42-507-32392
Final Completion HorizontalROBERTSON-LASITER UNIT
ZAVALA County · District 1 · TEXAS AMERICAN RESOURCES COMPANY · PEARSALL (AUSTIN CHALK)
Permits
1
Max Depth
9,700 ft
First Permit
1990-12-04
Latest Activity
1990-12-04
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1991-02-20
Shut-In
—
Plugged
2017-02-27
EWA / Permit operator mismatch
Scheduling: TEXAS AMERICAN RESOURCES COMPANY ≠ Permit: ORYX ENERGY COMPANY
Resolved via: scheduling → TEXAS AMERICAN RESOURCES 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
2017-05
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 (6) Elevation 596 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIDWAY | 2,668 ft | -2,072 ft |
| SAN MIGUEL | 5,178 ft | -4,582 ft |
| ANACACHO | 5,718 ft | -5,122 ft |
| AUSTIN CHALK | 6,049 ft | -5,453 ft |
| LOWER CHALK | 6,439 ft | -5,843 ft |
| BASE OF CHALK | 6,643 ft | -6,047 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 (1)
| Interval | Type |
|---|---|
| 6,015–9,315 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 897 ft | 740 sx |
| 9.625" | 6,015 ft | 500 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 9,700 ft
- Drill Type
- Horizontal
- County
- ZAVALA
- District
- 1
- Operator
- TEXAS AMERICAN RESOURCES COMPANY
- Completed
- 1991-02-20
Operator
- Location
- AUSTIN
- P-5 Status
- Active (filed 2025-12-19)
- Cum Oil (all leases)
- 25,009,402 bbl
- Cum Gas (all leases)
- 17,947,951 mcf
- Activities
- CSGD/G, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 545