| HARBOUR ENERGY SECRETARIES LIMITED ACTIVE | Secretary | 31 May 2022 | | | | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| BENJAMIN, Rachel Abigail ACTIVE | Director | 14 Sep 2026 | | England | March 1979 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| LANDES, Howard Ralph ACTIVE | Director | 15 Apr 2021 | | United Kingdom | December 1975 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| KAWAN, Heather Diane RESIGNED | Secretary | 16 Jan 2012 | 31 Jan 2014 | | | 23, Lower Belgrave Street, London, SW1W 0NR |
| 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 |
| VICKERS, Julie Alison RESIGNED | Secretary | 18 Jan 2017 | 01 Nov 2018 | | | 23, Lower Belgrave Street, London, SW1W 0NR, United Kingdom |
| WALMSLEY, Alan Richard RESIGNED | Secretary | 23 Feb 2004 | 16 Jan 2007 | | | 228 Lyndhurst Avenue, Woodlawn Park, Twickenham, Middlesex, TW2 6BS |
| WHYMS, Eugene Gregory RESIGNED | Secretary | 16 Jan 2007 | 16 Jan 2012 | | | 23, Lower Belgrave Street, London, SW1W 0NR |
| ALLAN, Robert Andrew RESIGNED | Director | 15 Oct 2012 | 29 May 2015 | United Kingdom | December 1959 | 23, Lower Belgrave Street, London, SW1W 0NR |
| BOOTH, Alan RESIGNED | Director | 16 Jan 2007 | 16 Jan 2012 | United Kingdom | March 1958 | 23, Lower Belgrave Street, London, SW1W 0NR |
| CLARK, James Anthony RESIGNED | Director | 27 Oct 2009 | 16 Jan 2012 | England | September 1950 | 23, Lower Belgrave Street, London, SW1W 0NR |
| COX, Steve RESIGNED | Director | 12 Dec 2024 | 09 Sep 2026 | Indonesia | May 1968 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| DODWORTH, Michael, Me RESIGNED | Director | 23 Feb 2004 | 06 Sep 2004 | Scotland | March 1948 | 129, Sinclair Street, Helensburgh, Argyle & Bute, G84 9AT |
| DOLAN, Peter RESIGNED | Director | 29 Sep 2004 | 16 Jan 2007 | United Kingdom | March 1944 | Woodside, 33 Montpelier Row, Twickenham, TW1 2NQ |
| DORE, Graham RESIGNED | Director | 16 Jan 2007 | 16 Jan 2012 | United Kingdom | December 1962 | 23, Lower Belgrave Street, London, SW1W 0NR |
| DURRANT, Anthony Richard Charles RESIGNED | Director | 16 Jan 2012 | 29 May 2015 | United Kingdom | August 1958 | 23, Lower Belgrave Street, London, SW1W 0NR |
| GIBB, Andrew George RESIGNED | Director | 18 Jan 2017 | 15 Apr 2021 | United Kingdom | October 1968 | 23, Lower Belgrave Street, London, SW1W 0NR, United Kingdom |
| HAWKINGS, Neil RESIGNED | Director | 16 Jan 2012 | 29 May 2015 | United Kingdom | March 1961 | 23, Lower Belgrave Street, London, SW1W 0NR |
| HUDDLE, Stephen Charles RESIGNED | Director | 16 Jan 2012 | 29 May 2015 | England | February 1951 | 23, Lower Belgrave Street, London, SW1W 0NR |
| KAUSCHUS, Andreas RESIGNED | Director | 27 Apr 2026 | 14 Sep 2026 | United Kingdom | February 1978 | 151, Buckingham Palace Road, London, SW1W 9SZ, United Kingdom |
| KIRK, Philip Andrew RESIGNED | Director | 15 Apr 2021 | 28 Feb 2022 | England | May 1966 | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| KNOWLES, Michael Gordon RESIGNED | Director | 23 Feb 2004 | 16 Dec 2006 | | November 1944 | Mead Cottage 2 Haywain, Oxted, Surrey, RH8 9LL |
| KRANE, Alexander Lorentzen RESIGNED | Director | 15 Apr 2021 | 12 Dec 2024 | Norway | March 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| LOCKETT, Simon Charles RESIGNED | Director | 16 Jan 2012 | 15 Aug 2014 | England | September 1964 | 23, Lower Belgrave Street, London, SW1W 0NR |
| LODGE, Andrew Geoffrey RESIGNED | Director | 16 Jan 2012 | 29 May 2015 | England | June 1956 | 23, Lower Belgrave Street, London, SW1W 0NR |
| MILLWOOD HARGRAVE, Martyn Frederick RESIGNED | Director | 19 Mar 2004 | 16 Jan 2007 | United Kingdom | February 1958 | Parkside House, 32 Ashley Road, Walton On Thames, Surrey, KT12 1HS |
| 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 |
| SUTTIE, Laura Anne RESIGNED | Director | 12 Dec 2024 | 27 Apr 2026 | United Kingdom | December 1980 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| WHEATON, Stuart Royston RESIGNED | Director | 09 Nov 2021 | 29 Sep 2023 | United Kingdom | September 1966 | 23, Lower Belgrave Street, London, SW1W 0NR, England |
| WHYMS, Eugene Gregory RESIGNED | Director | 16 Jan 2007 | 16 Jan 2012 | United Kingdom | July 1957 | 23, Lower Belgrave Street, London, SW1W 0NR |