42-461-40240
PRODUCING HorizontalKAREN UNIT
UPTON County · District 7 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
2
Max Depth
10,000 ft
First Permit
2015-11-05
Latest Activity
2015-11-05
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2016-08-09
Shut-In
—
Plugged
—
P-5 Org Status: X
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
2016-08
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 (9) Elevation 2,779 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,560 ft | +219 ft |
| GRAYBURG | 4,618 ft | -1,839 ft |
| SAN ANDRES - SALTWATER FLOW (San Andres) | 4,699 ft | -1,920 ft |
| SPRABERRY | 7,387 ft | -4,608 ft |
| WOLFCAMP | 8,770 ft | -5,991 ft |
| DEVONIAN | — | — |
| ELLENBURGER | — | — |
| FUSSELMAN | — | — |
| STRAWN | — | — |
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 |
|---|---|
| 9,590–19,376 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 523 ft | 520 sx |
| 9.625" | 8,807 ft | 770 sx |
| 5.5" | 19,473 ft | 3,000 sx |
Permit History (2)
Applications (2)
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
- 5121BH
- Max Depth
- 10,000 ft
- Drill Type
- Horizontal
- County
- UPTON
- District
- 7
- Operator
- COG OPERATING LLC
- Completed
- 2016-08-09
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
- 4,541