| 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, England |
| 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 |
| BRIDGES, David John RESIGNED | Secretary | 01 Aug 1998 | 30 Sep 2000 | | | 51 Gordon Road, Aberdeen, AB15 7RY |
| FARRELL, Joseph Anthony RESIGNED | Secretary | 11 Nov 2015 | 22 May 2019 | | | 20th Floor,, 1 Angel Court, London, EC2R 7HJ, England |
| FLETCHER, Angela Sarah Helen RESIGNED | Secretary | 21 Feb 2002 | 30 Apr 2012 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| GRIMSHAW, David RESIGNED | Secretary | 22 May 2019 | 30 Sep 2019 | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| HEMMING, Brian William RESIGNED | Secretary | 10 Nov 2000 | 25 Jan 2002 | | | 42 Derbeth Park, Kingswells, Aberdeen, AB15 8TU |
| LANDES, Howard Ralph RESIGNED | Secretary | 30 Sep 2019 | 10 Oct 2022 | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| PEPIN, Jean-Francois Jacques Basile RESIGNED | Secretary | 01 May 2012 | 14 Aug 2014 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| RIXON, Peter Andrew Robin RESIGNED | Secretary | 22 Nov 1994 | 01 Aug 1998 | | | 49 Sandringham Court, Maida Vale, London, W9 1UA |
| STOKELD, Michael Philip, Sol RESIGNED | Secretary | 01 Aug 1998 | 31 Oct 2003 | | | 35 The Meadows, Milltimber, Aberdeen, AB13 0JT |
| WILSON, Suzanne Elizabeth RESIGNED | Secretary | 31 Oct 2003 | 30 Jul 2004 | | | 352 Great Western Road, Aberdeen, AB10 6LX |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Secretary | 01 Aug 1994 | 22 Nov 1994 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |
| ANDERSON, Duncan Morrison RESIGNED | Director | 07 Jan 2008 | 01 Aug 2011 | | July 1959 | Portman House, 2 Portman Street, London, W1H 6DU |
| BELL, Eric Robert Gillsepie RESIGNED | Director | 01 Nov 1999 | 01 Nov 2000 | | November 1954 | West Steading Blacktop, Kingswells, Aberdeen, Aberdeenshire, AB15 8QJ |
| BISHOP, Glen Yorke Spence RESIGNED | Director | 18 Oct 1995 | 13 Mar 1996 | | July 1954 | 150 Hamilton Place, Aberdeen, AB15 5BB |
| BREBER, Pierre Richard RESIGNED | Director | 15 Sep 2003 | 01 Aug 2005 | | August 1964 | 531 Great Western Road, Aberdeen, Aberdeenshire |
| BRIGGS, James Edward RESIGNED | Director | 22 Nov 1994 | 20 Feb 1998 | | September 1937 | Flat 4, 40 Hyde Park Gate, London, SW7Y 5DT |
| CASEY, Michael Wayne RESIGNED | Director | 01 Aug 2005 | 16 May 2007 | | September 1955 | 114 Queens Road, Aberdeen, Aberdeenshire, AB15 4YH |
| CHOU, Clement RESIGNED | Director | 05 Aug 1999 | 16 Nov 2001 | | July 1957 | 45 Coull Gardens, Kingswells, Aberdeen, Aberdeenshire, AB15 8TQ |
| CHUDANOV, Donald Allan RESIGNED | Director | 30 Jun 2006 | 01 May 2012 | United Kingdom | September 1958 | Portman House, 2 Portman Street, London, W1H 6DU |
| CLITHEROE, Andrew Redvers John RESIGNED | Director | 01 Jul 2011 | 25 Aug 2015 | United Kingdom | August 1967 | Portman House, 2 Portman Street, London, W1H 6DU |
| COHEN, Colette Brigid RESIGNED | Director | 01 May 2012 | 18 Jul 2013 | United Kingdom | August 1968 | Portman House, 2 Portman Street, London, W1H 6DU |
| COX, Christopher Martin RESIGNED | Director | 19 Nov 2001 | 15 Jul 2003 | | March 1961 | 20 Rubislaw Den North, Aberdeen, AB15 4AN |
