WELL · 42-163-33460 · DISTRICT 1

Heiser #1H

N

Frio County  · Horizontal

Heiser #1H (API 42-163-33460) is a permitted horizontal well in Frio County filed by Blackbrush O & G, LLC; no completion report is on file yet.

The RRC has issued 3 drilling permits between 2011 and 2019, permitted to 7,500 ft.

Completion filings report 3 formation tops, including Austin Chalk, Eagle Ford, Buda.

Its 3 leases have reported 43.3K barrels of oil and 148K mcf of gas since July 2011, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Blackbrush O & G, LLC

San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 339 permits on file · (210) 569-6756

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsBlackbrush O & G, LLCthrough Apr 2026
Latest permitBlackbrush O & G, LLCJun 26, 2019
7,500
total depth, ft
3
permits on file
Jun 26, 2019
last permit issued
—
completed
43.3K
cumulative oil, bbl
148K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

28.683224, -99.286455

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Frio County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Heiser O-1-17926Pearsall (Buda, S.)Blackbrush O & G, LLC121.8K120KNov 2012 – Jul 2026
Heiser O-1-16968Pearsall (Buda Lime)Blackbrush O & G, LLC121.6K28.2KOct 2011 – Mar 2016
Heiser Unit O-1-16213Pearsall (Austin Chalk)Blackbrush O & G, LLC100Jul 2011 – Feb 2015

Oil, barrels lease total

Last 12 months 978 · prior 12 944(+4%)

050100150202420252026

Gas, mcf lease total

Last 12 months 5,637 · prior 12 3,152(+79%)

05001K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Blackbrush O & G, Inc.Oct 2011 → Apr 2012
  2. 2Blackbrush O & G, LLCMay 2012 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
854496-99Field transferBlackbrush O & G, LLCJun 24, 2019Jun 26, 2019—7,300
723361-99RecompletionBlackbrush O & G, Inc.Aug 30, 2011Sep 2, 2011Sep 6, 20117,500
712015-99DrillBlackbrush O & G, Inc.Mar 11, 2011Mar 17, 2011Mar 31, 20117,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-16213————
—— O-1-16968————
—— O-1-17926————

Formation tops

As filed on W-2/G-1. Subsea from 575 ft elevation.Download CSV →

FormationMD ftSubsea
Austin Chalk6,568-5,993
Austin Chalk6,583-6,008
Austin ChalkAUSTIN CHALK B6,637-6,062
Austin ChalkAUSTIN CHALK C6,824-6,249
Eagle FordEAGLEFORD7,032-6,457
Buda7,225-6,650

Perforations

Perforated and open-hole intervals.

FromToType
6,96010,115Open hole
7,48710,118Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37581017.5646 S
9.6253,56812.25795 S
9.6256,96012.25450 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Dec 4, 2014Aug 13, 2013Yes
00Sep 6, 2013Oct 27, 2011Yes
00Feb 1, 2013Aug 30, 2011Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

R. L. Minor42-163-33975

4.3 KM · Texas International Resource LLC · Section with this well →

Olmos5,189-4,659
Anacacho6,380-5,850
Austin Chalk6,800-6,270
Eagle Ford7,339-6,809
Buda7,540-7,010
Pearsall—
Queen City—
Navarro—

10 TOPS · FIRST 8

Coppedge42-163-33536

5.8 KM · Blackbrush O & G, LLC · Section with this well →

Austin Chalk6,679-6,077
Austin Chalk6,679-6,077
Eagle Ford7,252-6,650
Eagle Ford7,252-6,650
Buda7,358-6,756
Buda7,358-6,756
Anacacho—
Escondido—

13 TOPS · FIRST 8

PH Green42-163-34293

5.9 KM · Mueller Exploration, Inc. · Section with this well →

Olmos4,800-4,241
Anacacho6,098-5,539
Austin Chalk6,340-5,781
Eagle Ford6,780-6,221
Escondido—
Buda—
Queen City—
Pearsall—

10 TOPS · FIRST 8

PH Green42-163-34292

5.9 KM · Mueller Exploration, Inc. · Section with this well →

Olmos4,800-4,241
Anacacho6,098-5,539
Austin Chalk6,340-5,781
Eagle Ford6,780-6,221
Queen City—
Buda—
Escondido—
Georgetown—

10 TOPS · FIRST 8

Whitwell G42-163-34171

6.0 KM · Trinity Operating (Usg), LLC · Section with this well →

Queen City958-353
Olmos2,475-1,870
Navarro3,121-2,516
Escondido3,947-3,342
Anacacho5,771-5,166
Austin Chalk6,161-5,556
Eagle Ford6,599-5,994
Georgetown—

10 TOPS · FIRST 8

Whitwell G42-163-34170

6.0 KM · Trinity Operating (Usg), LLC · Section with this well →

Queen City960-354
Olmos2,500-1,894
Navarro3,157-2,551
Escondido3,995-3,389
Anacacho5,764-5,158
Austin Chalk6,162-5,556
Eagle Ford6,620-6,014
Georgetown—

10 TOPS · FIRST 8

Whitwell G42-163-34169

6.0 KM · Trinity Operating (Usg), LLC · Section with this well →

Queen City2,187-1,581
Navarro3,473-2,867
Escondido4,465-3,859
Olmos4,960-4,354
Anacacho5,707-5,101
Austin Chalk6,103-5,497
Eagle Ford6,488-5,882
Georgetown—

10 TOPS · FIRST 8

Lloyd Hurt D42-283-36577

7.3 KM · Matador Production Company · Section with this well →

Sparta2,341-1,795
Queen City3,087-2,541
Wilcox3,435-2,889
Escondido3,885-3,339
Olmos4,882-4,336
Austin Chalk6,702-6,156
Eagle Ford7,193-6,647
Pearsall—

10 TOPS · FIRST 8

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/16333460, documented in the API reference.