42-135-42667
PRODUCING HorizontalHEADLEE
ECTOR County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
2
Max Depth
12,000 ft
First Permit
2013-07-11
Latest Activity
2013-07-11
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-02-01
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: RSP PERMIAN, LLC
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
2010-02
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 (9) Elevation 2,972 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 3,112 ft | -140 ft |
| SEVEN RIVERS | 3,474 ft | -502 ft |
| QUEEN | 4,266 ft | -1,294 ft |
| GRAYBURG | 4,593 ft | -1,621 ft |
| SAN ANDRES | 4,910 ft | -1,938 ft |
| CLEARFORK (Clear Fork) | 7,474 ft | -4,502 ft |
| SPRABERRY | 8,299 ft | -5,327 ft |
| JO MILL | 8,569 ft | -5,597 ft |
| DEAN | 9,198 ft | -6,226 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 |
|---|---|
| 9,475–16,815 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,622 ft | 1,270 sx |
| 9.625" | 8,646 ft | 480 sx |
| 5.5" | 16,870 ft | 2,180 sx |
Permit History (2)
Applications (2)
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 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
- 3911H
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- ECTOR
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2014-02-01
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
- 4,538