Permits
4
Max Depth
9,200 ft
First Permit
1985-07-31
Latest Activity
1995-02-14
Lifespan
10 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
2012-12
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (4) Elevation 185 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| F-5 | 7,800 ft | -7,615 ft |
| F-6 | 7,850 ft | -7,665 ft |
| F-8 | 8,114 ft | -7,929 ft |
| F-12 | 8,498 ft | -8,313 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 (5)
| Interval | Type |
|---|---|
| 7,699–7,719 ft | Perforated |
| 7,800–7,844 ft | Perforated |
| 7,928–7,940 ft | Perforated |
| 7,939–7,969 ft | Perforated |
| 8,114–8,180 ft | Perforated |
Casing (7)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 60 ft | — |
| 9.625" | 1,852 ft | 560 sx |
| 9.625" | 1,852 ft | — |
| 2.875" | 8,648 ft | 2,417 sx |
| 2.875" | 8,648 ft | — |
| 2.875" | 8,650 ft | 2,417 sx |
| 2.875" | 8,650 ft | — |
Permit History (4)
Applications (5)
Records & Logs
7 completion filings on record · 4 with log images at RRC.
+1 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
- 21D
- Max Depth
- 9,200 ft
- Drill Type
- Vertical
- County
- HIDALGO
- District
- 4
- Operator
- MOBIL PRODUCING TX. & N.M. INC.
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