| PINSENT MASONS SECRETARIAL LIMITED ACTIVE | Secretary | 30 Jun 2022 | | | | 1, Park Row, Leeds, LS1 5AB, United Kingdom |
| FRIEDMAN, Yaniv ACTIVE | Director | 01 Jul 2024 | | United Kingdom | April 1974 | Ithaca Energy, Hill Of Rubislaw, Aberdeen, AB15 6XL, United Kingdom |
| LEWIS, Iain Clifford Scobbie ACTIVE | Director | 01 Sep 2022 | | Scotland | December 1977 | Ithaca Energy, Hill Of Rubislaw, Aberdeen, AB15 6XL, Scotland |
| MCATEER, Julie Elizabeth ACTIVE | Director | 27 May 2024 | | United Kingdom | March 1969 | Hill Of Rubislaw, Aberdeen, AB15 6XL, United Kingdom |
| VASQUES, Luciano Maria ACTIVE | Director | 03 Oct 2024 | | United Kingdom | April 1963 | Hill Of Rubislaw, Aberdeen, AB15 6XL, United Kingdom |
| ARNBERGER, Gunther RESIGNED | Secretary | 01 Oct 2011 | 08 Oct 2013 | | | 14 Ryder Street, London, SW1Y 6QB |
| ASPDEN, Christopher Jonathan RESIGNED | Secretary | 01 Sep 2016 | 13 Jan 2017 | | | 62, Buckingham Gate, London, SW1E 6AJ |
| BOSS, Axel Manfred RESIGNED | Secretary | 01 Sep 2015 | 01 Sep 2016 | | | 62, Buckingham Gate, London, SW1E 6AJ |
| CHAPLIN, Richard James RESIGNED | Secretary | 01 Jul 2000 | 19 Sep 2001 | | | 22 Guildford Grove, London, SE10 8JT |
| CLARK, Philip Graham RESIGNED | Secretary | 16 Jul 2007 | 27 Jun 2008 | | | Flat 108 Artillery Mansions, 75 Victoria Street, London, SW1H 0HZ |
| FLANAGAN, Michael Peter RESIGNED | Secretary | 01 Dec 2008 | 01 Feb 2011 | | | 17 Hartington House, 4 Drummond Gate, London, SW1V 2HL |
| GOODSIR, George Michael Peter RESIGNED | Secretary | 29 Sep 1994 | 10 Oct 1997 | | | 29 Loudhams Road, Little Chalfont, Amersham, Buckinghamshire, HP7 9NX |
| HERZOG, Werner, Dr RESIGNED | Secretary | 07 Jul 2011 | 01 Oct 2011 | | | 14 Ryder Street, London, SW1Y 6QB |
| HERZOG, Werner RESIGNED | Secretary | 01 Dec 2002 | 01 Nov 2006 | | | Flat 6 Andrew Court, Wedderburn Road, London, NW3 5QE |
| KAMMLANDER, Bernd RESIGNED | Secretary | 08 Oct 2013 | 01 Sep 2015 | | | 62, Buckingham Gate, London, SW1E 6AJ, England |
| KNOEBEL, Friedrich RESIGNED | Secretary | 01 Nov 2006 | 16 Jul 2007 | | | Flat 73 40-90 Kingston House South, Ennismore Gardens, London, SW7 1NG |
| LANGANGER, Helmut Josef RESIGNED | Secretary | 27 Jan 1997 | 27 Jan 1997 | | | Brahmsgrasse 12, Strasshof, A 2231, Austria |
| PETR, Gerald RESIGNED | Secretary | 27 Jun 2008 | 07 Jul 2011 | | | 38, Byron Mews, Hampstead, London, NW3 2NQ |
| SAUNDERS, John Nicholas RESIGNED | Secretary | 01 Feb 2011 | 18 Oct 2014 | | | 55, Church Road, Epsom, Surrey, KT17 4DN, United Kingdom |
| SCHINHAN, Werner RESIGNED | Secretary | | 20 Nov 1992 | | | 14 Ince Road, Walton On Thames, Surrey, KT12 5BJ |
| SHEACH, David RESIGNED | Secretary | 13 Jan 2017 | 30 Jun 2022 | | | 1, Park Row, Leeds, LS1 5AB, United Kingdom |
| SIENCNIK, Martin Christian RESIGNED | Secretary | 20 Sep 2001 | 01 Dec 2002 | | | Flat 4, 15 Maresfield Gardens, London, NW3 5SN |
| STINDL, Harald Othmar RESIGNED | Secretary | 20 Nov 1992 | 29 Sep 1994 | | | C/O Omv (Uk) Limited, 14 River Street, London, SW1Y 6QB |
| STOCK, Wolfgang RESIGNED | Secretary | 11 Sep 1997 | 30 Jun 2000 | | | 6 Marlborough Street, London, SW3 3PS |
| ARNBERGER, Gunther RESIGNED | Director | 01 Oct 2011 | 08 Oct 2013 | United Kingdom | June 1968 | 14 Ryder Street, London, SW1Y 6QB |
