| BRANSTON, Sean Richard Lawrence ACTIVE | Director | 02 Mar 2020 | | United Kingdom | September 1973 | 1, Park Row, Leeds, LS1 5AB, England |
| POLSON, Niall David ACTIVE | Director | 12 Feb 2026 | | United Kingdom | August 1983 | 1, Park Row, Leeds, LS1 5AB, England |
| ANDREW, Louise RESIGNED | Secretary | 10 Apr 2009 | 31 Mar 2014 | | | 16, Colthill Road, Milltimber, Aberdeenshire, AB13 0EF |
| BANYARD, Alec William James RESIGNED | Secretary | 02 Dec 1996 | 10 Apr 2009 | | | 17 Hampstead Gardens, Hockley, Essex, SS5 5HN |
| PINSENT MASONS SECRETARIAL LIMITED RESIGNED | Secretary | 14 Apr 1992 | 08 Aug 1997 | | | 1 Park Row, Leeds, West Yorkshire, LS1 5AB |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 30 Jan 1992 | 14 Apr 1992 | | | 26, Church Street, London, NW8 8EP |
| ANDREW, Louise RESIGNED | Director | 05 Jul 2012 | 31 Mar 2014 | Scotland | May 1977 | 3 Colmore Circus, Birmingham, B4 6BH |
| BELL, John Ruskin RESIGNED | Director | 12 Feb 2025 | 12 Feb 2026 | United Kingdom | September 1970 | 1, Park Row, Leeds, LS1 5AB, England |
| BYRNE, Anthony Joseph RESIGNED | Director | 18 Nov 2014 | 31 Dec 2021 | Scotland | February 1976 | Kca Deutag Drilling Group Limited, Minto Drive, Altens Industrial Estate, Aberdeen, AB12 3LW, Scotland |
| GILCHRIST, Neil Porteous RESIGNED | Director | 15 Jan 2013 | 12 Feb 2025 | United Kingdom | August 1967 | Group Headquarters, Bankhead Drive, City South Office Park, Portlethen, Aberdeen, AB12 4XX, Scotland |
| GRAM, Peter Dybwad RESIGNED | Director | 29 Aug 1994 | 12 May 1995 | | October 1943 | Holmendammen Terr 6, Oslo 0387, Norway, FOREIGN |
| LAFFERTY, Guy Delemere RESIGNED | Director | 29 Aug 1994 | 11 Dec 1996 | | June 1954 | 6 Pensford Avenue, Kew Gardens, Richmond, Surrey, TW9 4HP |
| LOCKE, Alasdair James Dougall RESIGNED | Director | | 20 Nov 2009 | United Kingdom | August 1953 | Glenrinnes Lodge, Dufftown, Keith, Banffshire, AB55 4BS, Scotland |
| MILNE, Peter John RESIGNED | Director | 07 Nov 1996 | 11 Aug 2010 | Scotland | May 1954 | Craigwood, Blairs, Aberdeen, AB12 5YT |
| MORGAN, Alan William RESIGNED | Director | 05 May 1992 | 30 Aug 1992 | England | October 1951 | 26 Applegarth Road, London, W14 0HY |
| PAVER, Gary Neil RESIGNED | Director | 15 Jan 2013 | 02 Mar 2020 | United Kingdom | May 1967 | Kca Deutag Drilling Group Limited, Minto Drive, Altens, Aberdeen, AB12 3LW, Scotland |
| PHILIPPS, Geoffrey Mark RESIGNED | Director | 14 Apr 1992 | 11 Dec 1996 | | November 1948 | 48 Pembridge Villas, London, W11 3EG |
| PORTER, Jay Lee RESIGNED | Director | 12 Feb 2025 | 12 Feb 2026 | Scotland | December 1984 | 1, Park Row, Leeds, LS1 5AB, England |
| RAMSAY, Alaina RESIGNED | Director | 12 Feb 2025 | 12 Feb 2025 | Scotland | March 1983 | 1, Park Row, Leeds, LS1 5AB, England |
| STEVENSON, Neil Graham RESIGNED | Director | 05 Jul 2012 | 21 Jan 2013 | United Kingdom | March 1964 | 3 Colmore Circus, Birmingham, B4 6BH |
| TAYLOR, Brian Christopher RESIGNED | Director | 18 Jan 2010 | 05 Jul 2012 | Scotland | May 1957 | 9, Richmondhill Road, Aberdeen, AB15 5EQ |
| THOMSON, Lynne RESIGNED | Director | 31 Mar 2014 | 18 Nov 2014 | United Kingdom | September 1971 | Kca Deutag Drilling Limited, Minto Drive, Altens Industrial Estate, Aberdeen, AB12 3LW, Scotland |
| WALKER, Mark Johnstone RESIGNED | Director | 18 Jan 2010 | 31 Jan 2013 | Scotland | November 1960 | 4, Conglass Place, Inverurie, Aberdeenshire, AB51 4LH |
| WIEST, Daniel Mathias, Dr RESIGNED | Director | 20 Aug 2010 | 03 May 2011 | Germany | July 1963 | Pienzenauerstr. 74, Munchen, 81925, Germany |
| INSTANT COMPANIES LIMITED RESIGNED | Nominee Director | 30 Jan 1992 | 14 Apr 1992 | | | 1, Mitchell Lane, Bristol, Avon, BS1 6BU |