42-163-32800

Horizontal

PEARSALL PARTNERS/GLG W.A.CARNES

FRIO County · District 1 · BLACKBRUSH O & G LLC · PEARSALL (AUSTIN CHALK)

Permits

4

Max Depth

11,000 ft

First Permit

1990-08-10

Latest Activity

2010-07-08

Lifespan

20 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1990-09-26

Shut-In

Plugged

!

EWA / Permit operator mismatch

Scheduling: BLACKBRUSH O & G LLC ≠ Permit: BLACKBRUSH O & G, INC.

Resolved via: schedulingBLACKBRUSH O & G LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (4) Elevation 507 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
AUSTIN CHALK 6,555 ft-6,048 ft
AUSTIN CHALK
AUSTIN CHALK B-1 (Austin Chalk)
AUSTIN CHALK B-2 (Austin Chalk)

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)

IntervalType
6,555–10,795 ftPerforated
6,598–7,864 ftOpen hole
6,598–8,509 ftOpen hole

Casing (2)

SizeSet DepthCement
10.75"780 ft200 sx
7"6,285 ft855 sx

Permit History (4)

Applications (4)

#698671 A BLACKBRUSH O & G, INC.
received 2010-09-13
#698671 A BLACKBRUSH O & G, INC.
received 2010-08-11
#698671 A BLACKBRUSH O & G, INC.
received 2010-07-07
#376466 A PEARSALL PARTNERS
received 1990-08-10

Records & Logs

4 completion filings on record · 3 with log images at RRC.

W-2/G-1 2010-09-20 log on file
W-2/G-1 1990-12-06 log on file
W-2/G-1 1990-12-06 log on file
W-2/G-1 1991-11-19

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 FRIO County.

Well Details

Well Number
5H
Max Depth
11,000 ft
Drill Type
Horizontal
County
FRIO
District
1
Completed
1990-09-26

Operator

Location
SAN ANTONIO
P-5 Status
Active (filed 2025-09-16)
Cum Oil (all leases)
14,940,812 bbl
Cum Gas (all leases)
59,004,108 mcf
Activities
GTHS/G, OPRS/G, OPRS/O
Total Permits
339