42-461-37357
PRODUCINGMADELINE KATE
UPTON County · District 7 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
11,000 ft
First Permit
2011-04-19
Latest Activity
2011-04-19
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2011-08-29
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
2008-07
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 (5) Elevation 2,779 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SPRABERRY | 7,290 ft | -4,511 ft |
| DEAN | 8,635 ft | -5,856 ft |
| WOLFCAMP | 8,770 ft | -5,991 ft |
| LOWER WOLFCAMP (Wolfcamp) | 9,110 ft | -6,331 ft |
| BASE WOLFCAMP (Wolfcamp) | 9,490 ft | -6,711 ft |
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 |
|---|---|
| 8,050–10,410 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 763 ft | 430 sx |
| 5.5" | 10,610 ft | 720 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
- 4020
- Max Depth
- 11,000 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- COG OPERATING LLC
- Completed
- 2011-08-29
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
- 4,547