42-389-35719
Final Completion HorizontalBRASS MONKEY STATE UNIT
REEVES County · District 8 · U.S. ENERGY DEVELOPMENT CORP · PHANTOM (WOLFCAMP)
Permits
1
Max Depth
11,000 ft
First Permit
2017-04-07
Latest Activity
2017-04-07
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2017-12-20
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: U.S. ENERGY DEVELOPMENT CORP ≠ Permit: COG OPERATING LLC
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
2017-11
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 (10) Elevation 2,587 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| FORD-DELAWARE (Delaware) | 2,500 ft | +87 ft |
| CASTILLE (Castile) | 2,800 ft | -213 ft |
| DELAWARE | 4,921 ft | -2,334 ft |
| BELL CANYON | 4,964 ft | -2,377 ft |
| CHERRY CANYON | 5,879 ft | -3,292 ft |
| DELAWARE CONSOLIDATED GAS (Delaware) | 6,500 ft | -3,913 ft |
| BONE SPRINGS (Bone Spring) | 8,075 ft | -5,488 ft |
| WOLFCAMP | 10,619 ft | -8,032 ft |
| PENNSYLVANIAN | — | — |
| PERMIAN (Permian (undifferentiated)) | — | — |
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 |
|---|---|
| 10,718–20,384 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 2,136 ft | 2,130 sx |
| 9.625" | 10,051 ft | 2,050 sx |
| 5.5" | 20,563 ft | 4,345 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
- 852H
- Max Depth
- 11,000 ft
- Drill Type
- Horizontal
- County
- REEVES
- District
- 8
- Operator
- U.S. ENERGY DEVELOPMENT CORP
- Completed
- 2017-12-20
Operator
- Name
- U.S. ENGY DEV CORP
- Location
- FORT WORTH
- P-5 Status
- Active (filed 2026-02-18)
- Cum Oil (all leases)
- 14,882,303 bbl
- Cum Gas (all leases)
- 30,585,425 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 208