42-389-32572
Final CompletionCOLLIER 52-14
REEVES County · District 8 · COG OPERATING LLC · WOLFBONE (TREND AREA)
Permits
2
Max Depth
20,000 ft
First Permit
2008-09-26
Latest Activity
2008-09-26
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2009-02-21
Shut-In
—
Plugged
2015-04-30
EWA / Production operator mismatch
Scheduling: COG OPERATING LLC ≠ Production: SHELL WESTERN E&P (reported 2014-12)
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: CHESAPEAKE OPERATING, INC.
Resolved via: scheduling → 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
2009-02
Last Production
2019-04
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (3) Elevation 2,767 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LAMAR | 5,170 ft | -2,403 ft |
| BSGL | 8,079 ft | -5,312 ft |
| WFMP (Wolfcamp) | 10,334 ft | -7,567 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 |
|---|---|
| 8,139–10,551 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,800 ft | 1,170 sx |
| 7.625" | 10,805 ft | 1,560 sx |
Permit History (2)
Applications (2)
Records & Logs
3 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
- 1
- Max Depth
- 20,000 ft
- Drill Type
- Vertical
- County
- REEVES
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2009-02-21
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