| HARBOUR ENERGY SECRETARIES LIMITED ACTIVE | Secretary | 31 May 2022 | | | | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| KAUSCHUS, Andreas ACTIVE | Director | 27 Apr 2026 | | United Kingdom | February 1978 | 151, Buckingham Palace Road, London, SW1W 9SZ, United Kingdom |
| LANDES, Howard Ralph ACTIVE | Director | 15 Apr 2021 | | United Kingdom | December 1975 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| CORSBY, Gillian RESIGNED | Secretary | | 30 Aug 1996 | | | 8 Lincoln Gardens, Birchington-On-Sea, Kent, CT7 9SW |
| GARRATT, Heather Diane RESIGNED | Secretary | 12 Jul 2006 | 14 Jul 2010 | | | 23 Lower Belgrave Street, London, SW1W 0NR |
| HUDDLE, Stephen Charles RESIGNED | Secretary | 29 Mar 2006 | 12 Jul 2006 | | | 21 Dunsany Road, London, W14 0JP |
| KAWAN, Heather RESIGNED | Secretary | 12 Sep 2011 | 31 Jan 2014 | | | 23 Lower Belgrave Street, London, SW1W 0NR |
| PARSONS, Lisa Julia RESIGNED | Secretary | 18 Jun 1999 | 29 Mar 2006 | | | Shawfield Cottage, 109 Lansdowne Road, Purley, Surrey, CR8 2PE |
| RICKARD, Rachel Abigail RESIGNED | Secretary | 31 Jan 2014 | 18 Jan 2017 | | | 23 Lower Belgrave Street, London, SW1W 0NR |
| ROSE, Daniel Alexander RESIGNED | Secretary | 01 Nov 2018 | 31 May 2022 | | | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| SHEPHERD, Nicholas Keith RESIGNED | Secretary | 30 Aug 1996 | 18 Jun 1999 | | | 55 Duke Road, London, W4 2BN |
| VICKERS, Julie Alison RESIGNED | Secretary | 18 Jan 2017 | 01 Nov 2018 | | | 23, Lower Belgrave Street, London, SW1W 0NR, United Kingdom |
| VICKERS, Julie RESIGNED | Secretary | 14 Jul 2010 | 12 Sep 2011 | | | 23 Lower Belgrave Street, London, SW1W 0NR |
| ALLAN, Robert Andrew RESIGNED | Director | 15 Oct 2012 | 25 Jun 2020 | United Kingdom | December 1959 | 23 Lower Belgrave Street, London, SW1W 0NR |
| ALLAN, Robert Andrew RESIGNED | Director | 15 Jun 2009 | 16 Jul 2010 | Singapore | December 1959 | 435 Orchard Road, #22-02 Wisma Atria, Singapore, 238877, Singapore |
| BOOT, Jon Hendrik RESIGNED | Director | 20 Nov 2009 | 01 Dec 2012 | Scotland | January 1968 | 53, Blenheim Place, Aberdeen, Scotland, AB25 2DZ, United Kingdom |
| DURRANT, Anthony Richard Charles RESIGNED | Director | 30 Jun 2005 | 16 Dec 2020 | United Kingdom | August 1958 | 23 Lower Belgrave Street, London, SW1W 0NR |
| FORSYTH, Julie Elizabeth RESIGNED | Director | 20 May 2015 | 14 Feb 2020 | Scotland | March 1969 | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| FREEBORN, Edward RESIGNED | Director | 30 Jun 1997 | 24 Mar 1999 | | April 1949 | Little Hickmotts, Summerhill Road, Marden, Tonbridge, Kent, TN12 9DB |
| GIBB, Andrew George RESIGNED | Director | 18 Jan 2017 | 15 Apr 2021 | United Kingdom | October 1968 | 23, Lower Belgrave Street, London, SW1W 0NR, United Kingdom |
| GRIFFIN, Dean Geoffrey RESIGNED | Director | 30 Jun 2015 | 21 Jul 2021 | United Kingdom | September 1969 | 23 Lower Belgrave Street, London, SW1W 0NR |
| HAWKINGS, Neil RESIGNED | Director | 15 Jun 2009 | 30 Jun 2016 | United Kingdom | March 1961 | 23 Lower Belgrave Street, London, SW1W 0NR |
| HAYTHORNTHWAITE, Richard Neil RESIGNED | Director | 18 Dec 1995 | 30 Sep 1997 | England | December 1956 | 25 Ponsonby Terrace, London, SW1P 4PZ |
