| HARBOUR ENERGY SECRETARIES LIMITED ACTIVE | Secretary | 10 Oct 2022 | | | | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| DAVIES, Graeme John ACTIVE | Director | 02 Oct 2026 | | United Kingdom | May 1983 | 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, England |
| SCOTT, Russell ACTIVE | Director | 12 Dec 2024 | | Scotland | September 1973 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| BEDRI, Helena RESIGNED | Secretary | 14 Jul 1993 | 05 Sep 1993 | | | 29 Gainsborough Court, Leicester Road, New Barnet, Hertfordshire, EN5 5DG |
| BOON, Yves Marie Joseph Victor RESIGNED | Secretary | | 20 Dec 1993 | | | 1 Holywell, Hook Heath Road, Woking, Surrey, GU22 0LA |
| COOK, Thomas Edward RESIGNED | Secretary | 11 Nov 2002 | 13 Aug 2003 | | | Kinross, 3 Manor Lane, Gerrards Cross, Buckinghamshire, SL9 9NH |
| 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 | 30 Sep 2019 | 10 Oct 2022 | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| OGILVIE, David Stewart RESIGNED | Secretary | 13 Oct 2006 | 01 Apr 2008 | | | 52 Hamilton Place, Aberdeen, Aberdeenshire, AB15 4BH |
| PEPIN, Jean-Francois Jacques Basile RESIGNED | Secretary | 13 May 2013 | 14 Aug 2014 | | | Portman House 2 Portman Street, London, W1H 6DU |
| REDRUP, Leslie Charles Ernest RESIGNED | Secretary | | 31 Mar 1999 | | | Ashlyn House Estate Farm, South Drive Ossemsley, New Milton, Hampshire, BH25 5TL |
| STIRRUP, Edith Jeannie RESIGNED | Secretary | 13 Aug 2003 | 01 May 2012 | | | Portman House 2 Portman Street, London, W1H 6DU |
| STOKELD, Michael Philip, Sol RESIGNED | Secretary | 03 Sep 2002 | 13 Aug 2003 | | | 35 The Meadows, Milltimber, Aberdeen, AB13 0JT |
| TAPP, Robert John RESIGNED | Secretary | 20 Dec 1993 | 25 Oct 1996 | | | 5 The Grange, Grange Lane, Hartley Witney, Hampshire, RG27 8HH |
| WALKER, Nigel Francis Courtenay RESIGNED | Secretary | 30 May 1997 | 01 Oct 2002 | | | 15 Wildcroft Drive, Wokingham, Berkshire, RG40 3HY |
| WARD, Elaine June RESIGNED | Secretary | 13 Aug 2003 | 13 Oct 2006 | | | 18 Balmoral Place, Aberdeen, Aberdeenshire, AB10 6HR |
| WATSON, Susan Elizabeth RESIGNED | Secretary | 01 Apr 1999 | 15 Nov 2002 | | | Lambeck Horsell Park, Woking, Surrey, GU21 4LY |
| ALLEN, Nicholas David RESIGNED | Director | 01 May 2012 | 05 Jan 2017 | United Kingdom | December 1967 | Portman House 2 Portman Street, London, W1H 6DU |
| ANDERSON, Robert Hendry RESIGNED | Director | 07 Sep 2009 | 13 May 2013 | Scotland | October 1956 | Portman House 2 Portman Street, London, W1H 6DU |
| BALTESKARD, Birger RESIGNED | Director | 09 Mar 2017 | 30 Sep 2019 | Norway | September 1962 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| BARR, Scott RESIGNED | Director | 12 Dec 2024 | 02 Oct 2026 | Scotland | July 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| BROWN, David Andrew RESIGNED | Director | 01 Jan 1996 | 31 Dec 1998 | | June 1954 | Bassett 6 Engliff Lane, Pyrford, Surrey, GU22 8SU |
| BURNETT, Norman Lynn RESIGNED | Director | | 12 Dec 1994 | | July 1935 | Pine Court, Heathdown Road Pyrford, Woking, Surrey, GU22 8LX |
| CHAMBERLAIN, Virgil Ralph RESIGNED | Director | 14 Jul 1997 | 31 Jul 2000 | | September 1955 | Broad Eaves, 41 Mizen Way, Cobham, Surrey, KT11 2RL |
| CHENIER, David Eric RESIGNED | Director | 09 Oct 2009 | 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 |
