42-025-32677

PRODUCING Horizontal

TOMASEK GAS UNIT

BEE County · District 2 · BLACKBRUSH O & G LLC · PAWNEE (EDWARDS)

Permits

Max Depth

14,200 ft

First Permit

1993-07-30

Latest Activity

2001-04-17

Lifespan

8 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

2001-10-13

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Permit operator mismatch

Scheduling: BLACKBRUSH O & G LLC ≠ Permit: PIONEER NATURAL RES. USA, INC.

Resolved via: production → BLACKBRUSH O & G, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-09

Last Production

2026-07

Operator History

Chain of Custody

PARKER & PARSLEY DEVELOPMENT CO. 1993-1995→ PARKER & PARSLEY DEVELOPMENT L.P 1995-1997→ PIONEER NATURAL RES. USA, INC. 1997-2019→ ENSIGN OPERATING LLC 2019-2022→ BB-SOUTHTEX, LLC 2022-2024→ BLACKBRUSH O & G, LLC 2024-2026

Lease Production

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

Gas

production & DCA →

Formation Tops (6) Elevation 355 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
QUEEN CITY	4,460 ft	-4,105 ft
WILCOX	6,980 ft	-6,625 ft
NAVARRO	10,530 ft	-10,175 ft
AUSTIN CHALK	12,320 ft	-11,965 ft
EDWARDS	13,460 ft	-13,105 ft
EDWARDS	13,544 ft	-13,189 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)

Interval	Type
13,335–15,071 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	3,800 ft	1,880 sx
5.5"	14,000 ft	1,345 sx

Permit History (2)

#507612 Recompletion Final Completion

TOMASEK GAS UNIT · 14,200 ft

2001-04-17

Spud 2001-09-26

#414466 Drill Final Completion

TOMASEK GAS UNIT · 14,000 ft

1993-07-30

Spud 1993-08-11

Applications (2)

#507612 A PIONEER NATURAL RES. USA, INC.

received 2001-04-10

#414466 A PARKER & PARSLEY DEVELOPMENT CO.

received 1993-07-30

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 2001-11-16

W-2/G-1 1993-10-29 log on file

W-2/G-1 1993-11-09

Completion packets + logs ↗ Wellbore filings ↗

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 BEE County.

Well Details

Well Number: 4
Max Depth: 14,200 ft
Drill Type: Horizontal
County: BEE
District: 2
Operator: BLACKBRUSH O & G LLC
Completed: 2001-10-13

Operator

Name: BLACKBRUSH O & G, LLC
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: 338