WELL · 42-383-40988 · DISTRICT 7
University 2-58 #2503WC
Reagan County · Lin (Wolfcamp) field · Producing · Horizontal
University 2-58 #2503WC (API 42-383-40988) is a horizontal well in Reagan County operated by Sem Operating Company LLC, completed July 30, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 24, 2021, permitted to 10,000 ft.
Completion filings report 9 formation tops, including Grayburg, Queen, San Andres, Clear Fork.
Its lease has reported 2.78M barrels of oil and 8.78M mcf of gas since July 2021, last reporting in July 2026. The lease carries 16 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 23, 2026
- Permits on file
- 404
- Phone
- (713) 395-3000
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 LLCMar 24, 2021 |
- 10,000
- total depth, ft
- 1
- permits on file
- Mar 24, 2021
- last permit issued
- Jul 30, 2021
- completed
- 2.78M
- cumulative oil, bbl
- 8.78M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2021 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 30, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.287506, -101.685528
Permit surface location from the RRC GIS record, in Reagan 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 16 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 2-58 O-9-21377 | Lin (Wolfcamp) | Sem Operating Company LLC | 16 | 2.78M | 8.78M | Jul 2021 – Jul 2026 |
Oil, barrels lease total
Last 12 months 621,063 · prior 12 465,086(+34%)
Gas, mcf lease total
Last 12 months 3,245,857 · prior 12 1,838,911(+77%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sem Operating Company LLCJul 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 868612-99 | Drill | Sem Operating Company LLC | Mar 24, 2021 | Mar 24, 2021 | Apr 9, 2021 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-21377 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,616 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 1,863 | 753 |
| Queen | 2,066 | 550 |
| San AndresSAN ANDRES - SALTWATER FLOW, POS | 3,343 | -727 |
| Clear ForkCLEARFORK | 5,255 | -2,639 |
| Spraberry | 6,354 | -3,738 |
| Wolfcamp | 8,720 | -6,104 |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,480 | 19,843 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 587 | 17.5 | 625 S |
| 9.625 | 8,200 | 12.25 | 350 S |
| 5.5 | 19,943 | 8.75 | 4,450 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 | Oct 11, 2021 | Sep 23, 2021 | Yes |
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 42-383-40988 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-40988 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
University 2-5842-383-40989
0.0 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,868 | 748 |
| Queen | 2,066 | 550 |
| San Andres | 3,348 | -732 |
| Clear Fork | 5,260 | -2,644 |
| Spraberry | 6,359 | -3,743 |
| Wolfcamp | 7,956 | -5,340 |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
University 2-5842-383-40939
0.0 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 2,021 | 595 |
| San Andres | 4,344 | -1,728 |
| Clear Fork | 5,269 | -2,653 |
| Spraberry | 7,342 | -4,726 |
| Wolfcamp | 8,674 | -6,058 |
| Ellenburger | — | |
| Strawn | — | |
| Queen | — |
9 TOPS · FIRST 8
University 2-5842-383-40940
0.0 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,795 | 820 |
| Queen | 2,066 | 549 |
| San Andres | 3,431 | -816 |
| Clear Fork | 5,314 | -2,699 |
| Spraberry | 6,414 | -3,799 |
| Wolfcamp | 8,301 | -5,686 |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
University 09C42-383-40842
0.2 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 2,097 | 522 |
| Queen | 3,548 | -929 |
| San Andres | 4,464 | -1,845 |
| Clear Fork | 5,377 | -2,758 |
| Spraberry | 6,392 | -3,773 |
| Wolfcamp | 8,299 | -5,680 |
| Strawn | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
University 09C42-383-40845
0.2 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 2,131 | 488 |
| Queen | 3,582 | -963 |
| San Andres | 4,498 | -1,879 |
| Clear Fork | 5,411 | -2,792 |
| Spraberry | 7,010 | -4,391 |
| Wolfcamp | 8,338 | -5,719 |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
University 09C42-383-40843
0.2 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 2,131 | 488 |
| Queen | 3,582 | -963 |
| San Andres | 4,514 | -1,895 |
| Clear Fork | 5,427 | -2,808 |
| Spraberry | 7,026 | -4,407 |
| Wolfcamp | 8,354 | -5,735 |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
University 09C42-383-40844
0.2 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 2,131 | 488 |
| Queen | 3,582 | -963 |
| San Andres | 4,498 | -1,879 |
| Clear Fork | 5,411 | -2,792 |
| Spraberry | 6,446 | -3,827 |
| Wolfcamp | 8,358 | -5,739 |
| Ellenburger | — | |
| Fusselman | — |
9 TOPS · FIRST 8
University 2-5842-383-41746
0.5 KM · Sem Operating Company LLC · Section with this well →
| San Andres | 4,698 | -2,076 |
| Clear Fork | 5,595 | -2,973 |
| Spraberry | 6,662 | -4,040 |
| Wolfcamp | 10,239 | -7,617 |
| Queen | — | |
| Grayburg | — | |
| Fusselman | — | |
| Strawn | — |
9 TOPS · FIRST 8
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/38340988, documented in the API reference.