42-383-33493
Final CompletionROCKER B
REAGAN County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)
Permits
1
Max Depth
7,000 ft
First Permit
1985-06-10
Latest Activity
1985-06-10
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2008-07-15
Shut-In
—
Plugged
2012-08-20
EWA / Permit operator mismatch
Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: COX, JOHN L.
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
1993-01
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 (7) Elevation 2,730 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 700 ft | +2,030 ft |
| TOP UPPER SPRABERRY (Spraberry) | 5,250 ft | -2,520 ft |
| UPPER SPRABERRY (Spraberry) | 5,250 ft | -2,520 ft |
| LOWER SPRABERRY (Spraberry) | 5,850 ft | -3,120 ft |
| TOP LOWER SPRABERRY (Spraberry) | 5,850 ft | -3,120 ft |
| DEAN | 6,610 ft | -3,880 ft |
| TOP DEAN (Dean) | 6,610 ft | -3,880 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 |
|---|---|
| 5,252–5,270 ft | Perforated |
| 5,860–6,214 ft | Perforated |
| 6,614–6,807 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 705 ft | 500 sx |
| 4.5" | 6,830 ft | 1,000 sx |
Permit History (1)
Applications (2)
Records & Logs
4 completion filings on record.
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
- 7,000 ft
- Drill Type
- Vertical
- County
- REAGAN
- District
- 7
- Operator
- PIONEER NATURAL RES. USA INC.
- Completed
- 2008-07-15
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