42-329-40241
PRODUCING HorizontalSARAH ANN
MIDLAND County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2015-05-11
Latest Activity
2015-05-11
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2016-04-03
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 2,952 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,010 ft | +1,942 ft |
| YATES | 3,024 ft | -72 ft |
| SEVEN RIVERS | 3,417 ft | -465 ft |
| QUEEN | 4,188 ft | -1,236 ft |
| GRAYBURG | 4,454 ft | -1,502 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,846 ft | -1,894 ft |
| CLEARFORK (Clear Fork) | 7,454 ft | -4,502 ft |
| SPRABERRY | 8,769 ft | -5,817 ft |
| GLORIETA | — | — |
| SPRABERRY UPPER-DEAN (Spraberry) | — | — |
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 |
|---|---|
| 9,680–14,038 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,617 ft | 1,000 sx |
| 9.625" | 8,685 ft | 740 sx |
| 5.5" | 14,102 ft | 1,050 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
- 3818LS
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2016-04-03
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