42-133-33831
Final CompletionZIEHR FRED
EASTLAND County · District 7 · PENN-TEX ENGINEERING · MANGUM SOUTH (U.MARBLE FALLS)
Permits
3
Max Depth
3,650 ft
First Permit
1982-04-21
Latest Activity
1994-05-12
Lifespan
12 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1982-10-21
Shut-In
—
Plugged
2026-02-02
EWA / Production operator mismatch
Scheduling: PENN-TEX ENGINEERING ≠ Production: RHYNE, J.V. (reported 2002-03)
EWA / Permit operator mismatch
Scheduling: PENN-TEX ENGINEERING ≠ Permit: WHITTINGTON, JAMES C., INC.
Resolved via: scheduling → PENN-TEX ENGINEERING
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
2026-02
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 (5) Elevation 1,546 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| STRAWN | 1,515 ft | +31 ft |
| MIDDLE STRAWN (Strawn) | 1,710 ft | -164 ft |
| CADDO | 2,892 ft | -1,346 ft |
| MARBLE FALLS | 3,128 ft | -1,582 ft |
| DUFFER | 3,553 ft | -2,007 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 |
|---|---|
| 1,711–1,716 ft | Perforated |
| 3,128–3,136 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 321 ft | 175 sx |
| 4.5" | 1,812 ft | 105 sx |
| 2.375" | 3,155 ft | — |
| 4.5" | 3,233 ft | 110 sx |
Permit History (3)
Applications (3)
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
- 3,650 ft
- Drill Type
- Vertical
- County
- EASTLAND
- District
- 7
- Operator
- PENN-TEX ENGINEERING
- Completed
- 1982-10-21
Operator
- Name
- PENN-TEX ENGINEERING
- Location
- DALLAS
- P-5 Status
- Inactive (filed 1984-08-06)
- Cum Oil (all leases)
- — bbl
- Cum Gas (all leases)
- — mcf
- Total Permits
- 10