42-115-32466
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DAWSON County · District 8 · EXTEX OPERATING COMPANY · DEROEN (MISSISSIPPIAN)
Permits
2
Max Depth
7,900 ft
First Permit
1987-12-11
Latest Activity
1987-12-11
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-04-08
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: WINTERSHALL CORPORATION
Resolved via: production → EXTEX OPERATING 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
Injection / Disposal
DAWSON County disposal market →Permitted Volume
1,000 bbl/d
Max Pressure
1,000 psi
Injection Interval
3,710–4,720 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2025-08-01)
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 2,939 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 3,620 ft | -681 ft |
| SAN ANDRES | 4,028 ft | -1,089 ft |
| UPPER SPRABERRY (Spraberry) | 6,794 ft | -3,855 ft |
| LOWER SPRABERRY (Spraberry) | 7,364 ft | -4,425 ft |
| JO MILL SAND (Jo Mill) | 7,690 ft | -4,751 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 |
|---|---|
| 3,710–4,720 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 408 ft | 415 sx |
| 8.625" | 3,710 ft | 700 sx |
Permit History (2)
Applications (2)
Records & Logs
3 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 3
- Max Depth
- 7,900 ft
- Drill Type
- Vertical
- County
- DAWSON
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 2011-04-08
Operator
- Name
- EXTEX OPER CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-07)
- Cum Oil (all leases)
- 5,887,486 bbl
- Cum Gas (all leases)
- 10,031,045 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 117