WELL · 42-003-34435 · DISTRICT 8
University 155 #F8
Andrews County · Shafter Lake (Ellenburger) field · Vertical
University 155 #F8 (API 42-003-34435) is a permitted well in Andrews County filed by Arco Oil & Gas CO.; no completion report is on file yet.
The RRC has issued one drilling permit, issued August 13, 1984, permitted to 11,825 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, Wichita-Albany.
Its 2 leases have reported 133K barrels of oil and 31.2K mcf of gas since January 1993, last reporting in July 2026. The leases carry 8 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 Y, filed Dec 4, 2025 · 23 permits on file · (903) 876-2591
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Highmark Energy Operating LLC |
| Production reports | Highmark Energy Operating, LLCthrough May 2024 |
| Latest permit | Arco Oil & Gas Co.Aug 13, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,825
- total depth, ft
- 1
- permits on file
- Aug 13, 1984
- last permit issued
- —
- completed
- 133K
- cumulative oil, bbl
- 31.2K
- 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 2 leases this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 154 O-10-5512 | Shafter Lake (Ellenburger) | Highmark Energy Operating, LLC | 6 | 86.4K | 11.2K | Jan 1993 – Jul 2026 |
| University 155 O-10-33625 | Shafter Lake (Ellenburger) | Highmark Energy Operating, LLC | 2 | 46.2K | 20K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 63(-100%)
Gas, mcf lease total
Last 12 months 0 · prior 12 48(-100%)
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
- 5Highmark Energy Operating, LLCSep 2023 → May 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 248096-99 | Drill | Arco Oil & Gas Co. | Aug 10, 1984 | Aug 13, 1984 | Aug 29, 1984 | 11,825 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-5512 | — | — | — | — |
| — | — O-10-33625 | — | — | — | — |
| — | — O-10-33625 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,229 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,000 | 229 |
| San Andres | 4,468 | -1,239 |
| Clear ForkCLEARFORK | 5,800 | -2,571 |
| Wichita-AlbanyWICHITA ALBANY | 6,902 | -3,673 |
| Devonian | 9,310 | -6,081 |
| Ellenburger | 11,600 | -8,371 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,580 | 11,596 | Perforated |
| 11,603 | 11,656 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 360 | 17.5 | 400 S |
| 13.375 | 360 | — | 400 S |
| 8.625 | 4,300 | 12.25 | 2,700 S |
| 8.625 | 4,300 | — | 2,700 S |
| 5.5 | 11,687 | 7.875 | 2,300 S |
| 5.5 | 11,687 | — | 2,300 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 | Sep 26, 1994 | Aug 21, 1990 | — |
| 00 | Dec 8, 1992 | Aug 21, 1990 | — |
| 00 | Feb 12, 1991 | Aug 21, 1990 | — |
| 00 | Nov 20, 1984 | Nov 5, 1984 | — |
| 00 | Nov 10, 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.
- Wellbore filings for 42-003-34435 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-34435 → 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/00334435, documented in the API reference.