---
title: "BROCK JOHN R — Ownership Dossier"
canonical: https://whiteintel.dev/entity/fbd4dfa4-bd63-59d7-9663-1d9dcc9df584
json: https://whiteintel.dev/api/public/dossier/fbd4dfa4-bd63-59d7-9663-1d9dcc9df584
identifier: sec:0001232948
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BROCK JOHN R

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001232948`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/fbd4dfa4-bd63-59d7-9663-1d9dcc9df584  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fbd4dfa4-bd63-59d7-9663-1d9dcc9df584  

## Ownership & control

### Holdings / subsidiaries

- **W-H ENERGY SERVICES INC** (director) — https://whiteintel.dev/entity/7c8fa2d8-0517-5ece-9be0-6df9e031b851

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BROCK JOHN R**. Human view: https://whiteintel.dev/entity/fbd4dfa4-bd63-59d7-9663-1d9dcc9df584 · Structured JSON: https://whiteintel.dev/api/public/dossier/fbd4dfa4-bd63-59d7-9663-1d9dcc9df584._

_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"._