42-329-34308
PRODUCING HorizontalWALLIN H. C.
MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · DORA ROBERTS (DEVONIAN)
Permits
2
Max Depth
13,000 ft
First Permit
2000-05-24
Latest Activity
2000-05-24
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2000-08-10
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: OCEAN ENERGY, INC.
Resolved via: production → PIONEER NATURAL RES. USA, INC.
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
2000-08
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (6) Elevation 2,891 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER WOLFCAMP (Wolfcamp) | 9,105 ft | -6,214 ft |
| WOLFCAMP | 9,822 ft | -6,931 ft |
| STRAWN | 10,033 ft | -7,142 ft |
| PARKS | 10,437 ft | -7,546 ft |
| SANDERS | 10,644 ft | -7,753 ft |
| WOODFORD | 11,554 ft | -8,663 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (2)
| Interval | Type |
|---|---|
| 11,902–11,393 ft | Open hole |
| 11,902–14,091 ft | Open hole |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 400 ft | 365 sx |
| 9.625" | 5,357 ft | 2,150 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4H
- Max Depth
- 13,000 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2000-08-10
Operator
- Location
- Y SPRING
- P-5 Status
- Active (filed 2025-08-01)
- Cum Oil (all leases)
- 1,771,882,421 bbl
- Cum Gas (all leases)
- 1,763,727,021 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 15,425