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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

Southworth, John David

    Related profiles found in government register
  • Southworth, John David
    British

    Registered addresses and corresponding companies
  • Southworth, John David
    British director

    Registered addresses and corresponding companies
    • Capital House 25 Chapel Street, London, NW1 5DQ

      IIF 8
  • Southworth, John David
    British legal manager

    Registered addresses and corresponding companies
    • Samarra Hawks Hill, Bourne End, Buckinghamshire, SL8 5JQ

      IIF 9
  • Southworth, John David

    Registered addresses and corresponding companies
    • Samarra Hawks Hill, Bourne End, Buckinghamshire, SL8 5JQ

      IIF 10
  • Southworth, John David
    British born in August 1950

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Samarra, Hawks Hill, Bourne End, Buckinghamshire, SL8 5JQ, United Kingdom

      IIF 11
  • Mr John David Southworth
    British born in August 1950

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Samarra, Hawks Hill, Bourne End, SL8 5JQ, United Kingdom

      IIF 12
child relation
Offspring entities and appointments 11
  • 1
    CORONA ENERGY RETAIL 2 LIMITED - now
    AURORA ENERGY RETAIL 2 LIMITED - 2003-10-03
    VECTOR GAS LIMITED
    - 2003-09-23 SC138299
    HYDRO-ELECTRIC GAS LIMITED - 1993-07-13
    DUNWILCO (316) LIMITED - 1993-02-25
    50 Lothian Road, Festival Square, Edinburgh
    Active Corporate (42 parents)
    Officer
    1993-08-13 ~ 1997-05-23
    IIF 5 - Secretary → ME
  • 2
    FUJAIRAH OIL AND GAS UK 11 LIMITED - now
    ROCKROSE UKCS 11 LIMITED - 2021-01-26
    MARATHON INTERNATIONAL OIL (G.B.) LIMITED - 2019-07-02
    MARATHON INTERNATIONAL PETROLEUM(G.B.)LIMITED
    - 2011-07-08 00638574 03290761... (more)
    Frp Advisory Trading Limited Jupiter House Warley Hill Business Park, The Drive, Brentwood, Essex
    Liquidation Corporate (55 parents)
    Officer
    1992-04-01 ~ 1999-07-02
    IIF 7 - Secretary → ME
  • 3
    FUJAIRAH OIL AND GAS UK 12 LIMITED - now
    ROCKROSE UKCS 12 LIMITED - 2021-01-26
    MARATHON OIL NORTH SEA (G.B.) LIMITED
    - 2019-07-02 00981126
    PAN OCEAN OIL (U.K.) LIMITED - 1979-12-31
    152-160 Kemp House City Road, London, England
    Dissolved Corporate (44 parents)
    Officer
    1992-04-01 ~ 1999-07-02
    IIF 1 - Secretary → ME
  • 4
    FUJAIRAH OIL AND GAS UK LLC - now
    ROCKROSE UKCS8 LLC - 2021-03-03
    MARATHON OIL U.K. LLC - 2019-07-04
    MARATHON OIL U.K., LTD.
    - 2011-05-17 FC009587 SF000275
    Wilmington, County Of New Castle, Delaware, Usa, United States
    Converted / Closed Corporate (51 parents, 1 offspring)
    Officer
    1993-10-19 ~ 1999-07-02
    IIF 8 - Director → ME
  • 5
    JDS LINK LIMITED
    12044954
    Samarra, Hawks Hill, Bourne End, Buckinghamshire, United Kingdom
    Active Corporate (1 parent)
    Officer
    2019-06-11 ~ now
    IIF 11 - Director → ME
    Person with significant control
    2019-06-11 ~ now
    IIF 12 - Ownership of shares – 75% or more OE
  • 6
    MARATHON INTERNATIONAL OIL SUPPLY COMPANY (G.B.) LIMITED - now
    MARATHON INTERNATIONAL PETROLEUM SUPPLY COMPANY (G.B.) LIMITED
    - 2011-07-08 03290761 00638574... (more)
    91 Wimpole Street, London, England
    Dissolved Corporate (28 parents)
    Officer
    1996-12-06 ~ 1999-07-02
    IIF 9 - Secretary → ME
  • 7
    MARATHON OIL EXPLORATION (U.K.) LIMITED
    - now 01007674
    HUSKY OIL (UK) LIMITED - 1984-10-29
    Capital House, 25 Chapel Street, London
    Dissolved Corporate (29 parents)
    Officer
    1992-04-01 ~ 1999-07-02
    IIF 2 - Secretary → ME
  • 8
    MARATHON UPSTREAM NORTH SEA (G.B.) LIMITED - now
    MARATHON PETROLEUM NORTH SEA (G.B.) LIMITED
    - 2011-06-29 00812455
    Capital House, 25 Chapel Street, London
    Dissolved Corporate (28 parents)
    Officer
    1992-04-01 ~ 1999-07-02
    IIF 6 - Secretary → ME
  • 9
    MARATHON UPSTREAM U.K. LLC - now
    MARATHON PETROLEUM U.K. LLC - 2011-07-08
    MARATHON PETROLEUM U.K., LTD
    - 2011-05-17 FC005250
    No 100 West Tenth Street, City Of Wilmington, County Of New Castle, Delaware Usa, United States
    Converted / Closed Corporate (45 parents)
    Officer
    1992-04-01 ~ 1999-07-02
    IIF 4 - Secretary → ME
  • 10
    NATUNA UK (KAKAP 2) LIMITED - now
    SANTOS UK (KAKAP 2) LIMITED - 2009-06-15
    NOVUS UK (KAKAP 2) LIMITED - 2005-08-09
    MARATHON PETROLEUM U.K. KAKAP LIMITED
    - 1996-05-20 03115420
    MARATHON OIL PETROLEUM U.K. KAKAP LIMITED
    - 1996-03-21 03115420
    PRECIS (1400) LIMITED
    - 1996-03-07 03115420 02832846... (more)
    13th Floor One Angel Court, London, United Kingdom
    Active Corporate (33 parents)
    Officer
    1996-02-26 ~ 1996-03-25
    IIF 3 - Secretary → ME
  • 11
    ROCKROSE UKCS 9 LIMITED - now
    MARATHON SERVICE (G.B.) LIMITED
    - 2019-07-02 01293052
    5th Floor Viaro House, 20-23 Holborn, London, England
    Active Corporate (52 parents)
    Officer
    1992-04-01 ~ 1999-07-02
    IIF 10 - Secretary → ME

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Contains public sector information retrieved at 5 April 2026 and licensed under the Open Government Licence v3.0.