| AUSTIN, John Anthony RESIGNED | Director | 03 Oct 2008 | 01 May 2013 | England | February 1956 | 143, Hookfield, Epsom, Surrey, KT19 8JH |
| BARTHOLOMEW, Iain Douglas, Dr RESIGNED | Director | 13 Jan 2017 | 30 Jun 2022 | United Kingdom | July 1958 | 1, Park Row, Leeds, West Yorkshire, LS1 5AB |
| BOSS, Axel Manfred RESIGNED | Director | 01 Sep 2015 | 01 Sep 2016 | United Kingdom | August 1969 | 62, Buckingham Gate, London, SW1E 6AJ |
| BRUCE, Alan Alexander RESIGNED | Director | 30 Jun 2022 | 04 Jan 2024 | United Kingdom | January 1982 | Ithaca Energy (Uk) Limited, Hill Of Rubislaw, Aberdeen, AB15 6XL, United Kingdom |
| BUSHATI, Kurt RESIGNED | Director | | 02 Dec 1996 | | January 1934 | Schuettaustrasse 61, Vienna A-1220, FOREIGN, Austria |
| CABJOLSKY, Jurg RESIGNED | Director | 10 Dec 1999 | 25 Jun 2002 | | December 1941 | Marc Aurel Strasse 2b, Vienna, A-1010, Austria |
| CLARK, Philip Graham RESIGNED | Director | 16 Jul 2007 | 27 Jun 2008 | | July 1951 | Flat 108 Artillery Mansions, 75 Victoria Street, London, SW1H 0HZ |
| CRAWFORD, David Andrew RESIGNED | Director | 30 Jun 2022 | 01 Sep 2022 | Scotland | January 1963 | Ithaca Energy (Uk) Limited, Hill Of Rubislaw, Aberdeen, AB15 6XL, United Kingdom |
| DAVID, Martyn Ramsay RESIGNED | Director | | 30 Sep 1994 | | January 1941 | 65 Coniger Road, London, SW6 |
| DETTLINGER, Arno RESIGNED | Director | 01 Dec 2008 | 01 Feb 2011 | | June 1959 | Langenzersdorf, An Der Muchlen 44b, Langenzersdorf, 2103, Austria |
| FLEMING, Douglas Weir RESIGNED | Director | 13 Jan 2017 | 30 Jun 2022 | United Kingdom | April 1970 | 1, Park Row, Leeds, LS1 5AB, United Kingdom |
| GOODSIR, George Michael Peter RESIGNED | Director | 29 Sep 1994 | 10 Oct 1997 | | August 1958 | 29 Loudhams Road, Little Chalfont, Amersham, Buckinghamshire, HP7 9NX |
| GRAHAM, Vincent RESIGNED | Director | 01 May 2013 | 13 Jan 2017 | England | May 1956 | 62, Buckingham Gate, London, SW1E 6AJ, England |
| GUTH, Burkhard RESIGNED | Director | 27 Jan 1997 | 30 Nov 1999 | | August 1943 | Siolygasse 18/2, Vienna, A 1190, Austria |
| HAMILTON, Walter, Dr RESIGNED | Director | 01 Feb 2011 | 21 Mar 2016 | Austria | December 1955 | Haspingergasse 3, 2232 Deutsch Wagram, Austria |
| HERZOG, Werner, Dr RESIGNED | Director | 07 Jul 2011 | 01 Oct 2011 | Austria | June 1959 | 14 Ryder Street, London, SW1Y 6QB |
| HERZOG, Werner RESIGNED | Director | 01 Dec 2002 | 01 Nov 2006 | | June 1959 | Flat 6 Andrew Court, Wedderburn Road, London, NW3 5QE |
| HOUNSELL, Stephen Michael RESIGNED | Director | 01 Aug 1995 | 01 Apr 2003 | United Kingdom | November 1951 | 27 Romans Way, Pyrford, Woking, Surrey, GU22 8TR |
| HOUNSELL, Stephen Michael RESIGNED | Director | | 06 Apr 1993 | United Kingdom | November 1951 | 27 Romans Way, Pyrford, Woking, Surrey, GU22 8TR |
| HUSSAIN, Ashiq, Dr RESIGNED | Director | 01 Aug 2003 | 12 May 2006 | | October 1950 | Flat 154 Artillery Mansions, 75 Victoria Street, London, SW1H 0HZ |
| KAMMLANDER, Bernd RESIGNED | Director | 08 Oct 2013 | 01 Sep 2015 | Austria | December 1976 | 62, Buckingham Gate, London, SW1E 6AJ, England |
| KNOEBEL, Friedrich RESIGNED | Director | 01 Nov 2006 | 16 Jul 2007 | | October 1951 | Flat 73 40-90 Kingston House South, Ennismore Gardens, London, SW7 1NG |
