42-461-40230
PRODUCING HorizontalRATLIFF 28
UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC
Permits
1
Max Depth
9,900 ft
First Permit
2015-10-21
Latest Activity
2015-10-21
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2016-04-09
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: PARSLEY ENERGY OPERATIONS, LLC
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
2013-06
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 (9) Elevation 2,794 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES - SALTWATER FLOW (San Andres) | 5,240 ft | -2,446 ft |
| SPRABERRY | 8,450 ft | -5,656 ft |
| WOLFCAMP | 9,503 ft | -6,709 ft |
| DEVONIAN | — | — |
| ELLENBURGER | — | — |
| FUSSELMAN | — | — |
| GRAYBURG | — | — |
| STRAWN | — | — |
| YATES | — | — |
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 (1)
| Interval | Type |
|---|---|
| 10,053–15,167 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 435 ft | 465 sx |
| 9.625" | 8,760 ft | 755 sx |
| 5.5" | 15,270 ft | 2,155 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4401H
- Max Depth
- 9,900 ft
- Drill Type
- Horizontal
- County
- UPTON
- District
- 7
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2016-04-09
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
- 15,491