---
title: "WARBURG PINCUS XI (E&P) PARTNERS-B, L.P. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9bba2ced-918a-5e4e-9d26-afbe1ffa63f8
json: https://whiteintel.dev/api/public/dossier/9bba2ced-918a-5e4e-9d26-afbe1ffa63f8
identifier: sec:0001676974
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# WARBURG PINCUS XI (E&P) PARTNERS-B, L.P.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001676974`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9bba2ced-918a-5e4e-9d26-afbe1ffa63f8  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9bba2ced-918a-5e4e-9d26-afbe1ffa63f8  

## Ownership & control

### Holdings / subsidiaries

- **BASIC EARTH SCIENCE SYSTEMS INC** (tenpercentowner) — https://whiteintel.dev/entity/508f9914-7c99-5f24-b15a-bc693604f7d9
- **WEX Inc.** (director) — https://whiteintel.dev/entity/355de106-69a8-50ac-a994-22c9457cc710

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **WARBURG PINCUS XI (E&P) PARTNERS-B, L.P.**. Human view: https://whiteintel.dev/entity/9bba2ced-918a-5e4e-9d26-afbe1ffa63f8 · Structured JSON: https://whiteintel.dev/api/public/dossier/9bba2ced-918a-5e4e-9d26-afbe1ffa63f8._

_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"._