42-115-32503
Final CompletionSCHOOLER
DAWSON County · District 8 · ESTANCIA OIL & GAS LLC · JO-MILL (SPRABERRY)
Permits
1
Max Depth
7,650 ft
First Permit
1988-09-20
Latest Activity
1988-09-20
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1988-11-01
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: ESTANCIA OIL & GAS LLC ≠ Permit: VOSKAMP EXPLORATION, INC.
Resolved via: production → ESTANCIA OIL & GAS, LLC
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
DAWSON County disposal market →Permitted Volume
1,000 bbl/d
Max Pressure
1,500 psi
Injection Interval
6,500–7,600 ft
Injected (12mo)
35,648 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 (6) Elevation 2,825 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,910 ft | -85 ft |
| SAN ANDRES | 3,210 ft | -385 ft |
| SAN ANDRES | 3,500 ft | -675 ft |
| UPPER SPRABERRY (Spraberry) | 6,425 ft | -3,600 ft |
| SPRABERRY | 6,620 ft | -3,795 ft |
| JO MILL SPRABERRY (Jo Mill) | 7,090 ft | -4,265 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 (2)
| Interval | Type |
|---|---|
| 6,620–7,517 ft | Perforated |
| 7,496–7,517 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,224 ft | 425 sx |
| 4.5" | 7,600 ft | 700 sx |
Permit History (1)
Applications (1)
Records & Logs
4 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
- 1
- Max Depth
- 7,650 ft
- Drill Type
- Vertical
- County
- DAWSON
- District
- 8
- Operator
- ESTANCIA OIL & GAS LLC
- Completed
- 1988-11-01
Operator
- Location
- AUSTIN
- P-5 Status
- Active (filed 2025-09-18)
- Cum Oil (all leases)
- 2,138,764 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O
- Total Permits
- 37