42-033-30386
JO-MILL UNIT
BORDEN County · District 8 · JO MILL OIL COMPANY LLC · JO-MILL (SPRABERRY)
Permits
1
Max Depth
7,729 ft
First Permit
1977-06-10
Latest Activity
1977-06-10
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1978-02-06
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
6,600–7,172 ft
Injected (12mo)
150,526 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 2,605 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RED BED | 205 ft | +2,400 ft |
| YATES | 1,867 ft | +738 ft |
| SAN ANDRES | 4,098 ft | -1,493 ft |
| UPPER SPRABERRY (Spraberry) | 6,415 ft | -3,810 ft |
| SPRABERRY | 7,134 ft | -4,529 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 |
|---|---|
| 7,073–7,225 ft | Perforated |
| 7,134–7,172 ft | Perforated |
| ?–7,172 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 11.75" | 365 ft | 300 sx |
| 8.625" | 3,250 ft | 1,800 sx |
| 8.625" | 3,250 ft | 1,800 sx |
| 5.5" | 7,260 ft | 3,010 sx |
| 5.5" | — | — |
Permit History (1)
Applications (1)
Records & Logs
4 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
- 3544
- Max Depth
- 7,729 ft
- Drill Type
- Vertical
- County
- BORDEN
- District
- 8
- Operator
- JO MILL OIL COMPANY LLC
- Completed
- 1978-02-06
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