WELL · 42-235-36437 · DISTRICT 7
University 38 #0303WB
Irion County · Lin (Wolfcamp) field · Horizontal
University 38 #0303WB (API 42-235-36437) is a horizontal well in Irion County operated by Sem Operating Company LLC, completed February 19, 2020.
The RRC has issued one drilling permit, issued January 9, 2020, permitted to 10,000 ft.
Completion filings report 7 formation tops, including Grayburg, San Andres, Clear Fork, Spraberry.
Its lease has reported 898K barrels of oil and 11.7M mcf of gas since February 2011, last reporting in July 2026. The lease carries 9 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Apr 4, 2026 · 404 permits on file · (877) 447-2289
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sem Operating Company LLC |
| Production reports | Sem Operating Company LLCthrough Apr 2026 |
| Latest permit | Sem Operating Company LLCJan 9, 2020 |
- 10,000
- total depth, ft
- 1
- permits on file
- Jan 9, 2020
- last permit issued
- Feb 19, 2020
- completed
- 898K
- cumulative oil, bbl
- 11.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 19, 2020
- Shut in
- —
- Plugged
- —
Surface location
31.087153, -101.072437
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Irion County.
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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 38 O-9-17667 | Lin (Wolfcamp) | Sem Operating Company LLC | 9 | 898K | 11.7M | Feb 2011 – Jul 2026 |
Gas, mcf lease total
Last 12 months 866,586 · prior 12 927,541(-7%)
Oil, barrels lease total
Last 12 months 20,210 · prior 12 25,110(-20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Feb 2011 → May 2016
- 2Sem Operating Company LLCJun 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 859931-99 | Drill | Sem Operating Company LLC | Dec 12, 2019 | Jan 9, 2020 | Feb 18, 2020 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-17667 | — | — | — | — |
| — | — O-9-17667 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,559 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 814 | 1,745 |
| San Andres | 1,553 | 1,006 |
| Clear ForkCLEARFORK | 3,301 | -742 |
| Spraberry | 4,316 | -1,757 |
| Wolfcamp | 6,570 | -4,011 |
| Canyon | — | — |
| Clear ForkCLEARFORK | — | — |
| Fusselman | — | — |
| Grayburg | — | — |
| San Andres | — | — |
| Spraberry | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,812 | 21,667 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 712 | 12.25 | 450 S |
| 5.5 | 21,751 | 8.75 | 4,700 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 | Aug 3, 2021 | Jul 6, 2021 | Yes |
| 00 | Jan 27, 2021 | Jan 15, 2021 | — |
| 00 | Oct 9, 2020 | Sep 23, 2020 | — |
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 42-235-36437 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-235-36437 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
University 38-4042-235-36292
0.9 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,532 | 1,032 |
| San Andres | 2,240 | 324 |
| Clear Fork | 3,280 | -716 |
| Spraberry | 4,470 | -1,906 |
| Wolfcamp | 5,781 | -3,217 |
| Canyon | — | |
| Fusselman | — |
University 38-4042-235-36291
0.9 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,283 | 1,280 |
| San Andres | 1,991 | 572 |
| Clear Fork | 3,031 | -468 |
| Spraberry | 4,221 | -1,658 |
| Wolfcamp | 5,532 | -2,969 |
| Fusselman | — | |
| Canyon | — |
University 38-4042-235-36258
2.1 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,752 | 773 |
| San Andres | 2,107 | 418 |
| Clear Fork | 3,304 | -779 |
| Spraberry | 4,559 | -2,034 |
| Wolfcamp | 5,805 | -3,280 |
| Canyon | — | |
| Fusselman | — |
University 38-4042-235-36257
2.1 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,752 | 773 |
| San Andres | 2,107 | 418 |
| Clear Fork | 3,304 | -779 |
| Spraberry | 4,559 | -2,034 |
| Wolfcamp | 5,805 | -3,280 |
| Canyon | — | |
| Fusselman | — |
Linthicum C42-235-36260
2.8 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,500 | 991 |
| San Andres | 2,000 | 491 |
| Clear Fork | 4,400 | -1,909 |
| Spraberry | 4,700 | -2,209 |
| Wolfcamp | 6,229 | -3,738 |
| Fusselman | — | |
| Canyon | — |
Linthicum C42-235-36259
2.8 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,500 | 991 |
| San Andres | 2,000 | 491 |
| Clear Fork | 4,400 | -1,909 |
| Spraberry | 4,700 | -2,209 |
| Wolfcamp | 6,671 | -4,180 |
| Canyon | — | |
| Fusselman | — |
University 38-4042-235-36264
3.0 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,070 | 1,456 |
| San Andres | 1,889 | 637 |
| Clear Fork | 2,244 | 282 |
| Spraberry | 3,441 | -915 |
| Wolfcamp | 6,710 | -4,184 |
| Canyon | — | |
| Fusselman | — |
University 38-4042-235-36263
3.0 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,070 | 1,484 |
| San Andres | 1,889 | 665 |
| Clear Fork | 3,441 | -887 |
| Spraberry | 4,696 | -2,142 |
| Wolfcamp | 6,274 | -3,720 |
| Fusselman | — | |
| Canyon | — |
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/23536437, documented in the API reference.