WELL · 42-461-34345 · DISTRICT 7

University 21 #1

N

Upton County · Benedum (Devonian Gas) field  · Horizontal

University 21 #1 (API 42-461-34345) is a horizontal well in Upton County operated by Xri Disposal Holdings LLC, completed May 6, 2021.

The RRC has issued 2 drilling permits (amended once) between 2002 and 2023, permitted to 12,000 ft.

Completion filings report 15 formation tops, including Yates, Grayburg, San Andres, Clear Fork.

No lease production has been reported under this well’s leases.

It holds an active disposal or injection permit, with 3.26M barrels injected in the 12 months reported through November 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

Operator of record

Xri Disposal Holdings LLC

Midland, TX · P-5 Y, filed Mar 4, 2026 · 15 permits on file · (888) 252-0320

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleXri Disposal Holdings LLC
Production reportsHibernia Resources III, LLCthrough Apr 2021
Latest permitXri Disposal Holdings, LLCAug 28, 2023

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
3
permits on file
Aug 28, 2023
last permit issued
May 6, 2021
completed
0
cumulative oil, bbl
114K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2003 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 6, 2021
Shut in
—
Plugged
—

Surface location

31.252708, -101.807778

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Upton County.

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University "21" O-9-22490Spraberry (Trend Area)Xri Disposal Holdings, LLC100Jun 2023 – Jul 2026
University "21" G-9-196868Benedum (Devonian, Gas)Xri Disposal Holdings, LLC10114KJun 2003 – Jun 2023

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Pure Resources, L.P.Jun 2003 → Mar 2006
  2. 2Chevron Midcontinent, L.P.Apr 2006 → Nov 2018
  3. 3Hibernia Resources III, LLCDec 2018 → Apr 2021

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
891865-99RecompletionXri Disposal Holdings, LLCJul 6, 2023Aug 28, 2023Dec 2, 20026,000
524890-98DrillPure Resources, L.P.Nov 8, 2002Oct 23, 2002Dec 2, 200212,000
524890-99DrillPure Resources, L.P.Oct 23, 2002Oct 23, 2002—12,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-9-196868————
—— O-9-22490————

Formation tops

As filed on W-2/G-1. Subsea from 2,719 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,200519
Grayburg3,535-816
San AndresSAN ANDRES - SALTWATER FLOW3,798-1,079
Grayburg3,832-1,113
San Andres4,086-1,367
Clear ForkCLEARFORK4,719-2,000
Glorieta4,881-2,162
Spraberry6,665-3,946
Spraberry6,676-3,957
JO Miill7,530-4,811
Dean7,927-5,208
Dean8,046-5,327
Wolfcamp8,262-5,543
Strawn10,271-7,552
Atoka10,410-7,691
Barnet10,766-8,047
Barnett10,766-8,047
Devonian11,244-8,525
Devonian11,250-8,531
Fusselman11,853-9,134

Perforations

Perforated and open-hole intervals.

FromToType
3,8325,200Perforated
11,68815,894Perforated
11,90014,658Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37553017.5450 S
9.6253,78512.251,450 S
711,4118.751,315 S
711,4119.751,315 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
00Apr 24, 2024Nov 21, 2023—
00Jun 30, 2021Jun 8, 2021Yes
00Mar 18, 2004Jan 12, 2004—
00Oct 23, 2003Jul 16, 2003Yes
00Oct 2, 2003——

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 W3-169E42-461-41085

2.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,231503
Grayburg3,697-963
San Andres3,984-1,250
Spraberry6,706-3,972
Wolfcamp8,224-5,490
Fusselman—
Strawn—
Devonian—

9 TOPS · FIRST 8

University W3-169D42-461-41084

2.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,223485
Grayburg3,702-994
San Andres3,979-1,271
Spraberry6,695-3,987
Wolfcamp8,221-5,513
Strawn—
Devonian—
Ellenburger—

9 TOPS · FIRST 8

University W3-169B42-461-41082

2.2 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,218518
Grayburg3,683-947
San Andres3,993-1,257
Spraberry7,242-4,506
Wolfcamp8,223-5,487
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

University W3-169A42-461-41081

2.2 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,220514
Grayburg3,696-962
San Andres4,003-1,269
Spraberry6,722-3,988
Wolfcamp8,235-5,501
Strawn—
Devonian—
Fusselman—

9 TOPS · FIRST 8

UL Leighton F42-461-42037

2.6 KM · Hibernia Resources III, LLC · Section with this well →

Yates2,144565
Grayburg3,434-725
San Andres4,122-1,413
Spraberry6,539-3,830
Wolfcamp7,976-5,267
Devonian—
Strawn—
Fusselman—

9 TOPS · FIRST 8

UL Leighton E42-461-42036

2.6 KM · Hibernia Resources III, LLC · Section with this well →

Yates2,146563
Grayburg3,438-729
San Andres4,126-1,417
Spraberry6,542-3,833
Wolfcamp7,978-5,269
Strawn—
Devonian—
Ellenburger—

9 TOPS · FIRST 8

UL Leighton D42-461-42035

2.6 KM · Hibernia Resources III, LLC · Section with this well →

Yates2,144565
Grayburg3,438-729
San Andres4,135-1,426
Spraberry6,537-3,828
Wolfcamp7,968-5,259
Ellenburger—
Fusselman—
Strawn—

9 TOPS · FIRST 8

UL Leighton C42-461-42034

2.6 KM · Hibernia Resources III, LLC · Section with this well →

Yates2,148561
Grayburg3,441-732
San Andres4,141-1,432
Spraberry6,532-3,823
Wolfcamp7,957-5,248
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

3.26M
bbl, last 12 reported months
12.2M
bbl, all reported
Nov 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000122659W-14 DisposalActive60,0001,9163,832–5,225

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 3,264,107 · prior 12 4,124,176(-21%)

0500K1M20242025

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

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/46134345, documented in the API reference.