WELL · 42-003-38891 · DISTRICT 8
University San Andres Unit #23A
Andrews County · Shafter Lake (San Andres) field · Producing · Vertical
University San Andres Unit #23A (API 42-003-38891) is a well in Andrews County operated by Highmark Energy Operating LLC, completed October 11, 2001 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 20, 2001, permitted to 4,780 ft.
It was permitted by Henry Petroleum LP and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Santa Rosa, Yates, San Andres.
Its lease has reported 743K barrels of oil and 422K mcf of gas since August 2001, last reporting in July 2026. The lease carries 44 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Henry Petroleum LP; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 9, 2026
- Permits on file
- 23
- Phone
- (469) 214-5299
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Highmark Energy Operating LLC |
| Production reports | Highmark Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Henry Petroleum LPSep 20, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,780
- total depth, ft
- 1
- permits on file
- Sep 20, 2001
- last permit issued
- Oct 11, 2001
- completed
- 743K
- cumulative oil, bbl
- 422K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2001 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 11, 2001
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 44 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University San Andres Unit O-10-36661 | Shafter Lake (San Andres) | Highmark Energy Operating, LLC | 44 | 743K | 422K | Aug 2001 – Jul 2026 |
Oil, barrels lease total
Last 12 months 7,813 · prior 12 8,692(-10%)
Gas, mcf lease total
Last 12 months 157 · prior 12 376(-58%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Henry Petroleum LPAug 2001 → Dec 2008
- 2COG Operating LLCJan 2009 → Dec 2012
- 3Legacy Reserves Operating LPJan 2013 → Feb 2023
- 4Highmark Energy Operating, LLCMar 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 513782-99 | Drill | Henry Petroleum LP | Sep 20, 2001 | Sep 20, 2001 | Sep 22, 2001 | 4,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 11, 2001 | University San Andres Unit O-10-36661 | Shafter Lake (San Andres) | Highmark Energy Operating LLC | Producing | 4,780 |
Formation tops
As filed on W-2/G-1. Subsea from 3,218 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,150 | 2,068 |
| Yates | 2,900 | 318 |
| San Andres | 4,450 | -1,232 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,483 | 4,537 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,721 | 12.25 | 735 S |
| 4.5 | 4,780 | 7.875 | 1,005 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 | Jan 14, 2002 | Nov 19, 2001 | Yes |
| 00 | Dec 13, 2001 | — | — |
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 42-003-38891 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-38891 → scanned completion filings
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.
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/00338891, documented in the API reference.