| LANGANGER, Helmut Josef RESIGNED | Director | 27 Jan 1997 | 24 May 2002 | | April 1950 | Brahmsgrasse 12, Strasshof, A 2231, Austria |
| LATIN, David Michael RESIGNED | Director | 01 Sep 2011 | 13 Jan 2017 | Austria | April 1965 | 62, Buckingham Gate, London, SW1E 6AJ, England |
| MALCOLM, Richard John RESIGNED | Director | 01 Jul 2006 | 02 Oct 2008 | Uk | May 1952 | Flat 154 Artillery Mansions, 75 Victoria Street, London, SW1H 0HZ |
| MEISTER, Siegerfried RESIGNED | Director | 06 Apr 1993 | 20 Jan 1994 | | June 1941 | 14 Ryder Street, London, SW1Y 6QB |
| MEYSEL, Siegfried, Dr RESIGNED | Director | | 11 Nov 1992 | | September 1938 | Schindlergasse 47, Vienna A-1180, FOREIGN, Austria |
| MYERSON, Gilad RESIGNED | Director | 30 Jun 2022 | 27 May 2024 | United Kingdom | March 1976 | 33, Cavendish Square, London, W1G 0PW, United Kingdom |
| PETR, Gerald RESIGNED | Director | 27 Jun 2008 | 07 Jul 2011 | United Kingdom | February 1968 | 38, Byron Mews, Hampstead, London, NW3 2NQ |
| REITHOFER, Johannes RESIGNED | Director | 25 Aug 1995 | 11 Sep 1997 | | February 1958 | 128 New Crane Wharf, 14 New Crane Place, London, E1 9TU |
| REMP, Wolfgang RESIGNED | Director | 23 Apr 2002 | 01 Sep 2011 | Austria | September 1950 | 291, Leopoldsgraben, A-3400, Klosterneuburg, Austria |
| ROGER, Jonathan Leslie RESIGNED | Director | 13 Jan 2017 | 30 Jun 2022 | United Kingdom | May 1969 | 1, Park Row, Leeds, West Yorkshire, LS1 5AB |
| RUTTENSTORFER, Wolfgang RESIGNED | Director | 20 Nov 1992 | 27 Jan 1997 | | October 1950 | Hans Kudlichstrasse 26/15, Korneuburg, Austria 2100, FOREIGN, Austria |
| SCHINHAN, Werner RESIGNED | Director | 27 Jan 1997 | 01 Dec 2003 | | February 1957 | Dr Stumpfasse 24, Tribuswinkel, A 2512, Austria |
| SCHINHAN, Werner RESIGNED | Director | | 20 Nov 1992 | | February 1957 | 14 Ince Road, Walton On Thames, Surrey, KT12 5BJ |
| SCHNEIDER, Gerhard RESIGNED | Director | 07 Mar 1994 | 01 Aug 1995 | | January 1940 | 42 Duchess Of Bedford House, Duchess Of Bedford Walk, London, W8 7QL |
| SIENCNIK, Martin RESIGNED | Director | 01 Mar 2009 | 01 May 2014 | Austria | December 1965 | 33/17, Salesianergasse, Vienna, 1030, Austria |
| SIENCNIK, Martin Christian RESIGNED | Director | 01 Aug 2000 | 01 Dec 2002 | | February 1965 | Flat 4, 15 Maresfield Gardens, London, NW3 5SN |
| STINDL, Harald Othmar RESIGNED | Director | 20 Nov 1992 | 25 Aug 1995 | | April 1960 | C/O Omv (Uk) Limited, 14 River Street, London, SW1Y 6QB |
| STOCK, Wolfgang RESIGNED | Director | 01 Oct 2016 | 13 Jan 2017 | Austria | April 1961 | 62, Buckingham Gate, London, SW1E 6AJ |
| STOCK, Wolfgang RESIGNED | Director | 01 Dec 2003 | 01 Mar 2009 | | April 1961 | Floridusgasse 21, Vienna, 1210, Austria |
| STOCK, Wolfgang RESIGNED | Director | 11 Sep 1997 | 31 Jul 2000 | | April 1961 | 6 Marlborough Street, London, SW3 3PS |
| TRENTINI, Christoph RESIGNED | Director | 01 Sep 2016 | 13 Jan 2017 | Austria | June 1968 | 62, Buckingham Gate, London, SW1E 6AJ |
| VAN DER HARTEN, Antoon Paul Marie RESIGNED | Director | 01 Jul 2014 | 01 Oct 2016 | Austria | September 1964 | Omv E&P Gmbh, Trabrennstrasse 6-8, 1020 Vienna, Austria |
| VEIT, Hans Christopher RESIGNED | Director | 21 Mar 2016 | 13 Jan 2017 | Austria | January 1958 | 62, Buckingham Gate, London, SW1E 6AJ |