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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.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Dr Christopher David Longman

    Related profiles found in government register
  • Dr Christopher David Longman
    British born in June 1956

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Staplow House, Staplow, Ledbury, Herefordshire, HR8 1NP

      IIF 1
  • Longman, Christopher David, Dr
    British born in June 1956

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Staplow House, Staplow, Ledbury, Herefordshire, HR8 1NP

      IIF 2
  • Longman, Christopher David, Dr
    British director born in June 1956

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 20, Triton Street, London, NW1 3BF

      IIF 3
    • Heron Tower 110, Bishopsgate, London, EC2N 4AY, United Kingdom

      IIF 4
  • Longman, Christopher David, Dr
    British geologist born in June 1956

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 7 Wornal Park, Menmarsh Road, Worminghall, Aylesbury, Buckinghamshire, HP18 9JX, England

      IIF 5
    • 65, Woodbridge Road, Guildford, Surrey, GU1 4RD, United Kingdom

      IIF 6
    • Staplow House, Staplow, Ledbury, Herefordshire, HR8 1NP

      IIF 7 IIF 8 IIF 9
  • Longman, Christopher David, Dr
    British

    Registered addresses and corresponding companies
    • Staplow House, Staplow, Ledbury, Herefordshire, HR8 1NP

      IIF 10
child relation
Offspring entities and appointments 9
  • 1
    CDL UPSTREAM LIMITED
    03601454
    Staplow House, Staplow, Ledbury, Herefordshire
    Active Corporate (4 parents)
    Officer
    1998-07-21 ~ now
    IIF 2 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 1 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 2
    CHALLENGE ENERGY LIMITED
    - now 03411275
    CHALLENGE ASSET MANAGEMENT LIMITED
    - 2003-04-10 03411275
    BONDCO 648 LIMITED - 1997-10-08
    7 Wornal Park, Menmarsh Road, Worminghall, Aylesbury, Bucks, England
    Dissolved Corporate (18 parents, 2 offsprings)
    Officer
    2000-10-01 ~ 2014-11-03
    IIF 6 - Director → ME
  • 3
    CHALLENGE GAS TRADING LIMITED
    - now 03930190
    BONDCO 783 LIMITED - 2000-05-02
    7 Wornal Park Menmarsh Road, Worminghall, Aylesbury, Buckinghamshire
    Dissolved Corporate (10 parents)
    Officer
    2003-09-23 ~ 2014-11-03
    IIF 5 - Director → ME
  • 4
    CHALLENGE OIL & GAS LIMITED
    - now 03411281
    BONDCO 649 LIMITED - 1997-10-08
    7 Wornal Park Menmarsh Road, Worminghall, Aylesbury, Buckinghamshire
    Dissolved Corporate (13 parents)
    Officer
    2000-10-01 ~ 2014-11-03
    IIF 8 - Director → ME
  • 5
    CROFT EXPLORATION LIMITED
    SC092120
    110 Queen Street, Glasgow
    Dissolved Corporate (30 parents)
    Officer
    2000-03-15 ~ 2008-12-16
    IIF 9 - Director → ME
  • 6
    DANA PETROLEUM (BVUK) LIMITED - now
    BOW VALLEY PETROLEUM (UK) LIMITED
    - 2009-12-31 03337437 00825828
    78 Cannon Street, London, England
    Active Corporate (34 parents)
    Officer
    1999-10-06 ~ 2008-12-11
    IIF 7 - Director → ME
  • 7
    FIRST OIL SNS LIMITED - now
    CALEDONIA SNS LIMITED - 2004-11-11
    CONSORT NORTH SEA LIMITED - 2003-11-07
    ENTERPRISE OIL NORTH SEA LIMITED - 2002-02-06
    PETROBRAS NORTH SEA LIMITED - 2001-09-10
    SANTOS EUROPE LIMITED
    - 1998-06-30 00986309
    PEKO EXPLORATION (UK) LIMITED - 1992-04-16
    IU OIL & GAS LIMITED - 1990-07-17
    21 Regatta House, 32 Twickenham Road, Teddington, Middlesex
    Dissolved Corporate (56 parents)
    Officer
    1998-04-20 ~ 1998-06-30
    IIF 10 - Secretary → ME
  • 8
    GAZPROM UK RESOURCES, S.A.
    FC031912
    Avpamanaco Edif Centro Empresarial El Rosal Piso4, Local 1 Urb El Rosal, Caracas, 1060, Venezuela
    Active Corporate (10 parents)
    Officer
    2014-05-28 ~ 2021-03-23
    IIF 3 - Director → ME
  • 9
    URDANETAGAZPROM-2, S.A.
    FC031909
    Piso 7, Oficini 76, Municipio Chacao Campo Alegre, Torre Kyra, Ave. Francisco De Miranda, Caracas, 1060, Bolivarian Republic Of Venezuela
    Converted / Closed Corporate (7 parents)
    Officer
    2014-05-28 ~ now
    IIF 4 - Director → ME

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