42-461-41593
PRODUCING HorizontalNEAL RANCH 41 UNIT
UPTON County · District 7 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
2
Max Depth
12,000 ft
First Permit
2020-11-23
Latest Activity
2020-11-23
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2021-06-30
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
2021-01
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 (13) Elevation 2,814 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,676 ft | +138 ft |
| YATES | 2,683 ft | +131 ft |
| GRAYBURG | 4,145 ft | -1,331 ft |
| GRAYBURG | 4,354 ft | -1,540 ft |
| SAN ANDRES - SALTWATER FLOW (San Andres) | 4,849 ft | -2,035 ft |
| SAN ANDRES - SALTWATER FLOW (San Andres) | 4,856 ft | -2,042 ft |
| SPRABERRY | 7,744 ft | -4,930 ft |
| SPRABERRY | 7,758 ft | -4,944 ft |
| DEVONIAN | — | — |
| ELLENBURGER | — | — |
| FUSSELMAN | — | — |
| STRAWN | — | — |
| WOLFCAMP | — | — |
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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (2)
| Interval | Type |
|---|---|
| 9,160–21,694 ft | Perforated |
| 9,160–21,696 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 500 ft | 550 sx |
| 13.375" | 512 ft | 550 sx |
| 9.625" | 8,282 ft | 2,590 sx |
| 9.625" | 8,286 ft | 700 sx |
| 5.5" | 21,786 ft | 2,800 sx |
| 5.5" | 21,804 ft | 2,800 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 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.
Well Details
- Well Number
- 4101LH
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- UPTON
- District
- 7
- Operator
- COG OPERATING LLC
- Completed
- 2021-06-30
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
- 4,538