WELL · 42-003-05346 · DISTRICT 8

University -141- #A 3

N

Andrews County · Shafter Lake (Clear Fork) field  · Vertical

University -141- #A 3 (API 42-003-05346) is a disposal or injection well in Andrews County operated by Highmark Energy Operating LLC under an active UIC permit.

The RRC has issued one drilling permit, issued August 18, 1988, permitted to 10,650 ft.

It was permitted by Arco Oil & Gas CO. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.

Completion filings report 6 formation tops, including Rustler, Yates, Grayburg, San Andres.

Its lease has reported 541K barrels of oil and 315K mcf of gas since January 1993, last reporting in July 2026. The lease carries 15 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit.

Operator of record

Highmark Energy Operating LLC

Permitted by Arco Oil & Gas Co.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 4, 2025 · 23 permits on file · (903) 876-2591

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHighmark Energy Operating LLC
Production reportsHighmark Energy Operating, LLCthrough Apr 2026
Latest permitArco Oil & Gas Co.Aug 18, 1988

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

10,650
total depth, ft
1
permits on file
Aug 18, 1988
last permit issued
—
completed
541K
cumulative oil, bbl
315K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

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 15 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 141A ,173 O-10-5504Shafter Lake (Devonian)Highmark Energy Operating, LLC15541K315KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 4,608 · prior 12 4,748(-3%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 134 · prior 12 626(-79%)

0100200300202420252026

Chain of custody

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

  1. 1Henry Petroleum Corp.Jan 1993 → Mar 2001
  2. 2Henry Petroleum LPApr 2001 → Dec 2008
  3. 3COG Operating LLCJan 2009 → Dec 2012
  4. 4Legacy Reserves Operating LPJan 2013 → Aug 2020
  5. 5Highmark Energy Operating, LLCJul 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
350141-99RecompletionArco Oil & Gas Co.Aug 15, 1988Aug 18, 1988—10,650

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-5504————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Rustler1,880
Yates3,020
Grayburg4,353
San Andres4,580
Wolfcamp8,210
Devonian9,384

Perforations

Perforated and open-hole intervals.

FromToType
9,80810,600Perforated
9,80810,618Perforated
—6,760Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.375284—250 S
9.6254,073—1,500 S
4.59,716—640 S
79,808—750 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
00Mar 7, 2023Sep 9, 2022—
00Jan 29, 1993Sep 14, 1992—
00Oct 7, 1988Sep 20, 1988—
00Oct 1, 1988——
00Jan 12, 1984——

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) and the University Lands library. then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
11M
bbl, all reported
Mar 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000065667H-1 InjectionActive10,0002,5009,808–10,600

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0120252026

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/00305346, documented in the API reference.