42-507-32075
Final CompletionWALKER RANCH
ZAVALA County · District 1 · J-W OPERATING CO. · CURTIS (OLMOS)
Permits
1
Max Depth
1,200 ft
First Permit
1984-09-04
Latest Activity
1984-09-04
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1990-12-10
Shut-In
—
Plugged
2003-07-02
EWA / Permit operator mismatch
Scheduling: J-W OPERATING CO. ≠ Permit: MATZINGER PETROLEUM CO
Resolved via: scheduling → J-W OPERATING CO.
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
2003-07
Operator History
originally filed by MATZINGER PETROLEUM CO — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (4)
CSV| Formation | Top Depth (MD) |
|---|---|
| WILCOX | 471 ft |
| NAVARRO | 587 ft |
| ESCONDIDO | 696 ft |
| OLMOS | 1,018 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗
Perforations (2)
| Interval | Type |
|---|---|
| 766–772 ft | Perforated |
| 1,018–1,026 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 6.625" | 180 ft | 40 sx |
| 2.875" | 1,139 ft | 175 sx |
Permit History (1)
Applications (2)
Records & Logs
3 completion filings on record.
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
- 1,200 ft
- Drill Type
- Vertical
- County
- ZAVALA
- District
- 1
- Operator
- J-W OPERATING CO.
- Completed
- 1990-12-10
Operator
- Name
- J-W OPER CO
- Location
- ADDISON
- P-5 Status
- Delinquent (filed 2019-07-30)
- Cum Oil (all leases)
- 936,249 bbl
- Cum Gas (all leases)
- 214,774,088 mcf
- Activities
- OPRS/G
- Total Permits
- 350