42-389-32830
Final CompletionDUBYA STATE 12
REEVES County · District 8 · COG OPERATING LLC · WOLFBONE (TREND AREA)
Permits
2
Max Depth
13,500 ft
First Permit
2011-05-05
Latest Activity
2011-05-05
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2012-03-14
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: COG OPERATING LLC ≠ Production: U.S. ENERGY DEVELOPMENT CORP (reported 2026-04)
Resolved via: production → U.S. ENERGY DEVELOPMENT CORP
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
2011-03
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 (3) Elevation 2,686 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DELAWARE | 5,109 ft | -2,423 ft |
| BONE SPRING | 8,155 ft | -5,469 ft |
| WOLFCAMP | 10,630 ft | -7,944 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 |
|---|---|
| 9,210–11,349 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,433 ft | 1,150 sx |
| 9.625" | 4,973 ft | 1,250 sx |
| 5.5" | 11,606 ft | 2,275 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
- 8
- Max Depth
- 13,500 ft
- Drill Type
- Vertical
- County
- REEVES
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2012-03-14
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