42-335-34284
INJECTIONWESTBROOK SOUTHWEST UNIT
MITCHELL County · District 8 · GRAYROCK ENERGY II LLC · WESTBROOK
Permits
1
Max Depth
3,600 ft
First Permit
2002-10-07
Latest Activity
2002-10-07
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2006-02-09
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: GRAYROCK ENERGY II LLC ≠ Permit: GRUY PETROLEUM MANAGEMENT CO.
Resolved via: production → GRAYROCK ENERGY II, LLC
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
Injection / Disposal
Permitted Volume
700 bbl/d
Max Pressure
1,100 psi
Injection Interval
2,300–3,300 ft
Injected (12mo)
165,780 bbl
Monthly injected volume (bbl, from H-10 filings through 2026-01-01)
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 (2) Elevation 2,143 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CLEARFORD | 3,010 ft | -867 ft |
| CLEARFORK (Clear Fork) | 3,010 ft | -867 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 |
|---|---|
| 2,400–2,840 ft | Perforated |
| 3,010–3,080 ft | Perforated |
| 3,114–3,146 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 621 ft | 255 sx |
| 5.5" | 3,302 ft | 795 sx |
Permit History (1)
Applications (1)
Records & Logs
3 completion filings on record · 1 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
- 5811
- Max Depth
- 3,600 ft
- Drill Type
- Vertical
- County
- MITCHELL
- District
- 8
- Operator
- GRAYROCK ENERGY II LLC
- Completed
- 2006-02-09
Operator
- Location
- FORT WORTH
- P-5 Status
- Active (filed 2025-10-16)
- Cum Oil (all leases)
- 1,537,532 bbl
- Cum Gas (all leases)
- 35,084 mcf
- Activities
- OPRS/G, OPRS/O