SEALY & SMITH FOUNDATION -A- 4&5
WINKLER County · District 8 · EXTEX OPERATING COMPANY · HALLEY SOUTH (QUEEN SAND)
Permits
2
Max Depth
11,500 ft
First Permit
1982-08-10
Latest Activity
1983-10-03
Lifespan
1 yrs
Regulatory Status
Schedule
ON SCHEDULE
Completion
1984-01-06
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Production operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Production: LEGACY RESERVES OPERATING LP (reported 2018-05)
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: SUN EXPL. & PROD. CO.-MIDLAND
Resolved via: scheduling → EXTEX OPERATING COMPANY
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
Injection / Disposal
WINKLER County disposal market →Permitted Volume
—
Max Pressure
—
Injection Interval
—
Injected (12mo)
2,684 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-08-01)
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
No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.
Perforations (2)
| Interval | Type |
|---|---|
| 3,244–3,249 ft | Perforated |
| 3,284–3,320 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 552 ft | 550 sx |
| 8.625" | 2,390 ft | 700 sx |
| 2.375" | 3,207 ft | — |
| 4.5" | 3,498 ft | 300 sx |
Permit History (2)
Applications (2)
Records & Logs
2 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
- 5
- Max Depth
- 11,500 ft
- Drill Type
- Vertical
- County
- WINKLER
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 1984-01-06
Operator
- Name
- EXTEX OPER CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-07)
- Cum Oil (all leases)
- 5,887,486 bbl
- Cum Gas (all leases)
- 10,031,045 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 117