42-329-39447
PRODUCING HorizontalSARAH ANN
MIDLAND County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2014-07-16
Latest Activity
2014-07-16
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2015-08-03
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
2011-04
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 2,942 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,100 ft | +1,842 ft |
| YATES | 3,067 ft | -125 ft |
| SEVEN RIVERS | 3,363 ft | -421 ft |
| QUEEN | 4,209 ft | -1,267 ft |
| GRAYBURG | 4,727 ft | -1,785 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,918 ft | -1,976 ft |
| CLEARFORK (Clear Fork) | 7,455 ft | -4,513 ft |
| SPRABERRY | 8,325 ft | -5,383 ft |
| SPRABERRY UPPER-DEAN (Spraberry) | 8,973 ft | -6,031 ft |
| GLORIETA | — | — |
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 |
|---|---|
| 9,330–14,065 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,585 ft | 1,150 sx |
| 9.625" | 8,704 ft | 755 sx |
| 5.5" | 14,108 ft | 1,045 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
- 3813LS
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2015-08-03
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