDHAM, David Raymond RESIGNED | Director | 01 Jun 1995 | 14 Jul 2010 | United Kingdom | February 1937 | Edwinstowe House, High Street, Edwinstowe, Nottinghamshire, NG21 9PR |
| PICKERING, Stephen Shane RESIGNED | Director | 11 Apr 2018 | 30 May 2025 | United Kingdom | October 1969 | First Floor, 500 Pavilion Drive, Northampton Business Park, Northampton, NN4 7YJ, England |
| WHITE, David Harry, Sir RESIGNED | Director | 06 Dec 2000 | 12 May 2004 | United Kingdom | October 1929 | Whitehaven 6 Croft Road, Edwalton, Nottingham, Nottinghamshire, NG12 4BW |