42-409-30093
Final CompletionWELDER J. F. UNIT
SAN PATRICIO County · District 4 · SOUTHERN BAY OPERATING L.L.C. · ODEM (5200 FRIO MIDDLE S)
Permits
1
Max Depth
6,808 ft
First Permit
1997-09-30
Latest Activity
1997-09-30
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1995-12-01
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SOUTHERN BAY OPERATING L.L.C. ≠ Production: 84 ENERGY LLC (reported 2025-08)
EWA / Permit operator mismatch
Scheduling: SOUTHERN BAY OPERATING L.L.C. ≠ Permit: SMITH PRODUCTION INC.
Resolved via: scheduling → SOUTHERN BAY OPERATING L.L.C.
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
1,200 bbl/d
Max Pressure
1,200 psi
Injection Interval
5,274–5,284 ft
Injected (12mo)
—
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
No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.
Perforations (3)
| Interval | Type |
|---|---|
| 5,274–5,278 ft | Perforated |
| 5,510–5,752 ft | Perforated |
| ?–5,278 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 525 ft | 450 sx |
| 4.5" | 6,808 ft | 1,000 sx |
Permit History (1)
Applications (1)
Records & Logs
4 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
- C 21
- Max Depth
- 6,808 ft
- Drill Type
- Vertical
- County
- SAN PATRICIO
- District
- 4
- Operator
- SOUTHERN BAY OPERATING L.L.C.
- Completed
- 1995-12-01
Operator
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2013-05-16)
- Cum Oil (all leases)
- 3,193,428 bbl
- Cum Gas (all leases)
- 78,662,035 mcf
- Total Permits
- 96