42-003-38216
PRODUCINGBLANCO-FULLERTON S
ANDREWS County · District 8 · EXTEX OPERATING COMPANY · FULLERTON (SAN ANDRES)
Permits
1
Max Depth
4,800 ft
First Permit
1997-05-23
Latest Activity
1997-05-23
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2008-06-11
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: BLANCO OIL CO.
Resolved via: production → EXTEX OPERATING COMPANY
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
1997-03
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 (3) Elevation 3,315 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 1,755 ft | +1,560 ft |
| YATES | 2,882 ft | +433 ft |
| SAN ANDRES | 4,412 ft | -1,097 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 (2)
| Interval | Type |
|---|---|
| 4,601–4,628 ft | Perforated |
| 4,601–4,658 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,765 ft | 775 sx |
| 5.5" | 4,710 ft | 800 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 and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4S
- Max Depth
- 4,800 ft
- Drill Type
- Vertical
- County
- ANDREWS
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 2008-06-11
Operator
- Name
- EXTEX OPER CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-07)
- Cum Oil (all leases)
- 5,887,486 bbl
- Cum Gas (all leases)
- 10,031,045 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 117