42-383-34000
Final CompletionNUNN J. F. -A-
REAGAN County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
1
Max Depth
8,400 ft
First Permit
1990-03-28
Latest Activity
1990-03-28
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1990-07-02
Shut-In
—
Plugged
2016-03-15
EWA / Production operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Production: DE3 OPERATING LLC (reported 2020-12)
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: COX, JOHN L.
Resolved via: scheduling → 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
1993-01
Last Production
2026-06
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 (4) Elevation 2,662 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CRETACEOUS | 400 ft | +2,262 ft |
| UPPER SPRABERRY (Spraberry) | 6,572 ft | -3,910 ft |
| LOWER SPRABERRY (Spraberry) | 7,195 ft | -4,533 ft |
| DEAN | 7,976 ft | -5,314 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 (3)
| Interval | Type |
|---|---|
| 6,600–6,626 ft | Perforated |
| 7,208–7,570 ft | Perforated |
| 8,000–8,172 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 500 ft | 350 sx |
| 4.5" | 8,260 ft | 1,500 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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.
No GPS coordinates yet
Well Details
- Well Number
- 21
- Max Depth
- 8,400 ft
- Drill Type
- Vertical
- County
- REAGAN
- District
- 7
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 1990-07-02
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
- 15,403