---
title: "THACKER WILLIAM L — Ownership Dossier"
canonical: https://whiteintel.dev/entity/856d6b90-2ea8-5be2-be21-cfce1f099304
json: https://whiteintel.dev/api/public/dossier/856d6b90-2ea8-5be2-be21-cfce1f099304
identifier: sec:0001287047
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# THACKER WILLIAM L

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001287047`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/856d6b90-2ea8-5be2-be21-cfce1f099304  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/856d6b90-2ea8-5be2-be21-cfce1f099304  

## Ownership & control

### Holdings / subsidiaries

- **MIRANT CORP** (director) — https://whiteintel.dev/entity/83b27ea2-bf95-53ba-a3df-ce9bb44bd12f
- **PACIFIC ENERGY PARTNERS LP** (director) — https://whiteintel.dev/entity/9f222ad8-6c02-585d-aeb3-339487f8b3e0
- **Kayne Anderson Energy Infrastructure Fund, Inc.** (director) — https://whiteintel.dev/entity/c55e0c83-4db4-5e4e-a7b5-0c10aeae0e5e
- **QEP RESOURCES, INC.** (director) — https://whiteintel.dev/entity/f6da4c1b-1ec5-57a9-82bb-152e2b526be7
- **COPANO ENERGY, L.L.C.** (director) — https://whiteintel.dev/entity/428e45a0-7035-5092-8646-5e9e4f0b44c6
- **GENON ENERGY, INC.** (director) — https://whiteintel.dev/entity/b70a55b4-0052-5565-809c-c2647606fc46
- **KAYNE ANDERSON MIDSTREAM/ENERGY FUND, INC.** (director) — https://whiteintel.dev/entity/ff5253e7-6e3b-5895-a647-27c288fef122
- **KAYNE ANDERSON ENERGY DEVELOPMENT CO** (director) — https://whiteintel.dev/entity/8b5bfdf9-7448-5791-8c08-f2e07b7c8428

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **THACKER WILLIAM L**. Human view: https://whiteintel.dev/entity/856d6b90-2ea8-5be2-be21-cfce1f099304 · Structured JSON: https://whiteintel.dev/api/public/dossier/856d6b90-2ea8-5be2-be21-cfce1f099304._

_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"._