42-371-37642
Final CompletionWEST STATE
PECOS County · District 8 · SANDRIDGE EXPL. AND PROD. LLC · ALLISON RANCH (WOLFCAMP)
Permits
4
Max Depth
12,000 ft
First Permit
2005-11-21
Latest Activity
2008-05-19
Lifespan
2 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2008-02-17
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SANDRIDGE EXPL. AND PROD. LLC ≠ Production: LONGFELLOW ENERGY, LP (reported 2022-03)
Resolved via: scheduling → SANDRIDGE EXPL. AND PROD. 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
2006-10
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 (4) Elevation 4,163 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BASE OF UPPER WOLFCAMP (Wolfcamp) | 1,745 ft | +2,418 ft |
| BASE UPPER WOLFCAMP (Wolfcamp) | 1,745 ft | +2,418 ft |
| WOLFCAMP LIMESTONE (Wolfcamp) | 3,725 ft | +438 ft |
| CABALLOS | 6,700 ft | -2,537 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 (4)
| Interval | Type |
|---|---|
| 3,020–3,151 ft | Perforated |
| 3,928–4,050 ft | Perforated |
| 4,158–4,277 ft | Perforated |
| 8,645–8,932 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,090 ft | 680 sx |
| 7" | 4,494 ft | 110 sx |
| 4.5" | 9,200 ft | 530 sx |
Permit History (4)
Applications (4)
Records & Logs
6 completion filings on record · 2 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
- 401W
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- PECOS
- District
- 8
- Operator
- SANDRIDGE EXPL. AND PROD. LLC
- Completed
- 2008-02-17
Operator
- Location
- OKLAHOMA CI, TY
- P-5 Status
- Active (filed 2025-09-10)
- Cum Oil (all leases)
- 34,273,053 bbl
- Cum Gas (all leases)
- 570,818,154 mcf
- Activities
- OPRS/O
- Total Permits
- 3,454