42-033-31286
PRODUCINGJO-MILL UNIT
BORDEN County · District 8 · JO MILL OIL COMPANY LLC · JO-MILL (SPRABERRY)
Permits
1
Max Depth
7,720 ft
First Permit
1987-04-23
Latest Activity
1987-04-23
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1996-04-27
Shut-In
—
Plugged
—
P-5 Org Status: X
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
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 (8) Elevation 2,788 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES | 3,300 ft | -512 ft |
| UPPER SPRABERRY (Spraberry) | 6,700 ft | -3,912 ft |
| LOWER SPRABERRY 1 (Spraberry) | 7,510 ft | -4,722 ft |
| LOWER SPRABERRY ZONE 1 (Spraberry) | 7,510 ft | -4,722 ft |
| LOWER SPRABERRY (Spraberry) | 7,560 ft | -4,772 ft |
| LOWER SPRABERRY ZONE 2 (Spraberry) | 7,560 ft | -4,772 ft |
| LO SPRABERRY 3 | 7,640 ft | -4,852 ft |
| LOWER SPRABERRY ZONE 3 (Spraberry) | 7,640 ft | -4,852 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 |
|---|---|
| 6,830–6,926 ft | Perforated |
| 7,050–7,070 ft | Perforated |
| 7,638–7,690 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 11.75" | 390 ft | 400 sx |
| 8.625" | 3,975 ft | 1,925 sx |
| 5.5" | 7,750 ft | 970 sx |
Permit History (1)
Applications (1)
Records & Logs
3 completion filings on record · 1 with log images at RRC.
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
- 8141
- Max Depth
- 7,720 ft
- Drill Type
- Vertical
- County
- BORDEN
- District
- 8
- Operator
- JO MILL OIL COMPANY LLC
- Completed
- 1996-04-27
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