42-503-41557
PRODUCINGEDWARDS 127
YOUNG County · District 9 · MAMMOTH OPERATING LLC · YOUNG COUNTY REGULAR
Permits
1
Max Depth
600 ft
First Permit
2008-06-24
Latest Activity
2008-06-24
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2008-07-29
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: MAMMOTH OPERATING LLC ≠ Permit: J-LYN OIL CO.
Resolved via: production → MAMMOTH OPERATING 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
1993-01
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 (1) Elevation 1,128 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GUNSIGHT | 432 ft | +696 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 |
|---|---|
| 434–451 ft | Perforated |
Casing (1)
| Size | Set Depth | Cement |
|---|---|---|
| 4.5" | 541 ft | 150 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 can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 25
- Max Depth
- 600 ft
- Drill Type
- Vertical
- County
- YOUNG
- District
- 9
- Operator
- MAMMOTH OPERATING LLC
- Completed
- 2008-07-29
Operator
- Name
- MAMMOTH OPER LLC
- Location
- SPICEWOOD
- P-5 Status
- Active (filed 2025-12-01)
- Cum Oil (all leases)
- 7,282 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O
- Total Permits
- 2