42-135-43534
PRODUCING HorizontalRATLIFF K UNIT
ECTOR County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
9,000 ft
First Permit
2017-08-04
Latest Activity
2017-08-04
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2018-05-01
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
2018-04
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 (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA BASE (Santa Rosa) | 1,350 ft | +1,602 ft |
| YATES | 2,000 ft | +952 ft |
| GRAYBURG | 3,550 ft | -598 ft |
| SEVEN RIVERS | 3,970 ft | -1,018 ft |
| QUEEN | 4,256 ft | -1,304 ft |
| HOLT | 5,000 ft | -2,048 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 5,075 ft | -2,123 ft |
| GLORIETA | 5,584 ft | -2,632 ft |
| TUBB | 6,100 ft | -3,148 ft |
| CLEARFORK (Clear Fork) | 7,360 ft | -4,408 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 ↗
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 (1)
| Interval | Type |
|---|---|
| 8,753–18,603 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,703 ft | 1,210 sx |
| 9.625" | 7,950 ft | 600 sx |
| 5.5" | 18,700 ft | 2,120 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.
Well Details
- Well Number
- 4406MH
- Max Depth
- 9,000 ft
- Drill Type
- Horizontal
- County
- ECTOR
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2018-05-01
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