42-409-31893
Final Completion HorizontalWELDER M.S.
SAN PATRICIO County · District 4 · MOBIL PRODUCING TX. & N.M. INC. · PORTILLA (8500 SAND)
Permits
8
Max Depth
9,100 ft
First Permit
1984-02-06
Latest Activity
1997-04-15
Lifespan
13 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1984-04-16
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MOBIL PRODUCING TX. & N.M. INC. ≠ Production: ALLEGIANT RESOURCES, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: MOBIL PRODUCING TX. & N.M. INC. ≠ Permit: ABRAXAS PETROLEUM CORPORATION
Resolved via: production → ALLEGIANT RESOURCES, 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
10,000 bbl/d
Max Pressure
1,977 psi
Injection Interval
3,955–4,968 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 (4) Elevation 17 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| 8100 SAND | 8,082 ft | -8,065 ft |
| PORTILLA (8100 SD.) | 8,082 ft | -8,065 ft |
| 8500 SAND | 8,532 ft | -8,515 ft |
| PORTILLA (8500 SD.) | 8,532 ft | -8,515 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 (11)
| Interval | Type |
|---|---|
| 7,344–7,352 ft | Perforated |
| 7,348–7,356 ft | Perforated |
| 7,545–7,745 ft | Perforated |
| 7,698–7,703 ft | Perforated |
| 8,084–8,103 ft | Perforated |
| 8,092–8,103 ft | Perforated |
| 8,379–8,384 ft | Perforated |
| 8,389–8,393 ft | Perforated |
| 8,404–8,412 ft | Perforated |
| 8,424–8,431 ft | Perforated |
| 8,532–8,542 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,238 ft | 596 sx |
| 10.75" | 1,238 ft | — |
| 7.625" | 8,600 ft | 1,180 sx |
| 7.625" | 8,600 ft | — |
| 7" | 8,600 ft | — |
Permit History (8)
WELDER, MINNIE S. · 8,600 ft
1997-04-15
Spud 1997-04-15
WELDER, MINNIE S. · 8,600 ft
1993-01-05
Spud 1993-03-08
WELDER, MINNIE S. · 8,600 ft
1991-04-02
WELDER, MINNIE S. · 8,600 ft
1991-04-02
Spud 1991-04-24
WELDER, MINNIE S. · 8,600 ft
1990-05-22
WELDER, MINNIE S. · 8,600 ft
1986-04-28
WELDER, MINNIE S. · 9,100 ft
1984-04-30
WELDER, MINNIE S. · 9,100 ft
1984-02-06
Applications (8)
Records & Logs
17 completion filings on record · 7 with log images at RRC.
+11 more filings
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
- 66H
- Max Depth
- 9,100 ft
- Drill Type
- Horizontal
- County
- SAN PATRICIO
- District
- 4
- Operator
- MOBIL PRODUCING TX. & N.M. INC.
- Completed
- 1984-04-16
Operator
- Name
- SUPERIOR OIL CO, THE
- Location
- SPRING
- P-5 Status
- Active (filed 2025-06-04)
- Cum Oil (all leases)
- 181,898,111 bbl
- Cum Gas (all leases)
- 1,950,074,148 mcf
- Activities
- CSGD/G, GTHS/C, GTHS/G
- Total Permits
- 6,763