| CARGILL, David Ian ACTIVE | Secretary | 27 May 2015 | | | | Peregrine House, Peregrine Road, Westhill Business Park, Westhill, Aberdeenshire, AB32 6JL, Scotland |
| HOEING-COSENTINO, Karin Annette ACTIVE | Director | 27 May 2015 | | Scotland | February 1971 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| KIDD, Ryan Alexander ACTIVE | Director | 27 May 2015 | | Scotland | January 1980 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| BRUCE, Gordon Alexander RESIGNED | Secretary | 21 Dec 2001 | 30 Jun 2009 | | | 18 Reidford Gardens, Drumoak, Banchory, Kincardineshire, AB31 5AW |
| HENDRY, Eric George RESIGNED | Secretary | 30 Jun 2009 | 27 May 2015 | | | 19, School Road, Newmachar, Aberdeen, Aberdeenshire, AB21 0WB, United Kingdom |
| SHEPHERD & WEDDERBURN RESIGNED | Nominee Secretary | | 21 Dec 2001 | | | Saltire Court 20 Castle Terrace, Edinburgh, EH1 2ET |
| AITKEN, William Russell Scott RESIGNED | Director | | 11 Feb 1991 | Scotland | July 1948 | Wayside, Inchmarlo Road, Banchory, Kincardineshire, AB31 5RR |
| BRUCE, Gordon Alexander RESIGNED | Director | | 30 Jun 2009 | | January 1945 | 18 Reidford Gardens, Drumoak, Banchory, Kincardineshire, AB31 5AW |
| BRUCE, Ronald James RESIGNED | Director | 21 Dec 2001 | 27 May 2015 | United Kingdom | September 1953 | Morvenview, Lumphanan, Banchory, Kincardineshire, AB31 4QB |
| CARROLL, Loren Kenneth RESIGNED | Director | 28 Apr 1993 | 21 Dec 2001 | | August 1943 | Smith International (North Sea) Ltd, Woodside Road Bridge Of Don, Aberdeen, AB23 8EF, Scotland |
| DORMAN, Margaret Kathryn RESIGNED | Director | 21 Dec 2001 | 16 Oct 2009 | | September 1963 | 2918 Fresh Meadows Drive, Houston, Texas, 77063 |
| DUDMAN, Bryan Leigh RESIGNED | Director | 10 Apr 2006 | 27 May 2015 | Usa | December 1956 | 5974, Cr 444 Waelder, 78959, Texas, Us |
| EVANS, Stewart John RESIGNED | Director | 15 May 1992 | 26 Apr 1993 | | March 1957 | Barnkinetum, Monymusk, Aberdeenshire |
| HACON, Michael John RESIGNED | Director | 26 Jul 1994 | 05 Apr 1995 | | November 1953 | 17 Church Crescent, Muswell Hill, London, N10 3NA |
| HACON, Michael John RESIGNED | Director | 01 May 1991 | 03 Feb 1994 | | November 1953 | 17 Church Crescent, Muswell Hill, London, N10 3NA |
| HENDRY, Eric George RESIGNED | Director | 30 Jun 2009 | 27 May 2015 | United Kingdom | April 1967 | 19, School Road, Newmachar, Aberdeen, Aberdeenshire, AB21 0WB, United Kingdom |
| HILL, Richard Douglas John RESIGNED | Director | 29 Sep 1995 | 21 Dec 2001 | | July 1957 | Hardgate, Drumoak, Banchory, Kincardineshire, AB31 3ES |
| KEANE, Terrence Peter RESIGNED | Director | 28 Apr 1993 | 01 Jun 1994 | | March 1952 | 2 Midmar Crescent, Kingswells, Aberdeen, AB1 8FD |
| KENNEDY, John James RESIGNED | Director | | 01 May 1991 | | April 1952 | 1413j Voss No 52, Houston, Texas, 77057, Usa |
| MCGACHIE, John RESIGNED | Director | 27 May 2015 | 08 Dec 2015 | United Kingdom | November 1965 | Badentoy Avenue, Badentoy Industrial Park, Portlethen Industrial Estate, Portlethen, Aberdeen, Aberdeenshire, AB12 4YB, Scotland |
| MCKENZIE, Donald RESIGNED | Director | 11 Feb 1991 | 28 Apr 1993 | | March 1949 | Flat 50 Mccready House, Crawford Street, London, W1 |
| NEFF, Michael Claude RESIGNED | Director | 21 Jan 1994 | 31 Dec 1996 | Scotland | July 1950 | 18 Hillview Road, Cults, Aberdeen, AB15 9HB |
| NICHOLSON, Peter Duncan RESIGNED | Director | 21 Dec 2001 | 31 Mar 2002 | Scotland | June 1956 | The Lilies, 20 Bath Street, Stonehaven, AB39 2DH |
| PAISLEY, Martin William RESIGNED | Director | 10 Apr 2006 | 03 Aug 2007 | | March 1964 | Cairndow, Onich, West Highlands, PH33 6SD |
| ROCK, Douglas Lawrence RESIGNED | Director | | 21 Dec 2001 | | January 1947 | C/O Smith International (North Sea), Woodside Road Bridge Of Don, Aberdeen, AB23 8EF, Scotland |
| TOMPKINS, David Lynn RESIGNED | Director | 28 Apr 1993 | 21 Aug 1998 | | August 1952 | 69 Culter House Road, Milltimber, Aberdeen, AB1 0EN |
| TUGWELL, Andrew Graham RESIGNED | Director | | 27 Feb 1992 | | April 1951 | Beech Cottage Parkhill, Dyce, Aberdeen, AB21 7AL |
| WERNER, Richard RESIGNED | Director | 21 Dec 2001 | 10 Apr 2006 | | December 1941 | 3507 Newcastle Drive, Houston, Texas, 77027, Usa |