42-329-39118
SHUT IN HorizontalHEADLEE
MIDLAND County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2014-01-27
Latest Activity
2014-01-27
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-06-04
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 (10) Elevation 2,972 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 3,117 ft | -145 ft |
| SEVEN RIVERS | 3,425 ft | -453 ft |
| QUEEN | 4,232 ft | -1,260 ft |
| GRAYBURG | 4,692 ft | -1,720 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,855 ft | -1,883 ft |
| CLEARFORK (Clear Fork) | 7,544 ft | -4,572 ft |
| SPRABERRY | 8,383 ft | -5,411 ft |
| SPRABERRY UPPER-DEAN (Spraberry) | 8,883 ft | -5,911 ft |
| GLORIETA | — | — |
| SANTA ROSA | — | — |
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 |
|---|---|
| 9,699–14,791 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 417 ft | 425 sx |
| 9.625" | 8,617 ft | 820 sx |
| 5.5" | 14,892 ft | 1,685 sx |
Permit History (1)
Applications (1)
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 can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 3505LS
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2014-06-04
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