42-135-42916
Final Completion HorizontalRATLIFF A
ECTOR County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
2
Max Depth
13,000 ft
First Permit
2014-02-13
Latest Activity
2014-02-13
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2014-05-22
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: RELIANCE ENERGY, INC.
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
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 2,999 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA BASE (Santa Rosa) | 1,304 ft | +1,695 ft |
| YATES | 3,151 ft | -152 ft |
| SEVEN RIVERS | 3,493 ft | -494 ft |
| QUEEN | 4,324 ft | -1,325 ft |
| GRAYBURG | 4,943 ft | -1,944 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 5,147 ft | -2,148 ft |
| GLORIETA | 6,237 ft | -3,238 ft |
| CLEARFORK (Clear Fork) | 7,397 ft | -4,398 ft |
| SPRABERRY | 8,243 ft | -5,244 ft |
| HOLT | — | — |
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 |
|---|---|
| 9,121–17,419 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,744 ft | 1,410 sx |
| 9.625" | 8,600 ft | 1,130 sx |
| 5.5" | 17,512 ft | 2,220 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 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
- 2904LS
- Max Depth
- 13,000 ft
- Drill Type
- Horizontal
- County
- ECTOR
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2014-05-22
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
- 4,560