WELL · 42-003-36848 · DISTRICT 8
University 1801 #1801
Andrews County · Shafter Lake N. (San Andres) field · Vertical
University 1801 #1801 (API 42-003-36848) is a well in Andrews County operated by Montare Operating Ltd., completed January 15, 1991.
The RRC has issued 2 drilling permits between 1990 and 2011, permitted to 4,850 ft.
It was permitted by Sandridge Expl. And Prod., LLC and has since transferred to Montare Operating Ltd. on the wellbore schedule.
Completion filings report 4 formation tops, including Yates, Seven Rivers, Grayburg, San Andres.
Its 2 leases have reported 588K barrels of oil and 365K mcf of gas since January 1993, last reporting in July 2026. The leases carry 25 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sandridge Expl. and Prod., LLC; the EWA schedule now lists a different operator.
Flower Mound, TX · P-5 Y, filed Mar 4, 2026 · 21 permits on file · (800) 290-0407
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Montare Operating Ltd. |
| Production reports | Montare Operating, Ltd.through Apr 2026 |
| Latest permit | Sandridge Expl. and Prod., LLCMay 16, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,850
- total depth, ft
- 2
- permits on file
- May 16, 2011
- last permit issued
- Jan 15, 1991
- completed
- 588K
- cumulative oil, bbl
- 365K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 15, 1991
- 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 25 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 1801 O-10-41503 | Shafter Lake, N. (San Andres) | Montare Operating, Ltd. | 23 | 515K | 320K | May 2011 – Jul 2026 |
| University 1801 O-10-32969 | Shafter Lake (San Andres) | Sandridge Expl. and Prod., LLC | 2 | 73.3K | 44.4K | Jan 1993 – Sep 2012 |
Oil, barrels lease total
Last 12 months 26,289 · prior 12 20,649(+27%)
Gas, mcf lease total
Last 12 months 21,312 · prior 12 14,703(+45%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Matador Drilling Corp.Jan 1993 → Mar 1995
- 2MDC Operating, Inc.Apr 1995 → Dec 2000
- 3Byrd Operating CompanyJan 2001 → Feb 2010
- 4OK Arena Operating CompanyMar 2010 → Jul 2010
- 5Sandridge Expl. and Prod., LLCAug 2010 → Oct 2018
- 6Avalon TX Operating, LLCNov 2018 → Jul 2021
- 7Montare Operating, Ltd.Aug 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 716224-99 | Field transfer | Sandridge Expl. and Prod., LLC | May 12, 2011 | May 16, 2011 | — | 4,850 |
| 380840-99 | Drill | Matador Drilling Corp. | Nov 9, 1990 | Nov 14, 1990 | Dec 14, 1990 | 4,850 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-32969 | — | — | — | — |
| — | — O-10-41503 | — | — | — | — |
| — | — O-10-41503 | — | — | — | — |
| — | — O-10-41503 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,188 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,950 | 238 |
| Seven Rivers | 3,070 | 118 |
| Grayburg | 4,505 | -1,317 |
| San Andres | 4,580 | -1,392 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,558 | 4,578 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,673 | 12.25 | 830 S |
| 5.5 | 4,852 | 7.875 | 1,050 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 26, 2014 | Jul 19, 2011 | Yes |
| 00 | Jun 23, 2014 | Jan 3, 2014 | — |
| 00 | Jul 18, 2012 | Jul 19, 2011 | Yes |
| 00 | Feb 25, 1991 | Jan 23, 1991 | Yes |
| 00 | Feb 1, 1991 | — | — |
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 42-003-36848 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-36848 → 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/00336848, documented in the API reference.