| HEATH, John Antony RESIGNED | Director | | 30 Jun 1997 | United Kingdom | June 1937 | Toddington Mill, Tewkesbury Road Toddington, Cheltenham, Gloucestershire, GL54 5DG |
| HUDDLE, Stephen Charles RESIGNED | Director | 15 Jun 2009 | 29 May 2015 | England | February 1951 | 23, Lower Belgrave Street, London, SW1W 0NR |
| JAMIESON, Charles James Auldjo RESIGNED | Director | | 30 Jun 2005 | United Kingdom | September 1944 | Dipley Farm, Dipley Common, Hartley Wintney, Hants, RG27 8JS |
| KIRK, Philip Andrew RESIGNED | Director | 15 Apr 2021 | 28 Feb 2022 | England | May 1966 | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| KRANE, Alexander Lorentzen RESIGNED | Director | 15 Apr 2021 | 12 Dec 2024 | Norway | March 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| LANDER, John Hugh Russell RESIGNED | Director | 10 Mar 1995 | 18 Dec 1995 | England | February 1944 | Camelot, 26 The Island, Thames Ditton, Surrey, KT7 0SH |
| LOCKETT, Simon Charles RESIGNED | Director | 30 Jun 2005 | 15 Aug 2014 | England | September 1964 | 23 Lower Belgrave Street, London, SW1W 0NR |
| LODGE, Andrew Geoffrey RESIGNED | Director | 15 Jun 2009 | 30 Jun 2015 | England | June 1956 | 23 Lower Belgrave Street, London, SW1W 0NR |
| LOWDEN, Stephen Jonathan RESIGNED | Director | 30 Sep 1997 | 01 Nov 2000 | | June 1959 | Sunnyside Cottage, Den Lane, Collier Street, Marden Kent, TN12 9FX |
| ORBELL, Gerald, Doctor RESIGNED | Director | 03 Aug 1994 | 10 Mar 1995 | England | February 1947 | 45 The Park, Great Bookham, Leatherhead, Surrey, KT23 3LN |
| RICKARD, Rachel Abigail RESIGNED | Director | 29 May 2015 | 18 Jan 2017 | England | March 1979 | 23 Lower Belgrave Street, London, SW1W 0NR |
| ROSE, Richard Andrew RESIGNED | Director | 01 Oct 2014 | 15 Apr 2021 | England | November 1972 | 23 Lower Belgrave Street, London, SW1W 0NR |
| SHAW, Roland Clark RESIGNED | Director | | 03 Aug 1994 | | October 1921 | 23 Lower Belgrave Street, London, SW1W 0NW |
| SKITMORE, Michael James RESIGNED | Director | 19 Jan 2012 | 20 May 2015 | Aberdeenshire | December 1955 | Blenheim Gate, 53 Blenheim Place, Aberdeen, AB25 2DZ, Scotland |
| SUTTIE, Laura Anne RESIGNED | Director | 12 Dec 2024 | 27 Apr 2026 | United Kingdom | December 1980 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| VAN DER WELLE, John Alexander RESIGNED | Director | 30 Apr 1999 | 30 Jun 2005 | United Kingdom | May 1955 | Northlands 22 Sandpit Lane, St. Albans, Hertfordshire, AL1 4HL |
| WEBSTER, Gareth Peter RESIGNED | Director | 14 Feb 2020 | 02 Jul 2021 | United Kingdom | June 1980 | 23, Lower Belgrave Street, London, England And Wales, SW1W 0NR, United Kingdom |
| WHEATON, Stuart Royston RESIGNED | Director | 20 May 2015 | 01 Jul 2018 | United Kingdom | September 1966 | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| WILLIAMS, Paul David RESIGNED | Director | 01 Jul 2018 | 02 Jul 2021 | England | March 1963 | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| WILSON, Nigel John RESIGNED | Director | 15 Jun 2009 | 01 Dec 2012 | Uk | April 1957 | 53, Blenheim Place, Aberdeen, Scotland, AB25 2DZ, United Kingdom |