42-507-33154
PRODUCING HorizontalROBERT WALKER UNIT ZAV B
ZAVALA County · District 1 · EXCO OPERATING COMPANY LP · BRISCOE RANCH (EAGLEFORD)
Permits
2
Max Depth
11,000 ft
First Permit
2014-06-13
Latest Activity
2014-06-13
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-09-16
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2014-07
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (11) Elevation 726 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ESCONDIDO | 2,700 ft | -1,974 ft |
| ESCONDIDO - DISPOSAL (Escondido) | 2,700 ft | -1,974 ft |
| OLMOS | 4,099 ft | -3,373 ft |
| ANACACHO | 5,185 ft | -4,459 ft |
| AUSTIN CHALK | 5,630 ft | -4,904 ft |
| EAGLE FORD | 6,092 ft | -5,366 ft |
| BUDA | 6,512 ft | -5,786 ft |
| DEL RIO | 6,643 ft | -5,917 ft |
| GEORGETOWN | 6,755 ft | -6,029 ft |
| GLEN ROSE | 8,202 ft | -7,476 ft |
| PEARSALL | 9,751 ft | -9,025 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 |
|---|---|
| 7,086–13,903 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 2,745 ft | 790 sx |
| 5.5" | 13,999 ft | 2,190 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 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
- 1H
- Max Depth
- 11,000 ft
- Drill Type
- Horizontal
- County
- ZAVALA
- District
- 1
- Operator
- EXCO OPERATING COMPANY LP
- Completed
- 2014-09-16
Operator
- Name
- EXCO OPER CO, LP
- Location
- DALLAS
- P-5 Status
- Active (filed 2025-08-22)
- Cum Oil (all leases)
- 68,406,744 bbl
- Cum Gas (all leases)
- 618,508,398 mcf
- Activities
- G/PUR, OPRS/G, OPRS/O
- Total Permits
- 506