42-291-32551
Final CompletionHIRSCH ESTATE
LIBERTY County · District 3 · RIM OPERATING INC. · COTTONWOOD
Permits
2
Max Depth
8,150 ft
First Permit
2004-09-15
Latest Activity
2006-06-23
Lifespan
2 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2006-01-27
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
1993-01
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 (15) Elevation 41 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BASE OF MIOCENE (Miocene (undifferentiated)) | 5,889 ft | -5,848 ft |
| FRIO | 6,296 ft | -6,255 ft |
| FRIO TOP (Frio) | 6,296 ft | -6,255 ft |
| COTTONWOOD "A" | 7,551 ft | -7,510 ft |
| COTTONWOOD A | 7,551 ft | -7,510 ft |
| COTTONWOOD "C" | 7,695 ft | -7,654 ft |
| COTTONWOOD C | 7,695 ft | -7,654 ft |
| 7725' FRIO | 7,716 ft | -7,675 ft |
| 7725' FRIO (STRAY) | 7,716 ft | -7,675 ft |
| 2ND FRIO (Frio) | 7,747 ft | -7,706 ft |
| NODISARIA | 7,750 ft | -7,709 ft |
| 7750 FRIO | 7,759 ft | -7,718 ft |
| FRIO | 7,759 ft | -7,718 ft |
| NODISARIA 7750' FRIO | 7,759 ft | -7,718 ft |
| NODISARIA-7750' FRIO | 7,759 ft | -7,718 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 (3)
| Interval | Type |
|---|---|
| 7,696–7,703 ft | Perforated |
| 7,716–7,724 ft | Perforated |
| 7,747–7,750 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,376 ft | 509 sx |
| 9.625" | 1,378 ft | 509 sx |
| 5.5" | 8,124 ft | 450 sx |
| 5.5" | — | 450 sx |
Permit History (2)
Applications (2)
Records & Logs
6 completion filings on record · 2 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 4B
- Max Depth
- 8,150 ft
- Drill Type
- Vertical
- County
- LIBERTY
- District
- 3
- Operator
- RIM OPERATING INC.
- Completed
- 2006-01-27
Operator
- Name
- RIM OPER, INC
- Location
- ENGLEWOOD
- P-5 Status
- X (filed 2026-05-14)
- Cum Oil (all leases)
- 3,824,197 bbl
- Cum Gas (all leases)
- 485,820 mcf
- Activities
- CSGD/P, G/PUR, OPRS/O
- Total Permits
- 35