42-335-34701
Final CompletionWESTBROOK SOUTHWEST UNIT
MITCHELL County · District 8 · GRAYROCK ENERGY II LLC · WESTBROOK
Permits
1
Max Depth
3,600 ft
First Permit
2006-11-21
Latest Activity
2006-11-21
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2014-03-13
Shut-In
—
Plugged
2024-07-12
EWA / Permit operator mismatch
Scheduling: GRAYROCK ENERGY II LLC ≠ Permit: CIMAREX ENERGY CO. OF COLORADO
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
900 bbl/d
Max Pressure
1,050 psi
Injection Interval
2,300–3,400 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2024-01-01)
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 (11) Elevation 2,140 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CLEARFORK (Clear Fork) | 2,400 ft | -260 ft |
| CLEARFORK (Clear Fork) | — | — |
| COLEMAN JUNCTION - POSSIBLE LOST (Coleman Junction) | — | — |
| GLORIETA | — | — |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | — | — |
| SANTA ROSA - POSSIBLE LOST CIRCU (Santa Rosa) | — | — |
| SEVEN RIVERS | — | — |
| TUBB | — | — |
| WICHITA (Wichita-Albany) | — | — |
| WOLFCAMP | — | — |
| YATES - OVERPRESSURED, POSSIBLE (Yates) | — | — |
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 (4)
| Interval | Type |
|---|---|
| 2,444–2,634 ft | Perforated |
| 2,444–3,170 ft | Perforated |
| 2,682–2,967 ft | Perforated |
| 3,013–3,170 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 353 ft | 275 sx |
| 5.5" | 3,300 ft | 1,345 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
- 320
- Max Depth
- 3,600 ft
- Drill Type
- Vertical
- County
- MITCHELL
- District
- 8
- Operator
- GRAYROCK ENERGY II LLC
- Completed
- 2014-03-13
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