42-317-45370
Final Completion HorizontalHERA 56-46 B
MARTIN County · District 8 · ENDEAVOR ENERGY RESOURCES L.P. · SPRABERRY (TREND AREA)
Permits
1
Max Depth
11,000 ft
First Permit
2023-07-21
Latest Activity
2023-07-21
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2023-10-08
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Production: DIAMONDBACK E&P LLC (reported 2026-04)
Resolved via: production → DIAMONDBACK E&P LLC
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
2023-09
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (20) Elevation 2,589 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 880 ft | +1,709 ft |
| YATES | 2,027 ft | +562 ft |
| YATES | 2,136 ft | +453 ft |
| QUEEN | 2,845 ft | -256 ft |
| QUEEN | 2,938 ft | -349 ft |
| GRAYBURG | 3,147 ft | -558 ft |
| GRAYBURG | 3,354 ft | -765 ft |
| SAN ANDRES | 3,695 ft | -1,106 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 3,695 ft | -1,106 ft |
| SAN ANDRES | 3,884 ft | -1,295 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 3,884 ft | -1,295 ft |
| CLEARFORK (Clear Fork) | 5,260 ft | -2,671 ft |
| SPRABERRY | 6,809 ft | -4,220 ft |
| SPRABERRY | 6,886 ft | -4,297 ft |
| DEAN | 8,165 ft | -5,576 ft |
| DEAN | 8,178 ft | -5,589 ft |
| WOLFCAMP | 8,367 ft | -5,778 ft |
| WOLFCAMP | 8,382 ft | -5,793 ft |
| CISCO | — | — |
| PENNSYLVANIAN | — | — |
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 |
|---|---|
| 8,933–24,520 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,199 ft | 865 sx |
| 9.625" | 8,016 ft | 965 sx |
| 5.5" | 24,550 ft | 3,260 sx |
Permit History (1)
Applications (1)
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 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
- 221
- Max Depth
- 11,000 ft
- Drill Type
- Horizontal
- County
- MARTIN
- District
- 8
- Operator
- ENDEAVOR ENERGY RESOURCES L.P.
- Completed
- 2023-10-08
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