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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

O'brien, Alan, Mr.

    Related profiles found in government register
  • O'brien, Alan, Mr.
    British solicitor born in June 1957

    Resident in Uk

    Registered addresses and corresponding companies
  • O'brien, Alan, Mr.
    British vp legal & risk mgmt born in June 1957

    Resident in Uk

    Registered addresses and corresponding companies

    • Charter Place, Vine Street, Uxbridge, Middlesex, UB8 1JG

      IIF 5
  • O'brien, Alan
    British vp legal and risk management born in June 1957

    Resident in Uk

    Registered addresses and corresponding companies

    • Charter Place, Vine Street, Uxbridge, Middlesex, UB8 1JG

      IIF 6
  • O'brien, Alan
    British solicitor born in June 1957

    Registered addresses and corresponding companies
  • O'brien, Alan, Mr.
    British solicitor

    Registered addresses and corresponding companies

    • Moon Lodge, 33 Burgess Wood Road South, Beaconsfield, Buckinghamshire, HP9 1EL

      IIF 14 IIF 15 IIF 16
  • O'brien, Alan
    British

    Registered addresses and corresponding companies
  • O'brien, Alan
    British born in June 1957

    Resident in England

    Registered addresses and corresponding companies

    • C/o Deloitte Llp, 1 New Street Square, London, EC4A 3HQ

      IIF 35
  • O'brien, Alan
    British chief legal officer born in June 1957

    Resident in England

    Registered addresses and corresponding companies

    • Second Floor, Building 3, Arc Uxbridge, Sanderson Road, Uxbridge, UB8 1DH, United Kingdom