| COOK, Thomas Edward RESIGNED | Director | 11 Nov 2002 | 14 Aug 2003 | | March 1955 | Kinross, 3 Manor Lane, Gerrards Cross, Buckinghamshire, SL9 9NH |
| EAST, Gordon Robin RESIGNED | Director | 03 Dec 2004 | 07 Jul 2006 | United Kingdom | June 1963 | Little England House, Little England, Othery, Bridgwater, Somerset, TA7 0QR |
| ERIKSEN, Gisle RESIGNED | Director | 03 Sep 2002 | 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 |
| FLESHER, Robert Gene RESIGNED | Director | 01 Oct 1996 | 31 Dec 1997 | | June 1951 | 29 Water Lane, Cobham, Surrey, KT11 2PA |
| FREDIN, Todd William RESIGNED | Director | 14 Aug 2003 | 31 Jan 2010 | | May 1954 | Thornton, 48 Ince Road Burwood Park, Walton On Thames, Surrey, KT12 5BJ |
| GAUTREY, Christopher RESIGNED | Director | 21 Jan 2004 | 07 Sep 2009 | England | December 1948 | 4 Packwood Mews, Humphris Street, Warwick, Warwickshire, CV34 5NG |
| GOFF, Gregory James RESIGNED | Director | 03 Sep 2002 | 14 Aug 2003 | | July 1956 | Wykehurst, Camp Road, Gerrards Cross, Buckinghamshire, SL9 7PB |
| GRIFFITHS, Malcolm David RESIGNED | Director | 03 Sep 2002 | 18 Sep 2003 | England | December 1951 | Orchard Hey, Ballinger Road South Heath, Great Missenden, Buckinghamshire, HP16 9QH |
| HALLIWELL, Andrew Roy RESIGNED | Director | 05 Aug 2005 | 05 Mar 2010 | | March 1957 | 18a Rubislaw Den South, Aberdeen, Aberdeenshire, AB15 4BB |
| HALLIWELL, Andrew Roy RESIGNED | Director | 14 Jan 2004 | 22 Mar 2004 | | March 1957 | 14 Westfield Terrace, Aberdeen, Aberdeenshire, AB25 2RU |
| HALLIWELL, Andrew Roy RESIGNED | Director | 11 Jun 2001 | 03 Sep 2002 | | March 1957 | 14 Westfield Terrace, Aberdeen, Aberdeenshire, AB25 2RU |
| HARRISON, Trevor Stewart RESIGNED | Director | 01 Jun 1995 | 23 Oct 2002 | United Kingdom | September 1944 | Pashley Down Montreal Road, Sevenoaks, Kent, TN13 2EP |
| HASTINGS, Andrew David Richard RESIGNED | Director | 09 Oct 2009 | 15 Jun 2018 | Scotland | February 1961 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| HEDRICK, Kirby Lee RESIGNED | Director | | 05 Sep 1993 | | May 1952 | Dana South Road, St Georges Hill, Weybridge, Surrey, KT13 0NA |
| HILL, James Charles RESIGNED | Director | | 31 May 1995 | | December 1935 | Mayfield Hawks Hill, Guildford Road, Fetcham, Surrey, KT22 9DY |
| HORNUNG, Marilyn Rae RESIGNED | Director | 24 Oct 2002 | 03 Dec 2004 | | August 1953 | 8 Mowden Hall Drive, Darlington, DL3 9BJ |
| JOHANSEN, Trond Erik RESIGNED | Director | 14 Aug 2006 | 01 Mar 2007 | | March 1962 | Leiteveien 19a, 4020 Stavanger, FOREIGN, Norway |
| 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 |
| KRANE, Alexander Lorentzen RESIGNED | Director | 20 Oct 2021 | 12 Dec 2024 | Norway | March 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| LEE, Nicholas Graeme RESIGNED | Director | 14 Aug 2006 | 15 Oct 2010 | | May 1959 | Portman House 2 Portman Street, London, W1H 6DU |
| LIDDELL, Richard Thomas RESIGNED | Director | 01 Aug 1996 | 31 Aug 1997 | | November 1947 | Griffiths Cross, Queensgate, Cobham, Surrey, KT11 2TG |
| MACKLON, Dominic Edward RESIGNED | Director | 01 Aug 2015 | 05 Jan 2017 | Scotland | April 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 |
| MCGEE, Henry Isaac RESIGNED | Director | 01 Aug 2000 | 03 Sep 2002 | | October 1954 | Dorney House, 11 Lytton Park, Sandy Lane, Cobham, Surrey, KT11 2HB |