| FARTHING, David Andrew, Vivian RESIGNED | Director | 01 Sep 2009 | 01 May 2012 | Scotland | September 1957 | Portman House, 2 Portman Street, London, W1H 6DU |
| FITZGERALD, John Gary RESIGNED | Director | 10 Feb 1995 | 12 Feb 1996 | | December 1939 | 29 Craigieburn Park, Aberdeen, AB1 7SG |
| FOWLER, Peter RESIGNED | Director | 01 Aug 2011 | 01 May 2013 | Scotland | October 1957 | Portman House, 2 Portman Street, London, W1H 6DU |
| GEE, John Marcus RESIGNED | Director | 16 May 2007 | 01 Jul 2011 | | April 1954 | Portman House, 2 Portman Street, London, W1H 6DU |
| HALLIWELL, Andrew Roy RESIGNED | Director | 03 Sep 2002 | 22 Mar 2004 | | March 1957 | 14 Westfield Terrace, Aberdeen, Aberdeenshire, AB25 2RU |
| HASTINGS, Andrew David Richard RESIGNED | Director | 01 Jan 2010 | 15 Jun 2018 | Scotland | February 1961 | 20th Floor,, 1 Angel Court, London, EC2R 7HJ, England |
| HAWKINGS, Neil RESIGNED | Director | 10 Mar 2000 | 13 May 2005 | | March 1961 | 49 Earlspark Drive, Bieldside, Aberdeen, Aberdeenshire, AB15 9AH |
| HEMMENS, Philip Duncan RESIGNED | Director | 13 Mar 1996 | 15 Aug 1997 | | October 1953 | 61 Castle Street, Johnshaven, Montrose, Angus, DD10 0ER |
| HENDERSON, Kenneth William RESIGNED | Director | 13 May 2005 | 11 Nov 2015 | Scotland | March 1958 | Kinraddie, 12 Gurney Street, Stonehaven, Kincardineshire, AB39 2EB |
| JOHANSEN, Trond Erik RESIGNED | Director | 16 Jul 2001 | 03 Sep 2002 | | March 1962 | 2 Macaulay Drive, Aberdeen, AB15 8FL |
| JOHNSTON, Kerr Allen RESIGNED | Director | 12 Sep 1997 | 10 Mar 2000 | | April 1955 | 1 Oldfold Avenue, Milltimber, Aberdeen, Aberdeenshire, AB13 0JX |
| 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 |
| KNICKEL, Carin Shirley RESIGNED | Director | 05 Aug 1999 | 01 Nov 1999 | | August 1956 | Birklands 255 North Deeside Road, Cults, Aberdeen, Aberdeenshire, AB15 9PA |
| KRANE, Alexander Lorentzen RESIGNED | Director | 20 Oct 2021 | 12 Dec 2024 | Norway | March 1976 | 151, Buckingham Palace Road, London, SW1W 9SZ, England |
| LACY, Kevin Dennis RESIGNED | Director | 04 Dec 1996 | 01 Nov 1999 | | April 1958 | Linden Lea Beaconhill Road, Milltimber, Aberdeen, Grampian, AB13 0JP, Scotland |
| MACKIE, Paul Gavin James RESIGNED | Director | 06 Aug 1999 | 15 Sep 2003 | | December 1949 | 11 Ditton Road, Surbiton, Surrey, KT6 6RE |
| MACKLON, Dominc Edward RESIGNED | Director | 11 Nov 2015 | 05 Jan 2017 | Scotland | April 1969 | Portman House, 2 Portman Street, London, W1H 6DU |
| MCCABE, James Reid RESIGNED | Director | 20 Feb 1998 | 06 Aug 1999 | | June 1944 | 31 Honeyman Close, London, NW6 7AZ |
| MCGILL, Kathryn Ann RESIGNED | Director | 15 Sep 2003 | 01 Sep 2009 | | March 1956 | Durris Cottage, Woodlands Of Durris, Banchory, Aberdeenshire, AB31 6BL |
| MERRIMAN, Gary RESIGNED | Director | 22 Nov 1994 | 01 Sep 1995 | | August 1954 | 48 Gladstone Place, Queens Cross, Aberdeen, AB1 6XA |
| MEYER, Patrick Lee RESIGNED | Director | 22 Nov 1994 | 18 Oct 1995 | | October 1951 | 8 Migvie Gardens, Kingswells, Aberdeen, AB1 8GB |
| OLSON, Stacey Guillot RESIGNED | Director | 01 May 2012 | 25 Aug 2015 | Scotland | November 1964 | Portman House, 2 Portman Street, London, W1H 6DU |
