42-317-38649
SHUT INMABEE 239A
MARTIN County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
13,000 ft
First Permit
2013-05-02
Latest Activity
2013-05-02
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-05-21
Shut-In
—
Plugged
—
P-5 Org Status: X
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
2012-12
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 (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,421 ft | +1,477 ft |
| YATES | 2,975 ft | -77 ft |
| QUEEN | 4,043 ft | -1,145 ft |
| GRAYBURG | 4,660 ft | -1,762 ft |
| SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres) | 4,886 ft | -1,988 ft |
| SPRABERRY | 8,316 ft | -5,418 ft |
| DEAN | 9,583 ft | -6,685 ft |
| WOLFCAMP | 9,758 ft | -6,860 ft |
| CLINE | 10,616 ft | -7,718 ft |
| CISCO | — | — |
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 |
|---|---|
| 9,532–12,010 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 345 ft | 375 sx |
| 8.625" | 5,520 ft | 800 sx |
| 5.5" | 12,274 ft | 1,200 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 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
- 1311
- Max Depth
- 13,000 ft
- Drill Type
- Vertical
- County
- MARTIN
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2014-05-21
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