42-263-31808
PRODUCINGCATES
KENT County · District 8 · EXTEX OPERATING COMPANY · LONG-HALL (TANNEHILL)
Permits
2
Max Depth
4,999 ft
First Permit
2007-12-11
Latest Activity
2007-12-11
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2008-01-28
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: CHOLLA PETROLEUM, INC.
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
2008-01
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 2,138 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| B/STOCKWETHER | 4,239 ft | -2,101 ft |
| T/SADDLE CREEK | 4,333 ft | -2,195 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 |
|---|---|
| 4,274–4,280 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 318 ft | 350 sx |
| 8.625" | 1,225 ft | 150 sx |
| 5.5" | 4,399 ft | 300 sx |
Permit History (2)
Applications (2)
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 can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 1
- Max Depth
- 4,999 ft
- Drill Type
- Vertical
- County
- KENT
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 2008-01-28
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