| HARBOUR ENERGY SECRETARIES LIMITED ACTIVE | Secretary | 10 Oct 2022 | | | | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| BARR, Scott ACTIVE | Director | 12 Dec 2024 | | Scotland | July 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, United Kingdom |
| LANDES, Howard Ralph ACTIVE | Director | 20 Oct 2021 | | United Kingdom | December 1975 | 151, Buckingham Palace Road, London, SW1W 9SZ, United Kingdom |
| SCOTT, Russell ACTIVE | Director | 12 Dec 2024 | | Scotland | September 1973 | 151, Buckingham Palace Road, London, SW1W 9SZ, United Kingdom |
| CARLEY, Glen Robert RESIGNED | Secretary | | 14 Nov 1993 | | | 3602 Selinger Crescent, Regina, Saskatchewan, FOREIGN, Canada |
| FLETCHER, Angela Sarah Helen RESIGNED | Secretary | 05 Aug 2005 | 23 Apr 2014 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| GRIMSHAW, David RESIGNED | Secretary | 13 Aug 2003 | 30 Sep 2019 | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| LANDES, Howard Ralph RESIGNED | Secretary | 29 Sep 2019 | 10 Oct 2022 | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| OGILVIE, David Stewart RESIGNED | Secretary | 20 Oct 2006 | 01 Apr 2008 | | | 52 Hamilton Place, Aberdeen, Aberdeenshire, AB15 4BH |
| PASIEKA, James RESIGNED | Secretary | 12 Aug 1993 | 01 Oct 1994 | | | 3328 Queen Street, Regina Saskatchewan S4s 2e9, Canada, FOREIGN |
| PEPIN, Jean-Francois Jacques Basile RESIGNED | Secretary | 13 May 2013 | 14 Aug 2014 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| STIRRUP, Edith Jeannie RESIGNED | Secretary | 13 Aug 2003 | 30 Apr 2012 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| STOKELD, Michael Philip, Sol RESIGNED | Secretary | 07 Jan 1999 | 13 Aug 2003 | | | 35 The Meadows, Milltimber, Aberdeen, AB13 0JT |
| WARD, Elaine June RESIGNED | Secretary | 13 Aug 2003 | 13 Oct 2006 | | | 18 Balmoral Place, Aberdeen, Aberdeenshire, AB10 6HR |
| YOUNG, James Ernest RESIGNED | Secretary | 01 Oct 1994 | 09 Mar 1995 | | | 1777 Victoria Avenue, Regina, Saskatchewan, S4P 3C4, Canada |
| ZACHER, Robert Peter RESIGNED | Secretary | 09 Mar 1995 | 16 Apr 1996 | | | 1777 Victoria Avenue, Regina, Saskatchewan, S4P 3C4 |
| HACKWOOD SECRETARIES LIMITED RESIGNED | Nominee Secretary | 16 Apr 1996 | 07 Jan 1999 | | | One Silk Street, London, EC2Y 8HQ |
| ANDERSON, Robert Hendry RESIGNED | Director | 07 Sep 2009 | 13 May 2013 | Scotland | October 1956 | Portman House, 2 Portman Street, London, W1H 6DU |
| BOLEN, David Paul RESIGNED | Director | 07 Jan 1999 | 01 Jun 2001 | | December 1958 | 8 Angusfield Avenue, Aberdeen, AB15 6AQ |
| BOOTH, Martin Edward RESIGNED | Director | 31 Dec 1993 | 01 Aug 1995 | | March 1943 | 2600-205-5th Avenue S.W., Calgary, Alberta, T2P 2V7, Canada |
| BOURQUE, Robert Joseph RESIGNED | Director | 01 Aug 1995 | 31 Aug 1997 | | February 1940 | Eastwinds, Rockley New Road Christ Church, Barbados, FOREIGN |
| CARLEY, Glen Robert RESIGNED | Director | | 12 Aug 1993 | | September 1952 | 3602 Selinger Crescent, Regina, Saskatchewan, FOREIGN, Canada |
| CHENIER, David Eric RESIGNED | Director | 19 Apr 2012 | 01 Aug 2015 | Scotland | January 1962 | Portman House, 2 Portman Street, London, W1H 6DU |
| CONWAY, Christopher William RESIGNED | Director | 09 Apr 2010 | 30 Apr 2012 | England | January 1957 | Portman House, 2 Portman Street, London, W1H 6DU |
| ERIKSEN, Gisle RESIGNED | Director | 01 Jun 2001 | 14 Aug 2003 | | May 1963 | 1 Westerton Place, Cults, Aberdeen, AB15 9NS |
| FARTHING, David Andrew, Vivian RESIGNED | Director | 14 Nov 2008 | 09 Oct 2009 | Scotland | September 1957 | Ffyrling Dy, St. Eunans Road, Aboyne, Aberdeenshire, AB34 5HH, Scotland |
| FREDIN, Todd William RESIGNED | Director | 14 Aug 2003 | 31 Jan 2010 | | May 1954 | Portman House, 2 Portman Street, London, W1H 6DU |
| GAUTREY, Christopher RESIGNED | Director | 21 Jan 2004 | 07 Sep 2009 | England | December 1948 | 4 Packwood Mews, Humphris Street, Warwick, Warwickshire, CV34 5NG |
| HALLIWELL, Andrew Roy RESIGNED | Director | 05 Aug 2005 | 05 Mar 2010 | | March 1957 | Portman House, 2 Portman Street, London, W1H 6DU |
| HALLIWELL, Andrew Roy RESIGNED | Director | 14 Jan 2004 | 22 Mar 2004 | | March 1957 | 14 Westfield Terrace, Aberdeen, Aberdeenshire, AB25 2RU |
| HARRIS, Michael John RESIGNED | Director | 01 Nov 1998 | 07 Jan 1999 | | December 1963 | Braywood Oak Lodge Oakley Green Road, Oakley Green, Windsor, Berkshire, SL4 4PZ |
