42-461-41147
PRODUCING HorizontalZEKE WEST A 22-21
UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
2
Max Depth
9,000 ft
First Permit
2019-03-28
Latest Activity
2019-03-28
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-08-27
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: DE3 OPERATING 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
2019-08
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 (14) Elevation 2,721 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,369 ft | +352 ft |
| YATES | 2,397 ft | +324 ft |
| GRAYBURG | 4,101 ft | -1,380 ft |
| GRAYBURG | 4,102 ft | -1,381 ft |
| SAN ANDRES - SALTWATER FLOW (San Andres) | 4,181 ft | -1,460 ft |
| SAN ANDRES - SALTWATER FLOW (San Andres) | 4,192 ft | -1,471 ft |
| SPRABERRY | 7,021 ft | -4,300 ft |
| SPRABERRY | 7,022 ft | -4,301 ft |
| WOLFCAMP | 8,517 ft | -5,796 ft |
| WOLFCAMP | 8,559 ft | -5,838 ft |
| DEVONIAN | — | — |
| ELLENBURGER | — | — |
| FUSSELMAN | — | — |
| STRAWN | — | — |
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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 9,044–19,385 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 460 ft | 440 sx |
| 9.625" | 7,884 ft | 795 sx |
| 5.5" | 19,495 ft | 2,825 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 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.
Well Details
- Well Number
- 4201H
- Max Depth
- 9,000 ft
- Drill Type
- Horizontal
- County
- UPTON
- District
- 7
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2019-08-27
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
- 15,400