42-389-32772
Final CompletionBIG CHIEF
REEVES County · District 8 · COG OPERATING LLC · WOLFBONE (TREND AREA)
Permits
6
Max Depth
14,500 ft
First Permit
2011-03-01
Latest Activity
2015-10-27
Lifespan
5 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2011-06-03
Shut-In
—
Plugged
2020-01-27
EWA / Production operator mismatch
Scheduling: COG OPERATING LLC ≠ Production: SCOUT ENERGY MANAGEMENT LLC (reported 2025-12)
Resolved via: production → SCOUT ENERGY MANAGEMENT LLC
Production Summary
Cum Oil
— bbl
Cum Gas
— mcf
First Production
2011-06
Last Production
2026-03
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.
Permit History (6)
BIG CHIEF · 8,180 ft
2015-10-27
Spud 2014-04-25
BIG CHIEF · 7,340 ft
2013-09-10
BIG CHIEF · 14,500 ft
2013-09-10
BIG CHIEF · 12,000 ft
2013-09-10
Spud 2013-04-02
BIG CHIEF '148' · 14,500 ft
2011-03-01
Spud 2011-04-18
BIG CHIEF "148" · 13,500 ft
2011-03-01
Permit Applications (6)
Well Details
- Well Number
- 4801
- Max Depth
- 14,500 ft
- Drill Type
- Vertical
- County
- REEVES
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2011-06-03
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- Y (filed 2025-05-02)
- Cum Oil (all leases)
- 627,668,492 bbl
- Cum Gas (all leases)
- 303,100,933 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,469