| NICHOLLS, Janette Margaret ACTIVE | Secretary | 08 Jul 2011 | | | | 2 Axon, Commerce Road, Lynch Wood, Peterborough, PE2 6LR |
| BURROUGHS, Nigel John ACTIVE | Director | 08 Jul 2011 | | England | July 1964 | 2 Axon, Commerce Road, Lynch Wood, Peterborough, PE2 6LR |
| CLEAVER, Michael David ACTIVE | Director | 30 Nov 2012 | | England | April 1968 | Shared Services, Eastfield, Peterborough, PE1 5NA, England |
| BAILLIE, Fergus Cumming RESIGNED | Secretary | 22 Dec 1998 | 06 Sep 2007 | | | 4 Abinger Gardens, Murrayfield, Edinburgh, EH12 6DE, Scotland |
| COHEN, Eric I RESIGNED | Secretary | 06 Jun 2005 | 19 Feb 2010 | | | 3, Turtleback Lane, Westport, Connecticut, Ct06880, Usa |
| VAUGHAN, Ian Charles RESIGNED | Secretary | | 11 Jan 1999 | | | 16 Sandford Way, Dunchurch, Rugby, Warwickshire, CV22 6NB |
| COBBETTS (SECRETARIAL) LIMITED RESIGNED | Secretary | 19 Feb 2010 | 08 Jul 2011 | | | Halco Drilling International Limited, West Lane, Southowram, Halifax, West Yorkshire, HX3 9TW |
| BAILLIE, Fergus Cumming RESIGNED | Director | 22 Dec 1998 | 06 Sep 2007 | | July 1952 | 4 Abinger Gardens, Murrayfield, Edinburgh, EH12 6DE, Scotland |
| BROCK, Brian RESIGNED | Director | | 31 May 1996 | | September 1944 | Greenburn Baxter Wood, Cross Hills, Keighley, West Yorkshire, BD20 8BB |
| COHEN, Eric RESIGNED | Director | 10 Jul 2003 | 19 Feb 2010 | United States | October 1958 | 3 Turtleback Lane, Westport, Ct 06880, IRISH, Usa |
| DOBNEY, Laurence Michael RESIGNED | Director | 08 Jul 2011 | 30 Nov 2012 | United Kingdom | July 1954 | 2 Axon, Commerce Road, Lynch Wood, Peterborough, PE2 6LR |
| GOLUCKE, Karl Friedrich, Dr RESIGNED | Director | | 15 Aug 1993 | | April 1930 | Eichenstrasse 13, 5804 Herdecke, Germany |
| KAMPMANN, Dieter RESIGNED | Director | 14 Dec 1992 | 02 Jun 1997 | | March 1949 | Resingstr 12, 46 Dortmund 30 4600, Deutschland |
| KERSTING, Friedrich, Dr RESIGNED | Director | | 30 Jun 1992 | | August 1937 | Rubin Strasse 34, 4600 Dortmund 30, Germany |
| KREIGENFELD, Friedrich Wilhelm Heinrich RESIGNED | Director | | 31 Oct 1999 | | July 1945 | 2 Cloister Crofts, Leamington Spa, Warwickshire, CV32 6QQ |
| MACKUS, Craig Richard RESIGNED | Director | 19 Feb 2010 | 08 Jul 2011 | Usa | March 1952 | Halco Drilling International Limited, West Lane, Southowram, Halifax, West Yorkshire, HX3 9TW |
| MOMBERG, Michael, Dr RESIGNED | Director | 02 Jun 1997 | 22 Dec 1998 | | October 1949 | Zeppelinstr 26, Herdecke, 58313, Germany |
| ROBERTSON, Colin RESIGNED | Director | 01 Oct 1999 | 05 Apr 2007 | | January 1965 | 4 Leemuir View, Carluke, South Lanarkshire, ML8 4AN |
| SCHMIEDEKNECHT, Knut RESIGNED | Director | | 10 Dec 1992 | | August 1950 | Kampehenstr 4, 4600 Dortmund 1, Germany |
| STARKE, Wolfgang Peter RESIGNED | Director | 16 Jul 1992 | 30 Jun 1997 | | January 1936 | Hue Strasse 106, 46 Dortmund 4600, Germany |
| SULLIVAN, Timothy William RESIGNED | Director | 19 Feb 2010 | 08 Jul 2011 | Usa | June 1953 | Halco Drilling International Limited, West Lane, Southowram, Halifax, West Yorkshire, HX3 9TW |
| WIDMAN, Phillip Charles RESIGNED | Director | 10 Jul 2003 | 19 Feb 2010 | Usa | June 1954 | 25 Old Stone Crossing, West Simsbury, Connecticut 06092, Usa |
| WILFORD, John RESIGNED | Director | 01 Jun 1966 | 31 Mar 1998 | United Kingdom | December 1948 | 28 The Leys, Welford, Northampton, Northamptonshire, NN6 6HS |