WELL · 42-383-37343 · DISTRICT 7

University Lands 23-2 #1

N

Reagan County · Spraberry (Trend Area) field  · Vertical

University Lands 23-2 #1 (API 42-383-37343) is a well in Reagan County operated by Callon Petroleum Operating CO, completed June 7, 2012.

The RRC has issued one drilling permit (amended once), issued May 25, 2011, permitted to 12,000 ft.

It was permitted by Berry Oil Comp. and has since transferred to Callon Petroleum Operating CO on the wellbore schedule.

Completion filings report 7 formation tops, including Yates, San Andres, Spraberry, Dean.

Its 2 leases have reported 126K barrels of oil and 168K mcf of gas since September 2010, last reporting in July 2026. The leases carry 9 wells, so these are lease totals, not this well alone.

Operator of record

Callon Petroleum Operating Co

Permitted by Berry Oil Comp.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Inactive (I)
P-5 last filed
Feb 20, 2025
Permits on file
1,234
Phone
(713) 296-6000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCallon Petroleum Operating Co
Production reportsSem Operating Company LLCthrough Apr 2026
Latest permitBerry Oil Comp.May 25, 2011

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

12,000
total depth, ft
2
permits on file
May 25, 2011
last permit issued
Jun 7, 2012
completed
126K
cumulative oil, bbl
168K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jun 7, 2012
Shut in
—
Plugged
—

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 9 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 2A O-9-17301Spraberry (Trend Area)Sem Operating Company LLC691.7K128KSep 2010 – Jul 2026
University Lands 23-2 O-9-17686Spraberry (Trend Area)Callon Petroleum Operating Co333.9K40.2KAug 2011 – Mar 2015

Oil, barrels lease total

Last 12 months 5,124 · prior 12 5,955(-14%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 7,137 · prior 12 9,299(-23%)

01K2K202420252026

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Sep 2010 → Dec 2013
  2. 2Berry Oil Comp.Sep 2011 → May 2013
  3. 3Callon Petroleum Operating CoJun 2013 → May 2018
  4. 4Sem Operating Company LLCSep 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
717126-98DrillBerry Oil Comp.Jul 1, 2011May 25, 2011Jul 16, 201112,000
717126-99DrillBerry Oil Comp.May 24, 2011May 25, 2011Jul 6, 201112,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17301————
—— O-9-17686————

Formation tops

As filed on W-2/G-1. Subsea from 2,661 ft elevation.Download CSV →

FormationMD ftSubsea
Yates1,965696
San Andres2,991-330
SpraberryLOWER SPRABERRY7,246-4,585
Spraberry7,246-4,585
Dean7,612-4,951
Woldcamp7,788-5,127
Wolfcamp7,788-5,127
Strawn9,968-7,307

Perforations

Perforated and open-hole intervals.

FromToType
6,2427,738Perforated
6,24210,424Perforated
7,82010,424Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37565117.5400 S
8.6254,53011825 S
5.510,5637.875975 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
00Jan 22, 2015Mar 7, 2013—
00Sep 20, 2013Mar 7, 2013—
00Jan 30, 2013Jul 17, 2012Yes
00Jan 7, 2013Nov 7, 2011Yes

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.

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/38337343, documented in the API reference.