Petrora

WELL · 42-103-33430 · DISTRICT 8

University J #1

N

Crane County  · Vertical

University J #1 (API 42-103-33430) is a former disposal or injection well in Crane County, last operated by Seguro Oil And Gas, LLC; its UIC permit is no longer active.

The RRC has issued 3 drilling permits between 1984 and 2017, permitted to 11,500 ft.

Completion filings report 13 formation tops, including Rustler, Yates, Grayburg, Clear Fork.

Its 2 leases have reported 26.5K barrels of oil and 115K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Seguro Oil and Gas, LLC

Midland, TX · P-5 Y, filed Apr 5, 2024 · 11 permits on file · (432) 219-0740

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsR3 Operating Corporationthrough Apr 2026
Latest permitSeguro Oil and Gas, LLCNov 10, 2017
11,500
total depth, ft
3
permits on file
Nov 10, 2017
last permit issued
—
completed
26.5K
cumulative oil, bbl
115K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

31.527923, -102.326869

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Crane 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 "J" O-10-29298Buster (Bend Conglomerate)R3 Operating Corporation13.43K43.2KJan 1993 – Jul 2026
University "J" O-10-36685McElroy, North (Devonian)R3 Operating Corporation123.1K71.4KJul 2001 – Jul 2026

Oil, barrels lease total

Last 12 months 1,103 · prior 12 1,128(-2%)

0100200202420252026

Gas, mcf lease total

Last 12 months 2,448 · prior 12 2,070(+18%)

0200400202420252026

Chain of custody

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

  1. 1Mewbourne Oil CompanyJan 1993 → Aug 1996
  2. 2Endeavor Energy Resources L.P.Jul 2001 → Jul 2001
  3. 3Bettis, Boyle & StovallAug 2001 → Sep 2005
  4. 4Baker Operating, Inc.Oct 2005 → Jan 2017
  5. 5Seguro Oil and Gas, LLCFeb 2017 → Nov 2022
  6. 6Boaz Energy II Operating, LLCDec 2022 → Mar 2025
  7. 7T2 Operating CorporationApr 2025 → Jul 2025
  8. 8R3 Operating CorporationAug 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
832779-99RecompletionSeguro Oil and Gas, LLCNov 3, 2017Nov 10, 2017—11,410
501803-99RecompletionEndeavor Energy Resources L.P.Nov 9, 2000Nov 9, 2000Oct 3, 200011,410
232202-99DrillMewbourne Oil Co.Jun 18, 1984Mar 13, 1984—11,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-29298————
—— O-10-36685————

Formation tops

As filed on W-2/G-1. Subsea from 2,691 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler1,5401,151
Yates2,718-27
Grayburg4,160-1,469
Clear ForkCLEARFORK6,008-3,317
Tubb6,428-3,737
Wolfcamp7,692-5,001
Cisco8,100-5,409
Canyon8,246-5,555
PennsylvanianPENN LIME8,246-5,555
Strawn8,801-6,110
BendBEND CONGLOMERATE9,114-6,423
PennsylvanianPENN DETRITAL9,278-6,587
BarnettBARNETT SHALE9,398-6,707
WoodfordWOODFORD SHALE10,030-7,339

Perforations

Perforated and open-hole intervals.

FromToType
9,1209,138Perforated
10,17810,274Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37545217.5450 S
8.6254,345111,800 S
5.59,4057.875550 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
00Oct 4, 2001Aug 13, 2001Yes
00Sep 4, 2001——
00Feb 11, 1998Oct 23, 1997—
00Nov 8, 1984Oct 24, 1984—
00Nov 1, 1984——

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 →

UL Anthem May a 13-142-103-36728

0.2 KM · Diamondback E&P LLC · Section with this well →

Rustler1,5561,131
Yates2,753-66
Seven Rivers2,913-226
Queen3,807-1,120
Grayburg4,208-1,521
San Andres4,449-1,762
Glorieta6,468-3,781
Clear Fork6,913-4,226

10 TOPS · FIRST 8

UL Lonetree 22303 a 23-2642-103-37421

1.9 KM · BTA Oil Producers, LLC · Section with this well →

Rustler1,5191,125
Yates2,6413
Seven Rivers2,884-240
Queen3,538-894
Grayburg3,852-1,208
San Andres3,852-1,208
Glorieta6,143-3,499
Permian (undifferentiated)—

10 TOPS · FIRST 8

UL Lonetree 22303 B 23-2642-103-37422

1.9 KM · BTA Oil Producers, LLC · Section with this well →

Rustler1,5191,124
Yates2,6412
Seven Rivers2,884-241
Queen3,538-895
San Andres3,852-1,209
Glorieta6,143-3,500
Grayburg—
San Angelo—

10 TOPS · FIRST 8

University B42-103-31046

2.0 KM · WJC, Inc. · Section with this well →

Tubb6,213-3,562
Wolfcamp7,337-4,686
Cisco7,981-5,330
Canyon8,131-5,480
Strawn8,717-6,066
Bend8,927-6,276
Woodford9,647-6,996
Devonian9,945-7,294

16 TOPS · FIRST 8

UL Fisherman 22303 C 23-2642-103-37590

2.9 KM · BTA Oil Producers, LLC · Section with this well →

Rustler1,3981,233
Yates2,425206
Seven Rivers2,61615
San Andres3,454-823
Glorieta5,826-3,195
San Angelo—
Queen—
Permian (undifferentiated)—

10 TOPS · FIRST 8

UL Fisherman 22303 D 23-2642-103-37591

2.9 KM · BTA Oil Producers, LLC · Section with this well →

Rustler1,3731,258
Yates2,413218
Seven Rivers2,61021
Grayburg3,442-811
Glorieta5,585-2,954
San Andres—
Queen—
Permian (undifferentiated)—

10 TOPS · FIRST 8

University A42-103-33399

3.3 KM · Thompson, J. Cleo · Section with this well →

San Andres3,496-883
Cisco7,958-5,345
Pen Detrital8,882-6,269
Pennsylvanian8,882-6,269
Devonian9,909-7,296
Fusselman10,923-8,310
Ellenburger11,952-9,339

UL Cazador 15/3 A42-103-37560

3.6 KM · Mewbourne Oil Company · Section with this well →

Rustler1,2891,331
Yates2,313307
Seven Rivers2,55763
Queen3,116-496
Grayburg3,306-686
Montoya—
Precambrian (Undifferentiated)—
Waddell—

10 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
Jun 2014
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000086114W-14 DisposalNot activated1,5008505,310–5,560

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

Last 12 months 0 · prior 12 0

0120132014

TexNet catalog via USGS

Seismicity near this well

1
M2+ events within 10 km, last 2 years
M2.0
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/10333430, documented in the API reference.