42-329-37357
SHUT INSPANISH TRAIL
MIDLAND County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2011-06-22
Latest Activity
2011-06-22
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-10-06
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: E.G.L. RESOURCES, INC.
Resolved via: production → COG 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
2008-06
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 (6) Elevation 2,870 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER SPRABERRY (Spraberry) | 8,172 ft | -5,302 ft |
| LOWER SPRABERRY (Spraberry) | 8,487 ft | -5,617 ft |
| DEAN | 9,318 ft | -6,448 ft |
| UPPER WOLFCAMP (Wolfcamp) | 9,630 ft | -6,760 ft |
| MIDDLE WOLFCAMP (Wolfcamp) | 9,880 ft | -7,010 ft |
| LOWER WOLFCAMP (Wolfcamp) | 10,260 ft | -7,390 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 (9)
| Interval | Type |
|---|---|
| 8,172–8,395 ft | Perforated |
| 8,487–8,685 ft | Perforated |
| 8,786–8,991 ft | Perforated |
| 9,318–9,463 ft | Perforated |
| 9,630–9,700 ft | Perforated |
| 9,880–9,900 ft | Perforated |
| 10,050–10,120 ft | Perforated |
| 10,260–10,330 ft | Perforated |
| 10,510–10,570 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 344 ft | 300 sx |
| 5.5" | 10,724 ft | 1,795 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing 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
- 4815
- Max Depth
- 12,000 ft
- Drill Type
- Vertical
- County
- MIDLAND
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2011-10-06
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 645,285,792 bbl
- Cum Gas (all leases)
- 305,183,488 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,550