42-371-37819
PRODUCINGWEST RANCH SOUTH 4
PECOS County · District 8 · LONGFELLOW ENERGY LP · PINON (OVERTHRUST)
Permits
1
Max Depth
9,000 ft
First Permit
2006-11-06
Latest Activity
2006-11-06
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2007-05-03
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: LONGFELLOW ENERGY LP ≠ Permit: SANDRIDGE ENERGY, INC.
Resolved via: scheduling → LONGFELLOW ENERGY LP
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
2007-05
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 4,258 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| TESNUS SAND III | 5,960 ft | -1,702 ft |
| 1ST CABALLOS | 6,232 ft | -1,974 ft |
| 2ND CABALLOS | 6,488 ft | -2,230 ft |
| MARAVILLAS | 7,260 ft | -3,002 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 |
|---|---|
| 6,232–6,553 ft | Perforated |
| 7,030–7,272 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,058 ft | 1,200 sx |
| 9.625" | 5,520 ft | 1,100 sx |
| 5.5" | 7,500 ft | 500 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
- 501
- Max Depth
- 9,000 ft
- Drill Type
- Vertical
- County
- PECOS
- District
- 8
- Operator
- LONGFELLOW ENERGY LP
- Completed
- 2007-05-03
Operator
- Name
- LONGFELLOW ENGY, LP
- Location
- DALLAS
- P-5 Status
- X (filed 2026-03-26)
- Cum Oil (all leases)
- 402,477 bbl
- Cum Gas (all leases)
- 35,171,464 mcf
- Activities
- GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 36