42-427-32161
Final CompletionBLOCK/GUERRA
STARR County · District 4 · MORTIMER EXPLORATION COMPANY · ARROYO LOS OLMOS (GUERRA SAND)
Permits
1
Max Depth
6,000 ft
First Permit
1986-11-25
Latest Activity
1986-11-25
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1987-02-07
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MORTIMER EXPLORATION COMPANY ≠ Production: MORTIMER PRODUCTION COMPANY (reported 2026-04)
Resolved via: production → MORTIMER PRODUCTION 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
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 (2) Elevation 175 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YEGUA 12 (Yegua) | 4,060 ft | -3,885 ft |
| YEGUA 26 (Yegua) | 5,350 ft | -5,175 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 |
|---|---|
| 5,351–5,530 ft | Perforated |
| 5,351–5,533 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 762 ft | 450 sx |
| 7" | 4,420 ft | 248 sx |
| 4.5" | 5,718 ft | 150 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
- 1
- Max Depth
- 6,000 ft
- Drill Type
- Vertical
- County
- STARR
- District
- 4
- Operator
- MORTIMER EXPLORATION COMPANY
- Completed
- 1987-02-07
Operator
- Name
- MORTIMER EXPL CO
- Location
- SAN ANTONIO
- P-5 Status
- Inactive (filed 2003-06-26)
- Cum Oil (all leases)
- 336,561 bbl
- Cum Gas (all leases)
- 14,586,147 mcf
- Total Permits
- 108