| OSBORNE, Andrew Jon RESIGNED | Director | 30 Sep 2019 | 26 Oct 2021 | United Kingdom | November 1969 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| PREECE, Rachel Clare RESIGNED | Director | 01 May 2013 | 25 Aug 2015 | Scotland | September 1969 | Portman House, 2 Portman Street, London, W1H 6DU |
| RAMSHAW, Roger Stephen RESIGNED | Director | 13 Sep 1995 | 01 Mar 1999 | | February 1949 | 4 Macaulay Drive, Craigiebuckler, Aberdeen, AB1 8FL |
| RIXON, Peter Andrew Robin RESIGNED | Director | 22 Nov 1994 | 17 Sep 1997 | | December 1945 | 49 Sandringham Court, Maida Vale, London, W9 1UA |
| ROBERTSON, Donald Alexander RESIGNED | Director | 01 Mar 1999 | 01 Jul 2001 | | July 1956 | 18 Hillview Crescent, Cults, Aberdeen, AB15 9RT |
| SAWYER, Mark John RESIGNED | Director | 13 Feb 2006 | 07 Jan 2008 | | October 1957 | 50 Woodhill Road, Aberdeen, Aberdeenshire, AB15 5JU |
| 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 |
| SIMPSON, Katherine Susan RESIGNED | Director | 10 Mar 2014 | 11 Nov 2015 | United Kingdom | October 1961 | Portman House, 2 Portman Street, London, W1H 6DU |
| SMITH, Brian Anthony RESIGNED | Director | 15 Sep 2003 | 30 Jun 2006 | | April 1953 | 16 Camegie Crescent, Aberdeen, AB15 4AE |
| SMITH, Brian Anthony RESIGNED | Director | 17 Sep 1997 | 01 Jul 1999 | | April 1953 | 16 Camegie Crescent, Aberdeen, AB15 4AE |
| SMITH, Charles Mayfield RESIGNED | Director | 22 Nov 1994 | 31 Jan 1995 | | January 1930 | 110 North Gate, Prince Albert Road, London, NW8 7EL |
| STALKER, Ross Graham RESIGNED | Director | 11 Nov 2015 | 25 Sep 2018 | United Kingdom | October 1964 | 20th Floor,, 1 Angel Court, London, EC2R 7HJ, England |
| STEVENS, Christopher Ed RESIGNED | Director | 15 Jul 2003 | 13 Feb 2006 | United Kingdom | September 1958 | The Beeches, Dalmuinzie Road Bieldside, Aberdeen, Aberdeenshire, AB15 9EB |
| TAYLOR, Charles Alan RESIGNED | Director | 01 Nov 1999 | 15 Sep 2003 | | October 1957 | 8 Rubislaw Den North, Aberdeen, Aberdeenshire, AB15 4AN |
| TETLOW, Jeffrey Howard RESIGNED | Director | 22 Nov 1994 | 05 Aug 1999 | | March 1946 | 110 Woodwarde Road, Dulwich, London, SE22 8UT, England |
| TOCHER, Richard Smith RESIGNED | Director | 18 Jul 2013 | 10 Mar 2014 | United Kingdom | December 1963 | Portman House, 2 Portman Street, London, W1H 6DU |
| VAAGE, Steinar RESIGNED | Director | 03 Sep 2002 | 15 Sep 2003 | | October 1964 | The Stables, Bellenden Walk, Milltimber, Aberdeen, AB13 0EY |
| WARWICK, Paul Cyril RESIGNED | Director | 03 Apr 2009 | 01 Jan 2010 | Scotland | April 1953 | Portman House, 2 Portman Street, London, W1H 6DU |
| WAY, William Jude RESIGNED | Director | 01 Nov 2000 | 03 Sep 2002 | | April 1959 | 22 Bayview Road, Aberdeen, AB15 4EY |
| WEBSTER, Donald James RESIGNED | Director | 13 Feb 1996 | 04 Dec 1996 | | December 1954 | 2 Albert Den, Albert Place, Aberdeen, AB2 4YX |
| WOLFE, Patrick RESIGNED | Director | 22 May 2019 | 30 Sep 2019 | Scotland | February 1963 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| COMBINED NOMINEES LIMITED RESIGNED | Nominee Director | 01 Aug 1994 | 22 Nov 1994 | | | Victoria House, 64 Paul Street, London, EC2A 4NA |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Director | 01 Aug 1994 | 22 Nov 1994 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |