42-135-43631
Final Completion HorizontalPARKS BELL
ECTOR County · District 8 · COG OPERATING LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
12,000 ft
First Permit
2018-10-10
Latest Activity
2018-10-10
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2019-03-19
Shut-In
—
Plugged
—
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
2008-06
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 2,988 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA BASE (Santa Rosa) | 1,150 ft | +1,838 ft |
| YATES | 3,137 ft | -149 ft |
| SEVEN RIVERS | 3,381 ft | -393 ft |
| QUEEN | 4,056 ft | -1,068 ft |
| GRAYBURG | 4,485 ft | -1,497 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 5,119 ft | -2,131 ft |
| GLORIETA | 5,705 ft | -2,717 ft |
| HOLT | 6,999 ft | -4,011 ft |
| CLEARFORK (Clear Fork) | 7,497 ft | -4,509 ft |
| TUBB | 7,961 ft | -4,973 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 |
|---|---|
| 9,115–16,702 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,659 ft | 1,175 sx |
| 9.625" | 8,276 ft | 690 sx |
| 5.5" | 16,830 ft | 1,735 sx |
Permit History (1)
Applications (1)
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
- 4031H
- Max Depth
- 12,000 ft
- Drill Type
- Horizontal
- County
- ECTOR
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2019-03-19
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