42-103-33593
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CRANE County · District 8 · EXTEX OPERATING COMPANY · SAND HILLS (TUBB)
Permits
1
Max Depth
4,850 ft
First Permit
1984-12-28
Latest Activity
1984-12-28
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1985-01-29
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Production operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Production: ENDEAVOR ENERGY RESOURCES L.P. (reported 2020-02)
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: TRANSAMERICAN ENERGY, LTD.
Resolved via: scheduling → 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
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 (2) Elevation 2,569 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| JUDKINS | 3,020 ft | -451 ft |
| TUBB | 4,551 ft | -1,982 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 |
|---|---|
| 4,597–4,658 ft | Perforated |
| ?–4,658 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 850 ft | 425 sx |
| 4.5" | 4,850 ft | 1,400 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 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
- 310
- Max Depth
- 4,850 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 1985-01-29
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