| MCMORRAN, James Deas RESIGNED | Director | 14 Aug 2003 | 31 Dec 2003 | | July 1957 | 5 Somers Crescent, London, W2 2PN |
| MOTT, Richard Parker RESIGNED | Director | 13 Dec 1994 | 12 Jun 1998 | | May 1952 | Norfolk Farm House, 23 Norfolk Farm Road, Pyrford, Surrey, GU22 8LW |
| ONWUZULU, Nwora Maduka RESIGNED | Director | 24 Feb 1993 | 05 Sep 1993 | | August 1960 | 98 Ollerton Road, London, N11 2LA |
| OSBORNE, Andrew Jon RESIGNED | Director | 30 Sep 2019 | 26 Oct 2021 | United Kingdom | November 1969 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| PARKER, Billy Zane RESIGNED | Director | 05 Apr 1993 | 31 Aug 1994 | | April 1947 | Summerlee, Elmstead Road, West Byfleet, Surrey, KT14 6JB |
| PRENDERGAST, Stephen RESIGNED | Director | 01 Jun 1995 | 14 Nov 1997 | | January 1955 | 37 Shortheath Crest, Farnham, Surrey, GU9 8SB |
| RAMSHAW, Roger Stephen RESIGNED | Director | 03 Sep 2002 | 31 Dec 2003 | Scotland | February 1949 | Broomwood, Ballater Road, Aboyne, Aberdeenshire, AB34 5HY |
| RISLEY, Allyn Wayne RESIGNED | Director | 01 Sep 1994 | 14 Jul 1997 | | September 1950 | Summerlee, Elmstead Road, West Byfleet, Surrey, KT14 6JB |
| SANDSTAD, Brage Johannes RESIGNED | Director | 01 Jan 1998 | 03 Sep 2002 | | December 1953 | 37 Merton Hall Road, London, SW19 3PR |
| SCOTT, Russell RESIGNED | Director | 25 Sep 2018 | 30 Sep 2019 | Scotland | September 1973 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| SIEMENS, Stanford Arthur RESIGNED | Director | | 31 Jul 1996 | | January 1949 | Tamar Elmstead Road, West Byfleet, Surrey, KT14 6JB |
| SIMPSON, James Alex RESIGNED | Director | 24 Nov 1997 | 06 Nov 2002 | | May 1950 | Oxford House Hazel Road, West Byfleet, Surrey, KT14 6JJ |
| 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 |
| SMITH, David John RESIGNED | Director | | 31 Jul 1993 | | February 1941 | Doriel Woodland Way, Kingswood, Tadworth, Surrey, KT20 6NX |
| SPARKE, John Maurice RESIGNED | Director | 14 Apr 1997 | 31 Jan 2003 | | March 1940 | 2 The Coppice, Wynyard Park, Billingham, Stockton On Tees, TS22 5QH |
| SPAVEN, Paul Michael RESIGNED | Director | 01 Aug 1993 | 31 Dec 1995 | United Kingdom | August 1945 | 1 Fairlawn Park, Horsell, Woking, Surrey, GU21 4HT |
| STALKER, Ross Graham RESIGNED | Director | 31 Oct 2015 | 25 Sep 2018 | United Kingdom | October 1964 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| THEEDE, Steven Michael RESIGNED | Director | 03 Sep 2002 | 14 Aug 2003 | | March 1952 | Montpellier House, Templewood Lane, Stoke Poges, Buckinghamshire, SL2 4DA |
| VAAGE, Steinar RESIGNED | Director | 01 Mar 2007 | 15 Oct 2010 | Norway | October 1964 | Portman House 2 Portman Street, London, W1H 6DU |
| WALLACE, Timothy Alan RESIGNED | Director | 01 Jul 1998 | 03 Sep 2002 | | September 1959 | Ferndale Gorse Hill Road, Virginia Water, Surrey, GU25 4AU |
| WARRENDER, John Mcandrew RESIGNED | Director | 14 Nov 2008 | 09 Oct 2009 | Scotland | July 1961 | 1, North Deeside Road, Bieldside, Aberdeen, Aberdeenshire, AB15 9AD, Scotland |
| WARWICK, Paul Cyril RESIGNED | Director | 06 Jun 2007 | 30 Apr 2012 | Scotland | April 1953 | Portman House 2 Portman Street, London, W1H 6DU |
| WILLE, Michael George RESIGNED | Director | | 31 Mar 1998 | | August 1936 | 81 Harbord Street, London, SW6 6PL |
| 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 | 31 Oct 2015 | Scotland | May 1964 | Portman House 2 Portman Street, London, W1H 6DU |