---
title: "PIONEER SOUTHWEST ENERGY PARTNERS L.P. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a54ea08c-dbfc-516b-8299-eeba4d0fc683
json: https://whiteintel.dev/api/public/dossier/a54ea08c-dbfc-516b-8299-eeba4d0fc683
identifier: sec:0001407463
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PIONEER SOUTHWEST ENERGY PARTNERS L.P.

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001407463`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a54ea08c-dbfc-516b-8299-eeba4d0fc683  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a54ea08c-dbfc-516b-8299-eeba4d0fc683  

## Ownership & control

### Owners / controllers

- **KELLUM DANNY L** (director) — https://whiteintel.dev/entity/6de2f3f7-f334-5d04-a1ed-3440bde6925e
- **SMITH ARTHUR L** (director) — https://whiteintel.dev/entity/8f5cf2b2-d3c5-523d-b54f-6d47afaee1d4
- **GOBE PHILLIP A** (director) — https://whiteintel.dev/entity/9bf0a0a8-9d3b-59b0-9fff-09ef2b03d0ee
- **CHEATWOOD CHRIS J** (officer) — https://whiteintel.dev/entity/65494c7f-99c2-50c0-9385-480caf410b1b
- **GOSULE ALAN L** (director) — https://whiteintel.dev/entity/00a21b9d-ffbd-5b33-858d-61ad7b534534
- **KELLUM DANNY L** (officer) — https://whiteintel.dev/entity/6de2f3f7-f334-5d04-a1ed-3440bde6925e
- **SHEFFIELD SCOTT D** (officer) — https://whiteintel.dev/entity/eebc6c91-aeca-5841-b00b-dde2dea180da
- **BERG MARK STEPHEN** (officer) — https://whiteintel.dev/entity/83e9d355-5b50-5703-9915-9cad75b56326
- **DOVE TIMOTHY L** (officer) — https://whiteintel.dev/entity/da46a9f4-2f7e-512c-a3bc-f9f4fd230f11
- **DEALY RICHARD P** (director) — https://whiteintel.dev/entity/6e0b4e47-ef71-5548-9eba-0d4c173543c3
- **HALL FRANK W.** (officer) — https://whiteintel.dev/entity/a4d673b2-1417-546b-9b3c-bd831224c8f9
- **MITCHELL ROYCE** (director) — https://whiteintel.dev/entity/f15f1e7a-676a-5b10-9de8-170595da623f
- **SHEFFIELD SCOTT D** (director) — https://whiteintel.dev/entity/eebc6c91-aeca-5841-b00b-dde2dea180da
- **DEALY RICHARD P** (officer) — https://whiteintel.dev/entity/6e0b4e47-ef71-5548-9eba-0d4c173543c3
- **MESA OPERATING CO** (tenpercentownerother) — https://whiteintel.dev/entity/a2ac6412-3ea8-5baa-9059-893e880ff8d4
- **PIONEER NATURAL RESOURCES CO** (tenpercentownerother) — https://whiteintel.dev/entity/edf7d0cf-d9cc-56b8-84b9-0eb6f1d491f2
- **MESA OPERATING CO** (other) — https://whiteintel.dev/entity/a2ac6412-3ea8-5baa-9059-893e880ff8d4
- **HANNES WILLIAM F** (officer) — https://whiteintel.dev/entity/1e8e07a8-066c-5e7f-8178-2858e760f9f9
- **PIONEER NATURAL RESOURCES GP LLC** (other) — https://whiteintel.dev/entity/1cd50cba-82ba-5e77-ad86-da0e40683c6d
- **PIONEER NATURAL RESOURCES CO** (other) — https://whiteintel.dev/entity/edf7d0cf-d9cc-56b8-84b9-0eb6f1d491f2

