WELL · 42-383-40147 · DISTRICT 7

University 09C #3605WB

Y

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

University 09c #3605WB (API 42-383-40147) is a horizontal well in Reagan County operated by Sem Operating Company LLC, completed August 17, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 7, 2018, permitted to 10,000 ft.

Completion filings report 9 formation tops, including Grayburg, Queen, San Andres, Clear Fork.

Its lease has reported 10.1M barrels of oil and 26M mcf of gas since August 2014, last reporting in July 2026. The lease carries 40 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 LLCFeb 7, 2018
10,000
total depth, ft
1
permits on file
Feb 7, 2018
last permit issued
Aug 17, 2018
completed
10.1M
cumulative oil, bbl
26M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 17, 2018
Shut in
—
Plugged
—

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

Surface location

31.290386, -101.674437

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 09C O-9-18623Lin (Wolfcamp)Sem Operating Company LLC4010.1M26MAug 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 1,237,882 · prior 12 1,765,064(-30%)

0100K200K300K202420252026

Gas, mcf lease total

Last 12 months 6,105,555 · prior 12 5,893,277(+4%)

0200K400K600K202420252026

Chain of custody

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

  1. 1EOG Resources, Inc.Aug 2014 → May 2016
  2. 2Sem Operating Company LLCJun 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
836010-99DrillSem Operating Company LLCFeb 6, 2018Feb 7, 2018Mar 11, 201810,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-18623————

Formation tops

As filed on W-2/G-1. Subsea from 2,628 ft elevation.Download CSV →

FormationMD ftSubsea
Grayburg1,868760
Queen3,223-595
San AndresSAN ANDRES - SALTWATER FLOW, POS4,189-1,561
Clear ForkCLEARFORK5,125-2,497
Spraberry6,792-4,164
Wolfcamp8,151-5,523
Ellenburger——
Fusselman——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
8,85019,166Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37555217.5650 S
9.6257,70012.252,000 S
5.519,2658.752,645 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 10, 2018Oct 17, 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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

University 09C42-383-41082

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

Yates1,862768
San Andres4,389-1,759
Clear Fork5,254-2,624
Spraberry7,389-4,759
Wolfcamp8,719-6,089
Queen—
Ellenburger—
Fusselman—

10 TOPS · FIRST 8

University 09C42-383-41080

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

Yates1,881748
San Andres4,408-1,779
Clear Fork5,273-2,644
Spraberry7,408-4,779
Wolfcamp8,738-6,109
Grayburg—
Fusselman—
Ellenburger—

10 TOPS · FIRST 8

University 09C42-383-41079

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

Yates1,862767
San Andres4,389-1,760
Clear Fork5,254-2,625
Spraberry7,389-4,760
Wolfcamp8,139-5,510
Strawn—
Ellenburger—
Fusselman—

10 TOPS · FIRST 8

University 09C42-383-41078

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

Yates1,886743
San Andres4,413-1,784
Clear Fork5,278-2,649
Spraberry6,377-3,748
Wolfcamp8,734-6,105
Ellenburger—
Fusselman—
Queen—

10 TOPS · FIRST 8

University 9C42-383-41196

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

San Andres4,304-1,673
Clear Fork5,201-2,570
Spraberry7,311-4,680
Wolfcamp8,702-6,071
Fusselman—
Queen—
Grayburg—
Ellenburger—

9 TOPS · FIRST 8

University 2-5842-383-41271

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

San Andres4,371-1,739
Clear Fork5,268-2,636
Spraberry6,335-3,703
Wolfcamp8,131-5,499
Fusselman—
Grayburg—
Queen—
Ellenburger—

9 TOPS · FIRST 8

University 2-5842-383-41065

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

Yates1,852764
San Andres4,379-1,763
Clear Fork5,244-2,628
Spraberry7,379-4,763
Wolfcamp8,709-6,093
Grayburg—
Fusselman—
Ellenburger—

10 TOPS · FIRST 8

University 2-5842-383-41068

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

Yates1,902713
San Andres4,429-1,814
Clear Fork5,294-2,679
Spraberry6,393-3,778
Wolfcamp8,759-6,144
Grayburg—
Fusselman—
Strawn—

10 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/38340147, documented in the API reference.