      IIF 36
  • O'brien, Alan
    British general counsel born in June 1957

    Resident in England

    Registered addresses and corresponding companies

    • Prospect House, 97 Oxford Road, Uxbridge, UB8 1LU, United Kingdom

      IIF 37
  • O'brian, Alan
    British

    Registered addresses and corresponding companies

    • 21 Wethered Park, Marlow, Buckinghamshire, SL7 2BH

      IIF 38
  • O'brien, Alan

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments
Active 1
Ceased 34
  • 1
    LATTICE ENERGY RESOURCES (BASS GAS) LIMITED - 2019-12-02
    ORIGIN ENERGY NORTHWEST LIMITED - 2017-06-28
    BORAL ENERGY NORTHWEST LIMITED - 2000-05-02
    SAGASCO NORTHWEST LIMITED - 1995-10-06
    LASMO OIL (AUSTRALIA) LIMITED - 1993-04-08
    LASMO SHELF NO. 1 LIMITED - 1989-08-16
    2 New Street Square, London, United Kingdom
    Active Corporate (3 parents)
    Officer
    1993-03-25 ~ 1993-05-08
    IIF 7 - Director → ME
  • 2
    VENTURE PRODUCTION (DMF) LIMITED - 2011-09-12
    CH4 DMF LIMITED - 2006-12-01
    ENI DMF LIMITED - 2004-05-28
    LASMO (DMF) LIMITED - 2003-04-10
    DNO OFFSHORE LIMITED - 1996-04-23
    PEKO OIL NORTH SEA PLC - 1990-10-10
    NORTH SEA & GENERAL OIL OPERATIONS PLC - 1988-01-04
    DAWSEA PUBLIC LIMITED COMPANY - 1985-01-22
    Millstream, Maidenhead Road, Windsor, Berkshire
    Dissolved Corporate (3 parents)
    Officer
    2001-11-09 ~ 2002-07-19
    IIF 28 - Secretary → ME
  • 3
    NEXEN ETTRICK U.K. LIMITED - 2019-01-14
    CNOOC ETTRICK U.K LIMITED - 2019-01-14
    ENCANA (ETTRICK) LIMITED - 2004-12-02
    PANCANADIAN PETROLEUM (ETTRICK) LIMITED - 2002-04-29
    BP AMOCO EXPLORATION (ETTRICK) LIMITED - 2000-12-11
    Second Floor Building 3, Arc Uxbridge, Sanderson Road, Uxbridge, United Kingdom
    Active Corporate (5 parents)
    Officer
    2005-03-09 ~ 2011-01-20
    IIF 3 - Director → ME
    2002-08-06 ~ 2007-05-15
    IIF 14 - Secretary → ME
  • 4
    Fifth Floor, 37 Esplanade, St Helier, Jersey
    Active Corporate (3 parents, 1 offspring)
    Officer
    2019-03-27 ~ 2025-06-27
    IIF 37 - Director → ME
    2019-05-16 ~ 2025-06-27
    IIF 45 - Secretary → ME
  • 5
    NEXEN PETROLEUM U.K. LIMITED - 2019-01-14
    ENCANA (U.K.) LIMITED - 2004-12-02
    PANCANADIAN PETROLEUM(U.K.)LIMITED - 2002-01-10
    Second Floor, Building 3 Arc Uxbridge, Sanderson Road, Uxbridge, United Kingdom
    Active Corporate (5 parents, 3 offsprings)
    Officer
    2005-03-09 ~ 2011-01-20
    IIF 2 - Director → ME
    2002-07-30 ~ 2006-11-29
    IIF 16 - Secretary → ME
  • 6
    NEXEN PETROLEUM DRAGON U.K. LIMITED - 2019-01-14
    BRITCANA ENERGY LTD - 2010-08-20
    Second Floor Building 3, Arc Uxbridge, Sanderson Road, Uxbridge, United Kingdom
    Active Corporate (5 parents, 1 offspring)
    Officer
    2010-04-13 ~ 2011-01-20
    IIF 4 - Director → ME
  • 7
    Second Floor, Building 3 Arc Uxbridge, Sanderson Road, Uxbridge, United Kingdom
    Active Corporate (5 parents, 6 offsprings)
    Officer
    2021-12-07 ~ 2025-06-27
    IIF 36 - Director → ME
  • 8
    92 Park Street, Camberley, Surrey
    Dissolved Corporate (2 parents)
    Equity (Company account)
    2,347 GBP2022-03-31
    Officer
    ~ 1991-09-17
    IIF 8 - Director → ME
    ~ 1991-09-17
    IIF 17 - Secretary → ME
  • 9
    HOUSEFORMAT LIMITED - 2003-08-28
    Floor 8, Assembly Building C, Cheese Lane, Bristol
    Liquidation Corporate (3 parents)
    Officer
    2003-08-12 ~ 2003-09-29
    IIF 9 - Director → ME
    2003-08-12 ~ 2004-11-24
    IIF 44 - Secretary → ME
  • 10
    LASMO AMBALAT LIMITED - 2003-06-27
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 43 - Secretary → ME
  • 11
    AGIP AUSTRALIA LIMITED - 2003-04-10
    BRITISH-BORNEO AUSTRALIA LIMITED - 2000-12-14
    HARDY PETROLEUM LIMITED - 1999-03-01
    TRAFALGAR HOUSE PETROLEUM LIMITED - 1989-05-03
    DOLPHIN PETROLEUM LIMITED - 1986-06-01
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (7 parents)
    Officer
    2001-12-11 ~ 2002-07-19
    IIF 31 - Secretary → ME
  • 12
    AGIP (BTC) LIMITED - 2003-02-28
    LASMO FINANCE LIMITED - 2001-12-18
    HALKYN OIL & GAS LIMITED - 1982-03-01
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents)
    Officer
    1999-02-01 ~ 2002-08-13
    IIF 13 - Director → ME
    2001-11-09 ~ 2002-08-13
    IIF 22 - Secretary → ME
  • 13
    LASMO (BUKAT) LIMITED - 2003-06-27
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 40 - Secretary → ME
  • 14
    LASMO GANAL LIMITED - 2003-06-27
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (6 parents)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 20 - Secretary → ME
  • 15
    LASMO INDONESIA LIMITED - 2003-06-23
    TRUSHELFCO (NO. 1372) LIMITED - 1989-02-16
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (6 parents, 12 offsprings)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 30 - Secretary → ME
  • 16
    AGIP INVESTMENTS PLC - 2003-05-30
    NR CORP PLC - 2000-12-20
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents, 1 offspring)
    Officer
    2002-03-22 ~ 2002-09-18
