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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

Mr Helge Ansgar Hammer

    Related profiles found in government register
  • Mr Helge Ansgar Hammer
    Norwegian born in June 1961

    Resident in Norway

    Registered addresses and corresponding companies
    • 18, Galloway Road, London, W12 0PJ, United Kingdom

      IIF 1
  • Hammer, Helge Ansgar
    Norwegian born in June 1961

    Resident in Norway

    Registered addresses and corresponding companies
    • 5th Floor, New Change, London, EC4M 9AF, England

      IIF 2
  • Hammer, Helge Ansgar
    Norwegian ceo born in June 1961

    Resident in Norway

    Registered addresses and corresponding companies
    • Hudson House, 8 Tavistock Street, London, WC2E 7PP, United Kingdom

      IIF 3
  • Hammer, Helge Ansgar
    Norwegian petroleum engineer born in June 1961

    Resident in Norway

    Registered addresses and corresponding companies
    • 18, Galloway Road, London, W12 0PJ, United Kingdom

      IIF 4
  • Hammer, Helge
    Norwegian manager born in June 1961

    Resident in Norway

    Registered addresses and corresponding companies
    • 30, Crown Place, London, EC2A 4ES

      IIF 5
    • 30, Crown Place, London, EC2A 4ES, United Kingdom

      IIF 6
  • Hammer, Helge Ansgar
    Norwegian manager born in June 1961

    Registered addresses and corresponding companies
    • 30, Crown Place, London, EC2A 4ES, United Kingdom

      IIF 7
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 6
  • 1
    DNO NORTH SEA (ROGB) LIMITED - now
    FAROE PETROLEUM (ROGB) LIMITED
    - 2019-05-15 01852301
    ROC OIL (GB) LIMITED - 2015-11-11
    ROC OIL (PPL) LIMITED - 2004-11-08
    PENDLE PETROLEUM LIMITED - 1999-07-21
    KEYDOME LIMITED - 1984-11-01
    1 Park Row, Leeds, United Kingdom
    Active Corporate (5 parents)
    Officer
    2018-04-11 ~ 2019-01-28
    IIF 5 - Director → ME
  • 2
    DNO NORTH SEA (U.K.) LIMITED - now
    FAROE PETROLEUM (U.K.) LIMITED
    - 2019-05-15 04848017 04622251
    FAROE PETROLEUM (LAGGAN) LIMITED - 2004-10-07
    1 Park Row, Leeds, United Kingdom
    Active Corporate (5 parents, 2 offsprings)
    Officer
    2008-07-02 ~ 2019-01-28
    IIF 7 - Director → ME
  • 3
    DNO NORTH SEA LIMITED - now
    DNO NORTH SEA PLC - 2025-07-14
    FAROE PETROLEUM PLC
    - 2019-05-15 04622251 04848017
    FAROE PETROLEUM LIMITED - 2003-06-19 04848017
    1 Park Row, Leeds, United Kingdom
    Active Corporate (5 parents, 4 offsprings)
    Officer
    2007-03-13 ~ 2019-01-28
    IIF 6 - Director → ME
  • 4
    INPEX MALAYSIA E&P 2A LIMITED - now
    LONGBOAT ENERGY (2A) LIMITED
    - 2025-03-21 14595247 15929965, 12020297
    5th Floor One New Change, London, United Kingdom
    Active Corporate (6 parents)
    Officer
    2023-01-16 ~ 2024-06-27
    IIF 3 - Director → ME
  • 5
    SEASCAPE ENERGY (2A) LIMITED - now
    TOPAZ NUMBER ONE LIMITED
    - 2025-04-10 14218229
    5th Floor New Change, London, England
    Active Corporate (4 parents)
    Equity (Company account)
    -4,076 GBP2023-06-30
    Officer
    2023-12-20 ~ 2024-06-27
    IIF 2 - Director → ME
  • 6
    SEASCAPE ENERGY ASIA PLC - now 15929965
    LONGBOAT ENERGY PLC
    - 2024-09-17 12020297 14595247, 15929965
    LONGBOAT ENERGY LTD
    - 2019-11-26 12020297 14595247, 15929965
    5th Floor One New Change, London, United Kingdom
    Active Corporate (7 parents, 4 offsprings)
    Officer
    2019-05-28 ~ 2024-04-30
    IIF 4 - Director → ME
    Person with significant control
    2019-05-28 ~ 2019-09-03
    IIF 1 - Ownership of shares – 75% or more OE
    IIF 1 - Right to appoint or remove directors OE
    IIF 1 - Ownership of voting rights - 75% or more OE

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