WELL · 42-495-33880 · DISTRICT 8

University B21 8 #W101CN

Y

Winkler County · Phantom (Wolfcamp) field · Producing  · Horizontal

University B21 8 #W101CN (API 42-495-33880) is a horizontal well in Winkler County operated by Mewbourne Oil Company, completed October 9, 2017 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued July 5, 2017, permitted to 13,000 ft.

Completion filings report 10 formation tops, including Delaware, Rustler, Clear Fork, Colby-Queen.

Its lease has reported 1.45M barrels of oil and 1.26M mcf of gas since November 2016, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Mewbourne Oil Company

Tyler, TX · P-5 Y, filed May 4, 2026 · 2,059 permits on file · (903) 561-2900

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMewbourne Oil Company
Production reportsMewbourne Oil Companythrough Apr 2026
Latest permitMewbourne Oil CompanyJul 5, 2017
13,000
total depth, ft
1
permits on file
Jul 5, 2017
last permit issued
Oct 9, 2017
completed
1.45M
cumulative oil, bbl
1.26M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2016 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 9, 2017
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

31.753715, -103.259621

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Winkler 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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University B21 8 O-10-48089Phantom (Wolfcamp)Mewbourne Oil Company41.45M1.26MNov 2016 – Jul 2026

Oil, barrels lease total

Last 12 months 81,630 · prior 12 90,804(-10%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 73,069 · prior 12 83,145(-12%)

05K10K15K202420252026

Chain of custody

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

  1. 1Mewbourne Oil CompanyNov 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
828344-99DrillMewbourne Oil CompanyJun 28, 2017Jul 5, 2017Jul 21, 201713,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-48089————

Formation tops

As filed on W-2/G-1. Subsea from 2,838 ft elevation.Download CSV →

FormationMD ftSubsea
Delaware5712,267
RustlerRUSTLER - POSSIBLE FLOW; POSSIBL8601,978
Clear ForkCLEARFORK——
Colby-Queen——
Glorieta——
Holt——
QueenQUEEN-SEVEN RIVERS——
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO——
Wichita-AlbanyWICHITA ALBANY——
Yates——

Perforations

Perforated and open-hole intervals.

FromToType
12,29216,800Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37597317.5800 S
9.6255,07612.251,450 S
712,2888.75700 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
00Feb 8, 2018Nov 17, 2017Yes

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 B21 842-495-34204

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

Rustler8032,051
Delaware5,148-2,294
Wichita-Albany—
San Andres—
Queen—
Holt—
Glorieta—
Colby-Queen—

10 TOPS · FIRST 8

University B21 842-495-34202

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

Rustler8182,036
Delaware5,175-2,321
Queen—
Yates—
Wichita-Albany—
San Andres—
Clear Fork—
Colby-Queen—

10 TOPS · FIRST 8

University B21 542-495-33966

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

Rustler8502,006
Delaware5,174-2,318
Glorieta—
Wichita-Albany—
Yates—
Holt—
Clear Fork—
Colby-Queen—

10 TOPS · FIRST 8

University B21 542-495-33990

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

Delaware5,230-2,374
Cherry Canyon6,270-3,414
Brushy Canyon7,574-4,718
Bone Spring9,043-6,187
Glorieta—
San Andres—
Holt—
Wichita-Albany—

10 TOPS · FIRST 8

UL Pahaska 21-642-495-34657

0.9 KM · Percussion Petroleum Oper Ii,llc · Section with this well →

Delaware5,196-2,361
Seven Rivers—
Capitan—
Clear Fork—
Colby / Queen—
Glorieta—
Holt—
Rustler—

10 TOPS · FIRST 8

UL Pahaska 21-642-495-34658

0.9 KM · Percussion Petroleum Oper Ii,llc · Section with this well →

Delaware5,205-2,369
Bone Spring10,881-8,045
Yates—
Capitan—
Colby / Queen—
Glorieta—
Holt—
Rustler—

10 TOPS · FIRST 8

University 21-6 E42-495-33238

1.2 KM · Percussion Petroleum Oper Ii,llc · Section with this well →

Bone Spring8,965-6,133
BSPG18,967-6,135
Bone Spring9,998-7,166
BSPG210,000-7,168
Bone Spring10,808-7,976
BSPG310,811-7,979
Phantom (Wolfcamp)11,715-8,883
Bspg Target12,246-9,414

UL Pahaska 21-642-495-34683

1.6 KM · Percussion Petroleum Oper Ii,llc · Section with this well →

Delaware5,195-2,367
Clear Fork—
Capitan—
Yates—
Seven Rivers—
San Andres—
Rustler—
Holt—

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/49533880, documented in the API reference.