WELL · 42-235-36222 · DISTRICT 7

University 43 #1016WB

Y

Irion County · Lin (Wolfcamp) field · Producing  · Horizontal

University 43 #1016WB (API 42-235-36222) is a horizontal well in Irion County operated by Sem Operating Company LLC, completed April 6, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 24, 2017, permitted to 10,000 ft.

Completion filings report 7 formation tops, including Grayburg, San Andres, Clear Fork, Spraberry.

Its lease has reported 2.37M barrels of oil and 39.8M mcf of gas since January 2011, last reporting in July 2026. The lease carries 30 wells, so these are lease totals, not this well alone.

Operator of record

Sem Operating Company LLC

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 scheduleSem Operating Company LLC
Production reportsSem Operating Company LLCthrough Apr 2026
Latest permitSem Operating Company LLCOct 24, 2017
10,000
total depth, ft
1
permits on file
Oct 24, 2017
last permit issued
Apr 6, 2018
completed
2.37M
cumulative oil, bbl
39.8M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 6, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

31.127308, -101.218144

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 30 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 43 O-9-17569Lin (Wolfcamp)Sem Operating Company LLC302.37M39.8MJan 2011 – Jul 2026

Gas, mcf lease total

Last 12 months 3,882,522 · prior 12 3,706,865(+5%)

0200K400K202420252026

Oil, barrels lease total

Last 12 months 191,266 · prior 12 96,935(+97%)

050K100K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1EOG Resources, Inc.Jan 2011 → May 2016
  2. 2Sem Operating Company LLCJun 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
831944-99DrillSem Operating Company LLCOct 12, 2017Oct 24, 2017Dec 16, 201710,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17569————

Formation tops

As filed on W-2/G-1. Subsea from 2,654 ft elevation.Download CSV →

FormationMD ftSubsea
Grayburg1,2361,418
San Andres2,870-216
Clear ForkCLEARFORK3,703-1,049
Spraberry5,687-3,033
Wolfcamp6,558-3,904
Canyon——
Fusselman——

Perforations

Perforated and open-hole intervals.

FromToType
7,37515,152Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62585012.25675 S
5.515,2478.753,145 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jul 13, 2018Jun 21, 2018Yes

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.

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.

Open the cross-section →

University 4342-235-36223

0.0 KM · Sem Operating Company LLC · Section with this well →

Grayburg1,2361,418
San Andres2,870-216
Clear Fork3,703-1,049
Spraberry4,971-2,317
Wolfcamp6,558-3,904
Fusselman—
Canyon—

University 4342-235-36691

0.3 KM · Sem Operating Company LLC · Section with this well →

San Andres2,396258
Clear Fork3,469-815
Spraberry4,812-2,158
Wolfcamp6,983-4,329
Fusselman—
Grayburg—
Canyon—

University 4342-235-36693

0.3 KM · Sem Operating Company LLC · Section with this well →

San Andres2,406248
Clear Fork3,479-825
Spraberry4,822-2,168
Wolfcamp6,993-4,339
Grayburg—
Canyon—
Fusselman—

University 4342-235-36692

0.3 KM · Sem Operating Company LLC · Section with this well →

San Andres2,387267
Clear Fork3,460-806
Spraberry4,803-2,149
Wolfcamp6,568-3,914
Canyon—
Grayburg—
Fusselman—

University 4342-235-36220

1.2 KM · Sem Operating Company LLC · Section with this well →

Grayburg1,2361,436
San Andres1,992680
Clear Fork3,703-1,031
Spraberry5,687-3,015
Wolfcamp6,558-3,886
Canyon—
Fusselman—

University 4342-235-36221

1.2 KM · Sem Operating Company LLC · Section with this well →

Grayburg1,2361,436
San Andres2,870-198
Clear Fork3,703-1,031
Spraberry5,687-3,015
Wolfcamp6,558-3,886
Fusselman—
Canyon—

Missie42-235-36245

2.3 KM · FDL Operating, LLC · Section with this well →

Grayburg1,682923
San Andres1,874731
Spraberry4,829-2,224
Wolfcamp6,268-3,663
Fusselman—
Clear Fork—
Canyon—

University 4342-235-36575

2.3 KM · Sem Operating Company LLC · Section with this well →

San Andres2,371243
Clear Fork3,444-830
Spraberry4,787-2,173
Wolfcamp6,958-4,344
Canyon—
Fusselman—
Grayburg—

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/23536222, documented in the API reference.