42-115-33000
PRODUCINGWEST SPRABERRY UNIT
DAWSON County · District 8 · JO MILL OIL COMPANY LLC · SPRABERRY W. (DEEP SPRABERRY)
Permits
1
Max Depth
7,750 ft
First Permit
1997-11-12
Latest Activity
1997-11-12
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1998-01-17
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: JO MILL OIL COMPANY LLC ≠ Permit: TEXACO E & P INC.
Resolved via: production → JO MILL OIL COMPANY 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
1993-12
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 (4) Elevation 2,900 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,290 ft | +610 ft |
| SAN ANDRES TOP (San Andres) | 3,670 ft | -770 ft |
| SAN ANDRES BASE (San Andres) | 4,780 ft | -1,880 ft |
| SPRABERRY TOP (Spraberry) | 6,630 ft | -3,730 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 |
|---|---|
| 6,632–6,636 ft | Perforated |
| 6,754–6,794 ft | Perforated |
| 6,992–7,014 ft | Perforated |
| 7,314–7,502 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 11.75" | 379 ft | 250 sx |
| 8.625" | 4,550 ft | 1,630 sx |
| 5.5" | 7,700 ft | 1,095 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record · 1 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
- 308
- Max Depth
- 7,750 ft
- Drill Type
- Vertical
- County
- DAWSON
- District
- 8
- Operator
- JO MILL OIL COMPANY LLC
- Completed
- 1998-01-17
Operator
- Location
- FORT WORTH
- P-5 Status
- Active (filed 2025-07-09)
- Cum Oil (all leases)
- 4,349,903 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O