    IIF 21 - Secretary → ME
  • 17
    AGIP AUSTRALIA 91-13 LIMITED - 2003-04-10
    BRITISH-BORNEO AUSTRALIA 91-13 LIMITED - 2000-12-15
    BRITISH-BORNEO TIMOR GAP PETROLEUM LIMITED - 1999-03-29
    HARDY TIMOR GAP PETROLEUM LIMITED - 1999-03-01
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (6 parents)
    Officer
    2001-12-11 ~ 2002-07-19
    IIF 23 - Secretary → ME
  • 18
    LASMO KRUENG MANE LIMITED - 2003-06-27
    LASMO PETROLEUM DEVELOPMENT LIMITED - 1999-03-11
    Eni House, 10 Ebury Bridge Road, London
    Dissolved Corporate (5 parents)
    Officer
    1999-02-01 ~ 1999-02-22
    IIF 10 - Director → ME
    2002-01-11 ~ 2002-07-19
    IIF 18 - Secretary → ME
  • 19
    LASMO PLC - 2003-05-07
    LONDON & SCOTTISH MARINE OIL PLC - 1989-07-01
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (7 parents, 11 offsprings)
    Officer
    1999-04-30 ~ 2002-07-19
    IIF 34 - Secretary → ME
  • 20
    ENI LNS PLC - 2003-06-13
    LASMO NORTH SEA PLC - 2003-04-10
    SCOTTISH CANADIAN OIL & TRANSPORTATION COMPANY LIMITED - 1981-12-31
    SCOTTISH CANADIAN OIL & TRANSPORTATION COMPANY LIMITED - 1980-12-31
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents)
    Officer
    1999-04-30 ~ 2002-07-19
    IIF 27 - Secretary → ME
  • 21
    MONUMENT EXPLORATION AND PRODUCTION LIMITED - 2003-04-10
    CHEMICAL & ALLIED TRUST LIMITED - 1985-02-15
    Ebury Bridge House, 10 Ebury Bridge Road, London
    Dissolved Corporate (3 parents)
    Officer
    1999-06-30 ~ 2002-07-19
    IIF 26 - Secretary → ME
  • 22
    LASMO EXPLORATION (MIDDLE EAST) LIMITED - 2003-04-10
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents)
    Officer
    2000-12-14 ~ 2002-08-08
    IIF 12 - Director → ME
    2002-01-11 ~ 2002-08-08
    IIF 25 - Secretary → ME
  • 23
    ENI MOG PLC - 2003-06-13
    MONUMENT OIL AND GAS PLC - 2003-04-10
    MONUMENT OIL AND GAS (HOLDINGS) PLC - 1996-08-16
    Ebury Bridge House, 10 Ebury Bridge Road, London
    Dissolved Corporate (4 parents)
    Officer
    1999-07-30 ~ 2002-07-19
    IIF 41 - Secretary → ME
  • 24
    LASMO OIL (ALGERIA) LIMITED - 2003-04-10
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (7 parents)
    Officer
    2001-08-24 ~ 2002-08-08
    IIF 11 - Director → ME
    2001-11-09 ~ 2002-08-08
    IIF 19 - Secretary → ME
  • 25
    LASMO RAPAK LIMITED - 2003-06-27
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (6 parents)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 39 - Secretary → ME
  • 26
    LASMO (TNS) LIMITED - 2003-04-11
    RECORD BOOKS LIMITED - 1989-04-10
    THOMSON NORTH SEA LIMITED - 1989-03-16
    INTERNATIONAL THOMSON PLC - 1988-12-14
    THOMSON NORTH SEA PLC - 1986-11-28
    6 Queens Road, Aberdeen, Scotland, Scotland
    Active Corporate (5 parents)
    Officer
    2001-11-10 ~ 2002-07-19
    IIF 29 - Secretary → ME
  • 27
    LASMO (UHL) LIMITED - 2003-04-10
    ULTRAMAR HOLDINGS LIMITED - 1993-11-18
    GLENWORTH SHIPPING LIMITED - 1979-12-31
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 33 - Secretary → ME
  • 28
    ENI ULT PLC - 2003-06-13
    LASMO (ULT) PLC - 2003-04-10
    ULTRAMAR PUBLIC LIMITED COMPANY - 1994-06-20
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents, 3 offsprings)
    Officer
    1999-04-30 ~ 2002-07-19
    IIF 32 - Secretary → ME
  • 29
    LASMO (ULX) LIMITED - 2003-04-10
    ULTRAMAR EXPLORATION LIMITED - 1992-07-15
    Eni House, 10 Ebury Bridge Road, London
    Active Corporate (5 parents, 2 offsprings)
    Officer
    2002-01-11 ~ 2002-07-19
    IIF 38 - Secretary → ME
  • 30
    AGIP VENTURES PLC - 2003-04-25
    WORLDLEADER PUBLIC LIMITED COMPANY - 2000-03-15
    Ebury Bridge House, 10 Ebury Bridge Road, London
    Dissolved Corporate (4 parents)
    Officer
    2002-03-22 ~ 2002-08-08
    IIF 24 - Secretary → ME
  • 31
    NEXEN EXPLORATION U.K. LIMITED - 2011-03-11
    ENCANA EXPLORATION (U.K.) LIMITED - 2004-12-02
    GLENN EXPLORATION LIMITED - 2001-12-24
    Interpark House, 7 Down Street, London
    Dissolved Corporate (4 parents)
    Officer
    2005-03-09 ~ 2011-01-20
    IIF 1 - Director → ME
    2002-08-06 ~ 2007-05-15
    IIF 15 - Secretary → ME
  • 32
    NEXEN EUROPEAN ENERGY MARKETING LIMITED - 2005-10-03
    150 Aldersgate Street, London
    Dissolved Corporate (4 parents)
    Officer
    2006-05-08 ~ 2011-02-28
    IIF 5 - Director → ME
  • 33
    ABBEYCORP LIMITED - 2004-11-26
    Second Floor Building 3 Arc Uxbridge, Sanderson Road, Uxbridge, United Kingdom
    Active Corporate (4 parents)
    Officer
    2006-09-26 ~ 2012-03-27
    IIF 6 - Director → ME
  • 34
    PRIME PAKISTAN LIMITED - 2024-12-24
    ENI PAKISTAN LIMITED - 2022-12-30
    LASMO OIL PAKISTAN LIMITED - 2003-04-10
    SCOTTISH CANADIAN OIL & TRANSPORTATION COMPANY LIMITED - 1987-04-03
    WILLIAM REAY & COMPANY LIMITED - 1981-01-02
    5th Floor Halo, Counterslip, Bristol, United Kingdom
    Active Corporate (4 parents)
    Officer
    2001-12-11 ~ 2002-07-19
    IIF 42 - Secretary → ME

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.