42-317-34246
Final CompletionCOX 9
MARTIN County · District 8 · ENDEAVOR ENERGY RESOURCES L.P. · TARZAN (DEAN-WOLFCAMP)
Permits
2
Max Depth
11,000 ft
First Permit
1999-11-23
Latest Activity
2000-06-09
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2000-02-27
Shut-In
—
Plugged
2022-11-03
EWA / Production operator mismatch
Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Production: DIAMONDBACK E&P LLC (reported 2025-01)
EWA / Permit operator mismatch
Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Permit: STEPHENS, AUTRY C.
Resolved via: scheduling → ENDEAVOR ENERGY RESOURCES L.P.
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
2000-03
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 (5) Elevation 2,839 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER SPRABERRY (Spraberry) | 7,838 ft | -4,999 ft |
| DEAN | 9,173 ft | -6,334 ft |
| LOWER SPRABERRY (Spraberry) | 9,173 ft | -6,334 ft |
| WOLFCAMP | 9,402 ft | -6,563 ft |
| STRAWN | 10,814 ft | -7,975 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 |
|---|---|
| 7,860–9,974 ft | Perforated |
| 10,814–11,083 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 12.75" | 370 ft | 220 sx |
| 8.625" | 5,080 ft | 425 sx |
| 4.5" | 11,165 ft | 1,270 sx |
Permit History (2)
Applications (3)
Records & Logs
4 completion filings on record · 3 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
- 1
- Max Depth
- 11,000 ft
- Drill Type
- Vertical
- County
- MARTIN
- District
- 8
- Operator
- ENDEAVOR ENERGY RESOURCES L.P.
- Completed
- 2000-02-27
Operator
- Location
- MIDLAND
- P-5 Status
- Active (filed 2026-06-12)
- Cum Oil (all leases)
- 507,205,629 bbl
- Cum Gas (all leases)
- 70,424,421 mcf
- Total Permits
- 6,190