WELL · 42-495-33938 · DISTRICT 8

UL Mill 3427-21 #3H

Y

Winkler County · Phantom (Wolfcamp) field · Shut IN  · Horizontal

UL Mill 3427-21 #3H (API 42-495-33938) is a horizontal well in Winkler County operated by Wpx Energy Permian LLC, completed January 27, 2018 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued October 16, 2017, permitted to 14,000 ft.

Completion filings report 3 formation tops, including Cherry Canyon, Bone Spring, Wolfcamp.

Its lease has reported 4.09M barrels of oil and 5.52M mcf of gas since August 2018, last reporting in July 2026. The lease carries 10 wells, so these are lease totals, not this well alone.

Operator of record

WPX Energy Permian LLC

Oklahoma City, OK · P-5 Y, filed Sep 4, 2025 · 956 permits on file · (800) 465-8314

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleWPX Energy Permian LLC
Production reportsWPX Energy Permian, LLCthrough Mar 2026
Latest permitFelix Energy Holdings II, LLCOct 16, 2017

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

14,000
total depth, ft
2
permits on file
Oct 16, 2017
last permit issued
Jan 27, 2018
completed
4.09M
cumulative oil, bbl
5.52M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 27, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

31.693906, -103.204317

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
UL Mill 3427-21 O-10-51872Phantom (Wolfcamp)WPX Energy Permian, LLC104.09M5.52MAug 2018 – Jul 2026

Oil, barrels lease total

Last 12 months 237,631 · prior 12 316,782(-25%)

020K40K202420252026

Gas, mcf lease total

Last 12 months 325,985 · prior 12 444,735(-27%)

020K40K60K202420252026

Chain of custody

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

  1. 1Felix Energy Holdings II, LLCAug 2018 → Apr 2020
  2. 2WPX Energy Permian, LLCMay 2020 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
831665-98DrillWPX Energy Permian, LLCApr 29, 2020Oct 16, 2017Dec 18, 201713,500
831665-99DrillFelix Energy Holdings II, LLCOct 4, 2017Oct 16, 2017Dec 18, 201714,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-51872————

Formation tops

As filed on W-2/G-1. Subsea from 2,752 ft elevation.Download CSV →

FormationMD ftSubsea
Cherry Canyon6,225-3,473
Bone Spring8,352-5,600
Wolfcamp11,102-8,350

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,60717.52,100 S
10.755,16812.25840 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 9, 2024Sep 25, 2024—
00Nov 2, 2023Jul 3, 2023Yes

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 Mill 3427-2142-495-34076

0.0 KM · Felix Energy Holdings II, LLC · Section with this well →

Delaware4,992-2,240
Wichita-Albany—
San Andres—
Rustler—
Queen—
Holt—
Glorieta—
Clear Fork—

10 TOPS · FIRST 8

UL Mill 3427-2142-495-33734

0.0 KM · Felix Energy Holdings II, LLC · Section with this well →

Delaware4,984-2,234
Clear Fork—
Colby-Queen—
Glorieta—
Holt—
Queen—
Rustler—
San Andres—

10 TOPS · FIRST 8

UL Mill 3427-2142-495-33937

0.0 KM · Felix Energy Holdings II, LLC · Section with this well →

Delaware4,992-2,240
Clear Fork—
Colby-Queen—
Glorieta—
Holt—
Queen—
Rustler—
San Andres—

10 TOPS · FIRST 8

UL Mill 3427-21 D42-495-34510

0.4 KM · WPX Energy Permian, LLC · Section with this well →

Seven Rivers—
Yates—
San Andres—
Capitan—
Clear Fork—
Colby / Queen—
Delaware—
Glorieta—

11 TOPS · FIRST 8

UL Mill 3427-21 E42-495-34508

0.5 KM · WPX Energy Permian, LLC · Section with this well →

Capitan—
Clear Fork—
Colby / Queen—
Delaware—
Glorieta—
Holt—
Rustler—
San Andres—

10 TOPS · FIRST 8

UL Mill 3427-21 F42-495-34511

0.5 KM · WPX Energy Permian, LLC · Section with this well →

Capitan—
Yates—
Seven Rivers—
San Andres—
Rustler—
Holt—
Glorieta—
Delaware—

10 TOPS · FIRST 8

UL Mill 3427-21 G42-495-34512

0.6 KM · WPX Energy Permian, LLC · Section with this well →

Yates—
Capitan—
Clear Fork—
Colby / Queen—
Delaware—
Glorieta—
Holt—
Rustler—

10 TOPS · FIRST 8

UL Mill 3427-21 H42-495-34509

0.6 KM · WPX Energy Permian, LLC · Section with this well →

Yates—
Capitan—
Clear Fork—
Colby / Queen—
Delaware—
Glorieta—
Holt—
Rustler—

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/49533938, documented in the API reference.