WELL · 42-003-36105 · DISTRICT 8
University -154- #20
Andrews County · Shafter Lake (Devonian) field · Vertical
University -154- #20 (API 42-003-36105) is a plugged well in Andrews County, plugged September 22, 2022, last operated by Highmark Energy Operating LLC.
The RRC has issued one drilling permit, issued March 23, 1988, permitted to 9,975 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 Yates, San Andres, Clear Fork, Wolfcamp.
Its lease has reported 634K barrels of oil and 602K mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Arco Oil & Gas Co.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Active, filed Mar 9, 2026 · 23 permits on file · (469) 214-5299
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Highmark Energy Operating LLC |
| Production reports | Legacy Reserves Operating LPthrough May 2021 |
| Latest permit | Arco Oil & Gas Co.Mar 23, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,975
- total depth, ft
- 1
- permits on file
- Mar 23, 1988
- last permit issued
- May 25, 1988
- completed
- 634K
- cumulative oil, bbl
- 602K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 25, 1988
- Shut in
- —
- Plugged
- Sep 22, 2022
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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University -154- O-10-5506 | Shafter Lake (Devonian) | Highmark Energy Operating, LLC | 6 | 634K | 602K | Jan 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.
- 1Henry Petroleum Corp.Jan 1993 → Mar 2001
- 2Henry Petroleum LPApr 2001 → Dec 2008
- 3COG Operating LLCJan 2009 → Dec 2012
- 4Legacy Reserves Operating LPJan 2013 → May 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 344315-99 | Drill | Arco Oil & Gas Co. | Mar 23, 1988 | Mar 23, 1988 | Apr 4, 1988 | 9,975 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-5506 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,201 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,912 | 289 |
| San Andres | 4,443 | -1,242 |
| Clear ForkCLEARFORK | 6,041 | -2,840 |
| Wolfcamp | 8,201 | -5,000 |
| Woodford | 9,236 | -6,035 |
| Devonian | 9,354 | -6,153 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,357 | 9,404 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 385 | 17.5 | 415 S |
| 9.625 | 4,300 | 12.25 | 2,175 S |
| 7 | 9,900 | 8.75 | 2,045 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 | Jun 29, 1988 | Jun 10, 1988 | Yes |
| 00 | Jun 18, 1988 | — | — |
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 42-003-36105 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-36105 → 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/00336105, documented in the API reference.