| HASTINGS, Andrew David Richard RESIGNED | Director | 09 Oct 2009 | 15 Jun 2018 | Scotland | February 1961 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| KENNEDY, Archibald Wood RESIGNED | Director | 22 Mar 2004 | 03 Apr 2009 | United Kingdom | June 1958 | The Garran, Crawton Bay, Stonehaven, Aberdeenshire, AB39 2TP |
| KING, Terri Gay RESIGNED | Director | 05 Jan 2017 | 30 Sep 2019 | United Kingdom | March 1961 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| KIRK, Philip Andrew RESIGNED | Director | 30 Sep 2019 | 28 Feb 2022 | England | May 1966 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| KNUDSON, Thomas Clifford RESIGNED | Director | 07 Jan 1999 | 01 Jul 2000 | | April 1946 | 6 St Marys Place, Kensington Green Marloes Road, London, W8 5UE |
| KRANE, Alexander Lorentzen RESIGNED | Director | 20 Oct 2021 | 12 Dec 2024 | Norway | March 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, United Kingdom |
| MACKLON, Dominic Edward RESIGNED | Director | 01 Aug 2015 | 05 Jan 2017 | Scotland | August 1969 | Portman House, 2 Portman Street, London, W1H 6DU |
| MAXSON, Page Frank RESIGNED | Director | 14 Aug 2003 | 22 Nov 2004 | | December 1960 | 5 Northcote Hill, Aberdeen, AB15 7TW |
| MCGEACHIE, Daniel RESIGNED | Director | 07 Jan 1999 | 10 Jun 2000 | | June 1935 | 27 Hitherwood Drive, London, SE19 1XA |
| MCMORRAN, James Deas RESIGNED | Director | 14 Aug 2003 | 31 Dec 2003 | | July 1957 | 5 Somers Crescent, London, W2 2PN |
| MCNAMARA, Charles Joseph Byrne RESIGNED | Director | 01 Aug 1995 | 01 Nov 1998 | | May 1941 | 3274 Westminster Road, Regina, Saskatchewan, S4V 0S2, Canada |
| MURPHY, Laurence RESIGNED | Director | 01 Nov 1998 | 07 Jan 1999 | | May 1951 | 6730 Lepine Court Sw, Calgary, Alberta T3e 6g3, Canada |
| OSBORNE, Andrew Jon RESIGNED | Director | 30 Sep 2019 | 26 Oct 2021 | United Kingdom | November 1969 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| PATTERSON, John RESIGNED | Director | 01 Nov 1998 | 07 Jan 1999 | | April 1949 | 35 Littleheath Lane, Cobham, Surrey, KT11 2QN |
| RAMSHAW, Roger Stephen RESIGNED | Director | 03 Sep 2002 | 31 Dec 2003 | Scotland | February 1949 | Broomwood, Ballater Road, Aboyne, Aberdeenshire, AB34 5HY |
| RENNER, Theodore Henry RESIGNED | Director | | 28 Jun 1993 | | May 1945 | 1777 Victoria Avenue, Regina, Saskatchwan S4p 3c4, FOREIGN, Canada |
| SCOTT, Russell RESIGNED | Director | 25 Sep 2018 | 30 Sep 2019 | Scotland | September 1973 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| SIMPSON, Katherine Susan RESIGNED | Director | 15 Jun 2018 | 22 May 2019 | United Kingdom | October 1961 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| SKJERVOY, Arild RESIGNED | Director | 14 Aug 2003 | 05 Aug 2005 | | November 1958 | 2 Macaulay Drive, Craigiebuckler, Aberdeen, AB15 8FL |
| STALKER, Ross Graham RESIGNED | Director | 31 Oct 2015 | 25 Sep 2018 | United Kingdom | October 1964 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| TAYLOR, Devon Mclaren RESIGNED | Director | 31 Dec 1993 | 01 Sep 1994 | | September 1942 | 12 Dillmont Drive, Suite 200, Columbus, Ohio, 43235, Usa |
| THEEDE, Steven Michael RESIGNED | Director | 01 Jul 2000 | 14 Aug 2003 | | March 1952 | Montpellier House, Templewood Lane, Stoke Poges, Buckinghamshire, SL2 4DA |
| THOMAS, Timothy James RESIGNED | Director | 01 Nov 1998 | 07 Jan 1999 | | May 1957 | 8 Ascot Mansions, Onslow Drive, Ascot, Berkshire, SL5 7UL |
| WARRENDER, John Mcandrew RESIGNED | Director | 14 Nov 2008 | 03 Jul 2013 | Scotland | July 1961 | Portman House, 2 Portman Street, London, W1H 6DU |
| WARWICK, David John RESIGNED | Director | 31 Dec 1993 | 30 Jun 1996 | | July 1948 | Littledean Ashgrove Road, Sevenoaks, Kent, TN13 1SU |
| WARWICK, Paul Cyril RESIGNED | Director | 03 Apr 2009 | 30 Apr 2012 | Scotland | April 1953 | Portman House, 2 Portman Street, London, W1H 6DU |
| WATKINS, George Edward RESIGNED | Director | 07 Jan 1999 | 03 Sep 2002 | United Kingdom | August 1943 | 12 Rubislaw Den South, Aberdeen, Aberdeenshire, AB15 4BB |
| WOLFE, Patrick RESIGNED | Director | 22 May 2019 | 30 Sep 2019 | Scotland | February 1963 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| WRIGHT, Michael Don RESIGNED | Director | 13 May 2013 | 29 Oct 2015 | Scotland | May 1964 | Portman House, 2 Portman Street, London, W1H 6DU |