42-495-05681
Final CompletionSEALY-SMITH FOUNDATION -A-
WINKLER County · District 8 · LEGACY RESERVES OPERATING LP · HALLEY (DEVONIAN)
Permits
1
Max Depth
12,379 ft
First Permit
2018-06-27
Latest Activity
2018-06-27
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1960-11-14
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: LEGACY RESERVES OPERATING LP ≠ Production: EXTEX OPERATING COMPANY (reported 2026-04)
Resolved via: production → 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
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 2,735 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,423 ft | +312 ft |
| QUEEN | 3,190 ft | -455 ft |
| SAN ANDRES | 3,735 ft | -1,000 ft |
| HOLT | 4,898 ft | -2,163 ft |
| GLORIETA | 4,957 ft | -2,222 ft |
| CLEARFORK (Clear Fork) | 5,100 ft | -2,365 ft |
| DEVONIAN | 9,556 ft | -6,821 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 ↗
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 (2)
| Interval | Type |
|---|---|
| 5,185–5,492 ft | Perforated |
| 9,700–9,856 ft | Perforated |
Casing (10)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 519 ft | 550 sx |
| 13.375" | 519 ft | — |
| 13.375" | 535 ft | — |
| 9.625" | 4,236 ft | 2,900 sx |
| 9.625" | 4,236 ft | — |
| 9.625" | 4,249 ft | 2,900 sx |
| 2.375" | 9,576 ft | — |
| 7" | 10,590 ft | — |
| 7" | 10,600 ft | 350 sx |
| 7" | 10,600 ft | 350 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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.
Well Details
- Well Number
- 1
- Max Depth
- 12,379 ft
- Drill Type
- Vertical
- County
- WINKLER
- District
- 8
- Operator
- LEGACY RESERVES OPERATING LP
- Completed
- 1960-11-14
Operator
- Location
- DENVER
- P-5 Status
- Inactive (filed 2025-05-19)
- Cum Oil (all leases)
- 47,961,187 bbl
- Cum Gas (all leases)
- 303,890,474 mcf
- Total Permits
- 439