| CLIFTON, Scot ACTIVE | Secretary | 01 Jul 2009 | | | | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN |
| CLIFTON, Scot ACTIVE | Director | 01 Jul 2009 | | Scotland | November 1966 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN |
| MEKKAWY, Wael ACTIVE | Director | 01 Feb 2020 | | Scotland | May 1974 | The Shard, 32 London Bridge Street, London, SE1 9SG |
| USMAN, Shaikh ACTIVE | Director | 28 Feb 2020 | | United Kingdom | March 1972 | The Shard, 32 London Bridge Street, London, SE1 9SG |
| WHITE, Martin Robert ACTIVE | Director | 08 Dec 2017 | | United Kingdom | September 1973 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, United Kingdom |
| CRAWLEY, Peter John RESIGNED | Secretary | 31 Jul 2003 | 30 Jun 2008 | | | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| DEERING, John Edward RESIGNED | Secretary | 30 Jun 2008 | 01 Jul 2009 | | | 129, Blenheim Place, Aberdeen, Aberdeenshire, AB25 2DL |
| HENNIKER SMITH, Ian Maurice RESIGNED | Secretary | 01 Jun 1999 | 20 Jul 1999 | | | Fishers, Cox Green, Rudgwick, West Sussex, RH12 3DD |
| JACKSON, Robert Humphrey RESIGNED | Secretary | | 31 Aug 1995 | | | 50 Stratton Street, London, W1X 6NX |
| NICHOLSON, Stephen John RESIGNED | Secretary | 31 Aug 1995 | 01 Jun 1999 | | | 48 Wolseley Gardens, London, W4 3LS |
| ROBERTSON TOCHER, Judith RESIGNED | Secretary | 01 Jun 2000 | 31 Jul 2003 | | | Blacktop House Blacktop, Kingswells, Aberdeen, AB15 8QJ |
| VINT, Richard Clark RESIGNED | Secretary | 20 Jul 1999 | 01 Jun 2000 | | | 155 North Deeside Road, Bieldside, Aberdeen, Aberdeenshire, AB15 9EA |
| BETTS, Matthew RESIGNED | Director | 01 Jan 2014 | 08 Dec 2017 | United Kingdom | January 1968 | Halliburton House, Howe Moss Drive, Dyce, Aberdeen, AB21 0GD, Scotland |
| BOWYER, Michael Lewis RESIGNED | Director | 30 Jun 2004 | 01 Jul 2009 | | October 1951 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| BUCHANAN, Alasdair Ian RESIGNED | Director | 01 Aug 2011 | 13 Apr 2012 | Scotland | November 1960 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, Scotland |
| FITZGERALD, Mel Oliver RESIGNED | Director | 18 Jun 2002 | 30 Jun 2004 | United Kingdom/England | November 1950 | 3 Marlyns Drive, Burpham, Guildford, Surrey, GU4 7LS |
| GRIMES, Douglas John RESIGNED | Director | | 31 Jul 2001 | Scotland | April 1947 | Fetteresso Castle, Stonehaven, Kincardineshire, AB39 3UR |
| HEATH, Stuart Matthew RESIGNED | Director | 18 Nov 2012 | 14 May 2013 | United Arab Emirates | April 1959 | 8th Floor Convention Tower, Beside Novotel Hotel, Trade Centre, PO BOX 3111, Dubai, United Arab Emirates |
| HOUSTON, John Joseph RESIGNED | Director | 18 Jun 2002 | 27 Apr 2007 | | August 1964 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| JOHNSTON, David Alexander RESIGNED | Director | 24 Oct 2007 | 18 Nov 2012 | United Kingdom | March 1971 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, United Kingdom |
| LAWRIE, Douglas George RESIGNED | Director | 08 Aug 2001 | 06 Sep 2002 | | May 1958 | 20 Kildrummy Road, Craigiebuckler, Aberdeen, AB15 8HJ |
| MAHON, Barry Anthony RESIGNED | Director | 31 Jul 2003 | 30 Jun 2004 | | September 1962 | 133 North Deeside Road, Milltimber, Aberdeen, AB13 0JS |
| MATHEW, Thomas Kuzhuvommannil RESIGNED | Director | 28 Jan 2014 | 28 Feb 2020 | United Arab Emirates | May 1963 | 14th Floor, Citibank Tower, Al-Qutayat Street, Dubai, United Arab Emirates |
| MENEREY, Robert James RESIGNED | Director | | 17 Dec 1999 | | March 1944 | 367 Tealwood, Houston, Texas 77024, Usa |
| MLADENKA, David RESIGNED | Director | 13 Apr 2012 | 01 Jan 2014 | United Kingdom | December 1960 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, Scotland |
| NICHOLSON, Stephen John RESIGNED | Director | | 14 Mar 2006 | | February 1948 | Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL |
| PAVER, Gary Neil RESIGNED | Director | 30 Jun 2004 | 24 Oct 2007 | | May 1967 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| SEATON, Simon Derek RESIGNED | Director | 05 Jan 2009 | 01 Aug 2011 | Scotland | March 1968 | Halliburton House, Howe Moss Crescent, Kirkhill Industrial Estate, Dyce, Aberdeen, AB21 0GN, Scotland |
| SMART, Edwin Gerald RESIGNED | Director | 14 May 2013 | 19 Aug 2013 | England | September 1965 | Halliburton House, Howe Moss Crescent, Kirkhill Industrial Estate, Dyce, Aberdeen, AB21 0GN, Scotland |