WELL · 42-507-33332 · DISTRICT 1

Buck #1

Plugged

Zavala County · Pena Creek (Georgetown) field · Horizontal

Buck #1 (API 42-507-33332) is a plugged horizontal well in Zavala County, plugged June 9, 2020, last operated by Cml Exploration LLC.

The RRC has issued 2 drilling permits between 2018 and 2019, permitted to 7,400 ft.

Completion filings report 6 formation tops, including Escondido, Olmos, Anacacho, Austin Chalk.

Its 2 leases have reported 214 barrels of oil and 1.18K mcf of gas since October 2018, last reporting in March 2022. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

CML Exploration LLC

Austin, TX · P-5 Y, filed Jul 4, 2026 · 514 permits on file · (800) 460-6313

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	CML Exploration LLC
Production reports	CML Exploration, LLCthrough Jul 2019
Latest permit	CML Exploration, LLCJan 10, 2019

7,400: total depth, ft
2: permits on file
Jan 10, 2019: last permit issued
Oct 11, 2018: completed
214: cumulative oil, bbl
1.18K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2018 THROUGH Mar 2022

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Oct 11, 2018
Shut in: —
Plugged: Jun 9, 2020

Surface location

28.680103, -99.604861

OpenStreetMap → · Google Maps →

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

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Buck O-1-19440	Pena Creek (Georgetown)	CML Exploration, LLC	1	214	1.18K	Oct 2018 – Mar 2022
Buck O-1-19573	Pearsall (Austin Chalk)	CML Exploration, LLC	1	0	0	Jan 2019 – Nov 2020

No volumes reported on these leases in the last three years.

Chain of custody

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

1CML Exploration, LLCOct 2018 → Jul 2019

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
848416-99	Recompletion	CML Exploration, LLC	Jan 7, 2019	Jan 10, 2019	Jan 7, 2019	6,840
840104-99	Drill	CML Exploration, LLC	May 16, 2018	Jun 6, 2018	Sep 22, 2018	7,400

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-1-19440	—	—	—	—
—	— O-1-19573	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 597 ft elevation.Download CSV →

Formation	MD ft	Subsea
EscondidoESCONDIDO - DISPOSAL	2,984	-2,387
Olmos	4,008	-3,411
Anacacho	5,429	-4,832
Austin Chalk	5,877	-5,280
Buda	6,879	-6,282
Georgetown	7,188	-6,591

Perforations

Perforated and open-hole intervals.

From	To	Type
6,109	6,156	Perforated
7,865	10,328	Open hole

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	5,670	12.25	1,542 S
7	7,865	8.75	773 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Mar 21, 2019	Feb 8, 2019	Yes
00	Nov 13, 2018	Oct 26, 2018	Yes

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.

Wellbore filings for 42-507-33332 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-507-33332 → scanned completion filings

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 →

Pfeiffer-Byrd42-507-33514

1.4 KM · CML Exploration, LLC · Section with this well →

Escondido	2,923	-2,293
Olmos	3,960	-3,330
Austin Chalk	5,801	-5,171

Aaron42-507-33346

1.6 KM · CML Exploration, LLC · Section with this well →

Escondido	2,946	-2,343
Olmos	3,987	-3,384
Anacacho	5,422	-4,819
Austin Chalk	5,867	-5,264
Buda	6,848	-6,245
Georgetown	7,150	-6,547

Heitz42-507-33318

2.4 KM · CML Exploration, LLC · Section with this well →

Escondido	3,035	-2,485
Eagle Ford	6,645	-6,095
Pena Creek (Georgetown)	7,252	-6,702

J. Beeler42-507-33335

3.8 KM · CML Exploration, LLC · Section with this well →

Escondido	2,874	-2,240
Olmos	3,915	-3,281
Anacacho	5,341	-4,707
Austin Chalk	5,783	-5,149
Buda	6,823	-6,189
Georgetown	7,151	-6,517

J&M Holdsworth Zav42-507-33535

4.0 KM · Buffco Production Inc. · Section with this well →

Escondido	3,040	-2,446
Austin Chalk	5,612	-5,018
Eagle Ford	6,271	-5,677

J&M Holdsworth Zav42-507-33534

4.0 KM · Buffco Production Inc. · Section with this well →

Escondido	3,053	-2,459
Austin Chalk	5,588	-4,994
Eagle Ford	6,248	-5,654

J&M Holdsworth Zav42-507-33537

4.1 KM · Buffco Production Inc. · Section with this well →

Escondido	2,834	-2,223
Austin Chalk	5,766	-5,155
Eagle Ford	6,305	-5,694

J&M Holdsworth Zav42-507-33538

4.1 KM · Buffco Production Inc. · Section with this well →

Escondido	2,830	-2,219
Austin Chalk	5,754	-5,143
Eagle Ford	6,308	-5,697

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/50733332, documented in the API reference.