42-329-41648
HorizontalSPANISH TRAIL 3-10 HZ UNIT
MIDLAND County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
2
Max Depth
12,000 ft
First Permit
2017-05-12
Latest Activity
2017-05-12
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2018-02-10
Shut-In
—
Plugged
—
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
2016-12
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 2,898 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,818 ft | +1,080 ft |
| YATES | 2,925 ft | -27 ft |
| SEVEN RIVERS | 3,825 ft | -927 ft |
| QUEEN | 3,970 ft | -1,072 ft |
| GRAYBURG | 4,522 ft | -1,624 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,689 ft | -1,791 ft |
| GLORIETA | 5,957 ft | -3,059 ft |
| CLEARFORK (Clear Fork) | 7,225 ft | -4,327 ft |
| SPRABERRY | 8,102 ft | -5,204 ft |
| SPRABERRY UPPER-DEAN (Spraberry) | 8,865 ft | -5,967 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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 10,006–16,542 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,580 ft | 1,270 sx |
| 9.625" | 9,115 ft | 670 sx |
| 5.5" | 16,635 ft | 1,440 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 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.
Well Details
- Well Number
- 3511H
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2018-02-10
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