WELL · 42-163-32870 · DISTRICT 1

Mudd Ranch #1 H

Plugged

Frio County · Pearsall (Austin Chalk) field · Horizontal

Mudd Ranch #1 H (API 42-163-32870) is a plugged horizontal well in Frio County, plugged September 3, 1998, last operated by JB Oil & Gas Well Service.

The RRC has issued one drilling permit (amended once), issued September 26, 1990, permitted to 6,800 ft.

Completion filings report 3 formation tops, including Olmos, San Miguel, Austin Chalk.

Its lease has reported 16.5K barrels of oil and 16.6K mcf of gas since January 1993, last reporting in December 1998.

Operator of record

JB Oil & Gas Well Service

Dilley, TX · P-5 Y, filed Oct 4, 2025 · 16 permits on file · (210) 478-1376

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	JB Oil & Gas Well Service
Production reports	JB Oil & Gas Well Servicethrough Jun 1997
Latest permit	JB Oil & Gas Well ServiceSep 26, 1990

6,800: total depth, ft
2: permits on file
Sep 26, 1990: last permit issued
Nov 15, 1990: completed
16.5K: cumulative oil, bbl
16.6K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 1998

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Nov 15, 1990
Shut in: —
Plugged: Sep 3, 1998

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Mudd Ranch O-1-12894	Pearsall (Austin Chalk)	JB Oil & Gas Well Service	1	16.5K	16.6K	Jan 1993 – Dec 1998

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.

1JB Oil & Gas Well ServiceJan 1993 → Jun 1997

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
378558-98	Drill	JB Oil & Gas Well Service	Jul 2, 1992	Sep 26, 1990	—	5,752
378558-99	Drill	JB Oil & Gas Well Service	Sep 26, 1990	Sep 26, 1990	Oct 6, 1990	6,800

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-1-12894	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 571 ft elevation.Download CSV →

Formation	MD ft	Subsea
Olmos	4,935	-4,364
San Miguel	5,615	-5,044
Austin Chalk	6,635	-6,064

Perforations

Perforated and open-hole intervals.

From	To	Type
6,635	9,750	Open hole

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	704	14.75	480 S
7	6,440	9.875	385 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 6, 1991	Jan 7, 1991	Yes
00	Mar 4, 1991	—	—

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 42-163-32870 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-163-32870 → 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.

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/16332870, documented in the API reference.