42-383-00547
Final CompletionNUNN J. F. A
REAGAN County · District 7 · COX JOHN L. · SPRABERRY (TREND AREA)
Permits
1
Max Depth
8,300 ft
First Permit
1992-03-20
Latest Activity
1992-03-20
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: COX JOHN L. ≠ Production: ROBERTSON RESOURCES, INC. (reported 2025-10)
EWA / Permit operator mismatch
Scheduling: COX JOHN L. ≠ Permit: GLOSSOP, ROBERT L.
Resolved via: scheduling → COX JOHN L.
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 (3) Elevation 2,688 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SPRABERRY | 6,630 ft | -3,942 ft |
| DENA | 8,032 ft | -5,344 ft |
| WOLFCAMP | 8,218 ft | -5,530 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 (4)
| Interval | Type |
|---|---|
| 6,649–6,811 ft | Perforated |
| 7,517–7,535 ft | Perforated |
| 8,085–8,216 ft | Perforated |
| ?–7,500 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 360 ft | 360 sx |
| 7" | 6,532 ft | 300 sx |
Permit History (1)
Applications (1)
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
- 2
- Max Depth
- 8,300 ft
- Drill Type
- Vertical
- County
- REAGAN
- District
- 7
- Operator
- COX JOHN L.
Operator
- Name
- COX, JOHN L
- Location
- MIDLAND
- P-5 Status
- Inactive (filed 2003-03-21)
- Cum Oil (all leases)
- 15,795,687 bbl
- Cum Gas (all leases)
- 2,577,420 mcf
- Total Permits
- 1,123