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WESTBROOK SOUTHWEST UNIT

MITCHELL County · District 8 · GRAYROCK ENERGY II LLC · WESTBROOK

Permits

1

Max Depth

3,350 ft

First Permit

1979-10-23

Latest Activity

1979-10-23

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1982-09-16

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: GRAYROCK ENERGY II LLC ≠ Permit: UNION TEXAS PETROLEUM CORP.

Resolved via: productionGRAYROCK ENERGY II, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000046331 permitted 2007-03-09

Permitted Volume

700 bbl/d

Max Pressure

1,100 psi

Injection Interval

2,300–3,300 ft

Injected (12mo)

Monthly injected volume (bbl, from H-10 filings through 2026-01-01)

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (1) Elevation 2,050 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MIDDLE CLEARFORK (Clear Fork)3,062 ft-1,012 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 (1)

IntervalType
3,062–3,276 ftPerforated

Casing (3)

SizeSet DepthCement
10.75"304 ft250 sx
2.375"3,113 ft
5.5"3,300 ft633 sx

Permit History (1)

Applications (1)

#63463 A UNION TEXAS PETROLEUM CORP.
received 1979-10-23

Records & Logs

2 completion filings on record.

W-2/G-1 1990-06-20
W-2/G-1 1978-12-28

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

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in MITCHELL County.

Well Details

Well Number
4-20
Max Depth
3,350 ft
Drill Type
Vertical
County
MITCHELL
District
8
Completed
1982-09-16

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