---
title: "SWEARINGEN JOHN S — Ownership Dossier"
canonical: https://whiteintel.dev/entity/45bbb482-9023-5ca8-91a6-006dfb77b3d2
json: https://whiteintel.dev/api/public/dossier/45bbb482-9023-5ca8-91a6-006dfb77b3d2
identifier: sec:0001635437
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SWEARINGEN JOHN S

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001635437`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/45bbb482-9023-5ca8-91a6-006dfb77b3d2  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/45bbb482-9023-5ca8-91a6-006dfb77b3d2  

## Ownership & control

### Holdings / subsidiaries

- **MPLX LP** (officer) — https://whiteintel.dev/entity/6ff8df4a-00c2-5d6a-9a8e-d66008f8a21a
- **Marathon Petroleum Corp** (officer) — https://whiteintel.dev/entity/71da930a-91cb-5844-9d8a-a3e9a911be8b

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SWEARINGEN JOHN S**. Human view: https://whiteintel.dev/entity/45bbb482-9023-5ca8-91a6-006dfb77b3d2 · Structured JSON: https://whiteintel.dev/api/public/dossier/45bbb482-9023-5ca8-91a6-006dfb77b3d2._

_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"._