WELL · 42-163-30894 · DISTRICT 1

Turnham J.C. #1H

Plugged

Frio County · Pearsall (Austin Chalk) field  · Horizontal

Turnham J.C. #1H (API 42-163-30894) is a plugged horizontal well in Frio County, plugged September 14, 2021, last operated by First Rock Inc..

The RRC has issued one drilling permit, issued August 18, 2005, permitted to 7,000 ft.

Completion filings report one formation top, including Austin Chalk.

Its lease has reported 43.9K barrels of oil and 10.6K mcf of gas since January 1993, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.

Operator of record

First Rock Inc.

Corpus Christ, TX · P-5 Y, filed Feb 4, 2026 · 68 permits on file · (361) 215-5559

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFirst Rock Inc.
Production reportsFirst Rock, Inc.through Apr 2017
Latest permitFirst Rock, Inc.Aug 18, 2005
7,000
total depth, ft
1
permits on file
Aug 18, 2005
last permit issued
Sep 20, 2005
completed
43.9K
cumulative oil, bbl
10.6K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Sep 20, 2005
Shut in
—
Plugged
Sep 14, 2021

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; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Turnham, J.C. O-1-5163Pearsall (Austin Chalk)First Rock, Inc.343.9K10.6KJan 1993 – Jul 2026

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.

  1. 1Magnum Producing & Operating Co.Jan 1993 → Aug 1994
  2. 2First Rock, Inc.May 1998 → Apr 2017

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
604969-99RecompletionFirst Rock, Inc.Aug 15, 2005Aug 18, 2005Aug 24, 20057,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-5163————
—— O-1-5163————

Formation tops

As filed on W-2/G-1. Subsea from 361 ft elevation.Download CSV →

FormationMD ftSubsea
Austin Chalk7,050-6,689

Perforations

Perforated and open-hole intervals.

FromToType
6,7658,422Perforated
6,8127,084Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62540512.5550 S
8.62540512.25—
—3,654——
5.57,2007.875400 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
00Aug 24, 2006Oct 10, 2005Yes
00Apr 19, 2006Jan 31, 1977—
00Jan 12, 1984Jan 31, 1977—

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.

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/16330894, documented in the API reference.