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

1. **KELLUM DANNY L** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **SMITH ARTHUR L** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **GOBE PHILLIP A** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **CHEATWOOD CHRIS J** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **GOSULE ALAN L** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **KELLUM DANNY L** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **SHEFFIELD SCOTT D** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **BERG MARK STEPHEN** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **DOVE TIMOTHY L** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **DEALY RICHARD P** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **HALL FRANK W.** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **MITCHELL ROYCE** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **SHEFFIELD SCOTT D** — director → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **DEALY RICHARD P** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **MESA OPERATING CO** — tenpercentownerother → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **PIONEER NATURAL RESOURCES CO** — tenpercentownerother → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **MESA OPERATING CO** — other → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **HANNES WILLIAM F** — officer → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **PIONEER NATURAL RESOURCES GP LLC** — other → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
1. **PIONEER NATURAL RESOURCES CO** — other → *PIONEER SOUTHWEST ENERGY PARTNERS L.P.*
2. **HOLDERNESS DARIN G** — officer → *PIONEER NATURAL RESOURCES CO*
2. **HANNES WILLIAM F** — officer → *PIONEER NATURAL RESOURCES CO*
2. **DOVE TIMOTHY L** — officer → *PIONEER NATURAL RESOURCES CO*
2. **ALAMEDDINE A R** — officer → *PIONEER NATURAL RESOURCES CO*
2. **SHEFFIELD SCOTT D** — officer → *PIONEER NATURAL RESOURCES CO*
2. **GARDNER R HARTWELL** — director → *PIONEER NATURAL RESOURCES CO*
2. **SHEFFIELD SCOTT D** — director → *PIONEER NATURAL RESOURCES CO*
2. **BERG MARK STEPHEN** — officer → *PIONEER NATURAL RESOURCES CO*
2. **DEALY RICHARD P** — officer → *PIONEER NATURAL RESOURCES CO*
2. **KELLUM DANNY L** — officer → *PIONEER NATURAL RESOURCES CO*
2. **CHEATWOOD CHRIS J** — officer → *PIONEER NATURAL RESOURCES CO*
2. **KLEINMAN MARK H** — officer → *PIONEER NATURAL RESOURCES CO*
2. **MITCHELL ROYCE** — director → *PIONEER NATURAL RESOURCES CO*
2. **BUCHANAN EDISON C** — director → *PIONEER NATURAL RESOURCES CO*
2. **WASHBURN CHRISTOPHER L** — officer → *PIONEER NATURAL RESOURCES CO*
2. **Black Bonnie S.** — officer → *PIONEER NATURAL RESOURCES CO*
2. **WOOD PHOEBE A** — director → *PIONEER NATURAL RESOURCES CO*
2. **SHAH NEAL H** — officer → *PIONEER NATURAL RESOURCES CO*
2. **ALAMEDDINE A R** — director → *PIONEER NATURAL RESOURCES CO*
2. **HALL JEROME D JR** — officer → *PIONEER NATURAL RESOURCES CO*
2. **GOBE PHILLIP A** — director → *PIONEER NATURAL RESOURCES CO*
2. **TAYLOR TYSON L.** — officer → *PIONEER NATURAL RESOURCES CO*
2. **DEALY RICHARD P** — director → *PIONEER NATURAL RESOURCES CO*
2. **BILLINGSLEY LORI GEORGE** — director → *PIONEER NATURAL RESOURCES CO*
2. **MCDONALD ELIZABETH ANNE** — officer → *PIONEER NATURAL RESOURCES CO*
2. **Dreyfus Maria S.** — director → *PIONEER NATURAL RESOURCES CO*
2. **METHVIN STACY P.** — director → *PIONEER NATURAL RESOURCES CO*
2. **THOMPSON J KENNETH** — director → *PIONEER NATURAL RESOURCES CO*
2. **GALLAGHER MATTHEW** — director → *PIONEER NATURAL RESOURCES CO*
2. **Hernandez Jacinto J** — director → *PIONEER NATURAL RESOURCES CO*
2. **RISCH FRANK A** — director → *PIONEER NATURAL RESOURCES CO*
2. **GRILLOT LARRY R.** — director → *PIONEER NATURAL RESOURCES CO*
2. **Montemayor Margaret** — officer → *PIONEER NATURAL RESOURCES CO*
2. **WORTLEY MICHAEL D** — director → *PIONEER NATURAL RESOURCES CO*
2. **STEWART STEPHANIE D** — officer → *PIONEER NATURAL RESOURCES CO*
2. **KUIPER CRAIG A.** — officer → *PIONEER NATURAL RESOURCES CO*
2. **SUTPHEN MONA** — director → *PIONEER NATURAL RESOURCES CO*
2. **PAULSEN CHRISTOPHER M.** — officer → *PIONEER NATURAL RESOURCES CO*
2. **CATES ANDREW F.** — director → *PIONEER NATURAL RESOURCES CO*
2. **SHEFFIELD KENNETH H JR** — officer → *PIONEER NATURAL RESOURCES CO*
2. **DOVE TIMOTHY L** — director → *PIONEER NATURAL RESOURCES CO*
2. **FAIRBROOK TERESA A** — officer → *PIONEER NATURAL RESOURCES CO*
2. **HOPKINS FRANK E** — officer → *PIONEER NATURAL RESOURCES CO*
2. **RAMSEY CHARLES E JR** — director → *PIONEER NATURAL RESOURCES CO*
2. **WATSON JIM ALBERT** — director → *PIONEER NATURAL RESOURCES CO*
2. **HALL FRANK W.** — officer → *PIONEER NATURAL RESOURCES CO*
2. **STILL JAY P** — officer → *PIONEER NATURAL RESOURCES CO*
2. **ARTHUR THOMAS D** — director → *PIONEER NATURAL RESOURCES CO*
2. **REIMAN SCOTT** — director → *PIONEER NATURAL RESOURCES CO*
2. **LUNDQUIST ANDREW D** — director → *PIONEER NATURAL RESOURCES CO*
2. **MCMANUS DAVID** — officer → *PIONEER NATURAL RESOURCES CO*
2. **LAWSON LINDA K** — director → *PIONEER NATURAL RESOURCES CO*
2. **BAROFFIO JAMES R** — director → *PIONEER NATURAL RESOURCES CO*
2. **SOLBERG ROBERT A** — director → *PIONEER NATURAL RESOURCES CO*
2. **SEXTON MARK S** — director → *PIONEER NATURAL RESOURCES CO*

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PIONEER SOUTHWEST ENERGY PARTNERS L.P.**. Human view: https://whiteintel.dev/entity/a54ea08c-dbfc-516b-8299-eeba4d0fc683 · Structured JSON: https://whiteintel.dev/api/public/dossier/a54ea08c-dbfc-516b-8299-eeba4d0fc683._

_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"._