WELL · 42-383-41380 · DISTRICT 7

University 27-34 #03WA

Y

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

University 27-34 #03WA (API 42-383-41380) is a horizontal well in Reagan County operated by Sem Operating Company LLC, completed August 13, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 20, 2023, permitted to 10,000 ft.

Completion filings report 9 formation tops, including San Andres, Clear Fork, Spraberry, Wolfcamp.

Its lease has reported 2.17M barrels of oil and 6.31M mcf of gas since September 2014, last reporting in July 2026. The lease carries 13 wells, so these are lease totals, not this well alone.

Operator of record

Sem Operating Company LLC

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 scheduleSem Operating Company LLC
Production reportsSem Operating Company LLCthrough Apr 2026
Latest permitSem Operating Company LLCApr 20, 2023
10,000
total depth, ft
1
permits on file
Apr 20, 2023
last permit issued
Aug 13, 2023
completed
2.17M
cumulative oil, bbl
6.31M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 13, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

31.272250, -101.716963

Google Maps ↗

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 27-34 O-9-18756Lin (Wolfcamp)Sem Operating Company LLC132.17M6.31MSep 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 272,666 · prior 12 477,779(-43%)

050K100K202420252026

Gas, mcf lease total

Last 12 months 1,138,439 · prior 12 1,280,971(-11%)

050K100K150K202420252026

Chain of custody

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

  1. 1Callon Petroleum Operating CoDec 2014 → May 2019
  2. 2Sem Operating Company LLCJun 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
889791-99DrillSem Operating Company LLCApr 14, 2023Apr 20, 2023Apr 24, 202310,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-18756————

Formation tops

As filed on W-2/G-1. Subsea from 2,678 ft elevation.Download CSV →

FormationMD ftSubsea
San AndresSAN ANDRES - SALTWATER FLOW, POS4,260-1,582
Clear ForkCLEARFORK5,294-2,616
Spraberry6,391-3,713
Wolfcamp8,216-5,538
Ellenburger——
Fusselman——
Grayburg——
Queen——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
8,76216,544Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37565017.5975 S
9.6257,58512.25805 S
5.516,6328.752,630 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
00Dec 12, 2023Nov 17, 2023Yes

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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

University 27-3442-383-41381

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

San Andres4,274-1,626
Clear Fork5,308-2,660
Spraberry6,405-3,757
Wolfcamp8,497-5,849
Ellenburger—
Strawn—
Queen—
Grayburg—

9 TOPS · FIRST 8

University 27-3442-383-41379

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

San Andres4,280-1,602
Clear Fork5,314-2,636
Spraberry6,411-3,733
Wolfcamp8,155-5,477
Grayburg—
Ellenburger—
Queen—
Fusselman—

9 TOPS · FIRST 8

University 27-3442-383-41526

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

San Andres4,217-1,561
Clear Fork5,251-2,595
Spraberry6,348-3,692
Wolfcamp9,826-7,170
Queen—
Strawn—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

University 27-3442-383-41527

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

San Andres4,231-1,575
Clear Fork5,265-2,609
Spraberry6,362-3,706
Wolfcamp7,931-5,275
Fusselman—
Strawn—
Queen—
Ellenburger—

9 TOPS · FIRST 8

University 27-3442-383-41525

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

San Andres4,217-1,561
Clear Fork5,251-2,595
Spraberry6,348-3,692
Wolfcamp9,826-7,170
Strawn—
Fusselman—
Grayburg—
Queen—

9 TOPS · FIRST 8

University 27-3442-383-41552

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

San Andres4,228-1,573
Clear Fork5,262-2,607
Spraberry6,359-3,704
Wolfcamp8,281-5,626
Strawn—
Ellenburger—
Fusselman—
Grayburg—

9 TOPS · FIRST 8

University 27-3442-383-41553

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

San Andres4,214-1,559
Clear Fork5,248-2,593
Spraberry6,345-3,690
Wolfcamp7,914-5,259
Strawn—
Ellenburger—
Grayburg—
Queen—

9 TOPS · FIRST 8

University 35-19A42-383-41695

2.3 KM · Civitas Permian Operating, LLC · Section with this well →

Queen2,925-274
Grayburg3,495-844
San Andres3,988-1,337
Clear Fork5,509-2,858
Spraberry6,316-3,665
Strawn—
Ellenburger—
Fusselman—

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/38341380, documented in the API reference.