---
title: "OCON MARINE OIL & GAS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/d97ea446-1c04-5981-9a4f-e6eabc1ca652
json: https://whiteintel.dev/api/public/dossier/d97ea446-1c04-5981-9a4f-e6eabc1ca652
identifier: oo:GB-COH-08732912
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# OCON MARINE OIL & GAS LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-08732912`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/d97ea446-1c04-5981-9a4f-e6eabc1ca652  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/d97ea446-1c04-5981-9a4f-e6eabc1ca652  

## Ownership & control

### Owners / controllers

- **Mr Mark Vincent Thomson** (beneficial owner) — 50% — https://whiteintel.dev/entity/8a64dcd1-b4a7-5a06-acd5-c9efae210459
- **Mr Andrew Gwyn Davies** (beneficial owner) — 50% — https://whiteintel.dev/entity/0aee2bec-4d96-5670-9e70-14962eb9f6a1
- **Mr Mark Vincent Thomson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/46ca228f-2cd3-426e-b43a-9c8a951e2e81
- **Mr Andrew Gwyn Davies** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/1c0f3198-e3b6-4128-8673-d868ebf0d5de

### UBO chain (walk to the ultimate owner)

A **4-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `08732912`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2013-10-15
- **Registered office:** 22 Market Square Charles Street, Milford Haven, Pembrokeshire, SA73 2AE, Wales
- **SIC:** 96090

### Officers

- DAVIES, Andrew Gwyn, Mr. — director · British · appointed 2013-10-15
- THOMSON, Mark Vincent, Mr. — director · British · appointed 2013-10-15

### Beneficial owners (Persons with Significant Control)

- Mr Mark Vincent Thomson — 25–50% shares · individual PSC · Wales — since 2016-10-15
- Mr Andrew Gwyn Davies — 25–50% shares · individual PSC · Wales — since 2016-10-15

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/08732912
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/08732912

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **OCON MARINE OIL & GAS LTD**. Human view: https://whiteintel.dev/entity/d97ea446-1c04-5981-9a4f-e6eabc1ca652 · Structured JSON: https://whiteintel.dev/api/public/dossier/d97ea446-1c04-5981-9a4f-e6eabc1ca652._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._