42-033-30447
Final CompletionJO-MILL UNIT
BORDEN County · District 8 · JO MILL OIL COMPANY LLC · JO-MILL (SPRABERRY)
Permits
1
Max Depth
7,969 ft
First Permit
1978-02-03
Latest Activity
1978-02-03
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1978-04-22
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: JO MILL OIL COMPANY LLC ≠ Permit: TEXACO 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
1993-01
Last Production
2026-07
Injection / Disposal
Permitted Volume
850 bbl/d
Max Pressure
2,500 psi
Injection Interval
7,000–8,000 ft
Injected (12mo)
149,593 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 (5) Elevation 2,685 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RED BED | 205 ft | +2,480 ft |
| YATES | 2,021 ft | +664 ft |
| SAN ANDRES | 3,958 ft | -1,273 ft |
| UPPER SPRABERRY (Spraberry) | 6,300 ft | -3,615 ft |
| SPRABERRY | 7,364 ft | -4,679 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 (3)
| Interval | Type |
|---|---|
| 7,312–7,954 ft | Perforated |
| 7,364–7,417 ft | Perforated |
| ?–7,874 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 11.75" | 338 ft | 300 sx |
| 8.625" | 3,224 ft | 2,000 sx |
| 8.625" | 3,234 ft | 2,000 sx |
| 5.5" | 7,969 ft | 2,000 sx |
| 5.5" | — | — |
Permit History (1)
Applications (1)
Records & Logs
6 completion filings on record.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4343
- Max Depth
- 7,969 ft
- Drill Type
- Vertical
- County
- BORDEN
- District
- 8
- Operator
- JO MILL OIL COMPANY LLC
- Completed
- 1978-04-22
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