WELL · 42-283-31498 · DISTRICT 1

Shiner Ranch #8

Plugged

LA Salle County · Pearsall (Austin Chalk) field  · Horizontal

Shiner Ranch #8 (API 42-283-31498) is a plugged horizontal well in La Salle County, plugged February 16, 2000, last operated by Trinity Operating (Usg) LLC.

The RRC has issued one drilling permit (amended once), issued December 20, 1991, permitted to 7,600 ft.

It was permitted by Oryx Energy Company and has since transferred to Trinity Operating (Usg) LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Olmos, 1st Lime, Anacacho, Ausitn Chalk.

Its 2 leases have reported 634K barrels of oil and 1.22M mcf of gas since January 1993, last reporting in July 2026. The leases carry 14 wells, so these are lease totals, not this well alone.

Operator of record

Trinity Operating (Usg) LLC

Permitted by Oryx Energy Company; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Jan 28, 2026
Permits on file
392
Phone
(713) 951-5309

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleTrinity Operating (Usg) LLC
Production reportsTrinity Operating (Usg), LLCthrough Mar 2021
Latest permitOryx Energy CompanyDec 20, 1991

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

7,600
total depth, ft
2
permits on file
Dec 20, 1991
last permit issued
Feb 28, 1992
completed
634K
cumulative oil, bbl
1.22M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 28, 1992
Shut in
—
Plugged
Feb 16, 2000

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 2 leases this well is completed on; they carry 14 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Shiner Ranch O-1-4933Pearsall (Austin Chalk)Trinity Operating (Usg), LLC13634K1.22MJan 1993 – Jul 2026
Shiner Ranch 8 O-1-13807Pearsall (Austin Chalk)Ginco Operating Co.1342Dec 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. 1Oryx Energy CompanyJan 1993 → Mar 1999
  2. 2Penrod Oil Company of Texas, IncAug 1994 → Sep 1994
  3. 3Mobile Production Systems, Inc.Oct 1994 → Oct 1994
  4. 4Ginco Operating Co.Jun 1995 → Oct 1995
  5. 5Kerr-McGee CorporationApr 1999 → Sep 1999
  6. 6Kerr-McGee Oil & Gas Onshore LLCOct 1999 → Jan 2003
  7. 7Texas American Resources CompanyFeb 2003 → Jan 2018
  8. 8Trinity Operating (Usg), LLCFeb 2018 → Mar 2021

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
395323-98DrillOryx Energy CompanySep 14, 1992Dec 20, 1991—7,600
395323-99DrillOryx Energy CompanyDec 20, 1991Dec 20, 1991Jan 11, 19927,552

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-4933————
—— O-1-13807————

Formation tops

As filed on W-2/G-1. Subsea from 425 ft elevation.Download CSV →

FormationMD ftSubsea
Olmos5,657-5,232
1ST Lime6,895-6,470
Anacacho7,050-6,625
Ausitn Chalk7,324-6,899

Perforations

Perforated and open-hole intervals.

FromToType
7,40911,240Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37584617.5625 S
9.6257,40912.252,465 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 7, 1993Apr 9, 1992Yes
00Oct 15, 1992Apr 9, 1992Yes
00Sep 28, 1992——

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/28331498, documented in the API reference.