WELL · 42-389-37717 · DISTRICT 8

Warlander #504WB

Y

Reeves County · Hoefs T-K (Wolfcamp) field · Producing  · Horizontal

Warlander #504WB (API 42-389-37717) is a horizontal well in Reeves County operated by Diamondback E&P LLC, completed March 20, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued October 24, 2018, permitted to 12,399 ft.

Completion filings report 8 formation tops, including Bell Canyon, Cherry Canyon, Bone Spring, Wolfcamp.

Its lease has reported 1.72M barrels of oil and 7.08M mcf of gas since August 2018, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiamondback E&P LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitDiamondback E&P LLCOct 24, 2018
12,399
total depth, ft
2
permits on file
Oct 24, 2018
last permit issued
Mar 20, 2019
completed
1.72M
cumulative oil, bbl
7.08M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 20, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.348844, -103.215514

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Reeves 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 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Warlander O-10-51176Hoefs T-K (Wolfcamp)Diamondback E&P LLC61.72M7.08MAug 2018 – Jul 2026

Gas, mcf lease total

Last 12 months 632,407 · prior 12 777,211(-19%)

050K100K202420252026

Oil, barrels lease total

Last 12 months 101,008 · prior 12 105,908(-5%)

05K10K15K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCAug 2018 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
846101-98DrillDiamondback E&P LLCNov 26, 2018Oct 24, 2018Nov 12, 201812,399
846101-99DrillDiamondback E&P LLCOct 23, 2018Oct 24, 2018Nov 12, 201812,399

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-51176————

Formation tops

As filed on W-2/G-1. Subsea from 2,594 ft elevation.Download CSV →

FormationMD ftSubsea
Bell Canyon5,016-2,422
Cherry Canyon5,872-3,278
Bone SpringBONE SPRINGS7,957-5,363
Wolfcamp10,592-7,998
CastileCASTILLE——
Delaware——
DelawareDELAWARE CONSOLIDATED GAS——
DelawareFORD-DELAWARE——
Pennsylvanian——
Permian (undifferentiated)PERMIAN——

Perforations

Perforated and open-hole intervals.

FromToType
11,40621,207Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3752,292162,605 S
9.62510,73312.252,115 S
5.521,3898.54,355 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
00Sep 25, 2019Jul 2, 2019Yes

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 →

Warlander42-389-37718

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

Bell Canyon5,028-2,434
Cherry Canyon5,888-3,294
Bone Spring7,975-5,381
Delaware—
Pennsylvanian—
Delaware—
Delaware—
Castile—

10 TOPS · FIRST 8

Warlander42-389-35804

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

Delaware4,995-2,403
Bone Spring5,130-2,538
Wolfcamp10,582-7,990
Delaware—
Bell Canyon—
Castile—
Cherry Canyon—
Delaware—

10 TOPS · FIRST 8

Warlander East42-389-36714

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

Delaware4,997-2,406
Bell Canyon5,027-2,436
Cherry Canyon5,882-3,291
Bone Spring8,074-5,483
Wolfcamp10,562-7,971
Delaware—
Castile—
Delaware—

10 TOPS · FIRST 8

Warlander42-389-37087

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

Delaware4,997-2,409
Bell Canyon5,027-2,439
Cherry Canyon5,882-3,294
Bone Spring8,074-5,486
Wolfcamp10,562-7,974
Pennsylvanian—
Permian (undifferentiated)—
Castile—

10 TOPS · FIRST 8

State Brumby 6-A42-389-37126

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

Bell Canyon5,000-2,412
Cherry Canyon5,861-3,273
Bone Spring8,131-5,543
Wolfcamp10,625-8,037
Delaware—
Delaware—
Castile—
Pennsylvanian—

10 TOPS · FIRST 8

Warlander42-389-38002

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

Delaware5,005-2,417
Bell Canyon5,028-2,440
Cherry Canyon5,888-3,300
Bone Spring7,982-5,394
Permian (undifferentiated)—
Pennsylvanian—
Delaware—
Delaware—

11 TOPS · FIRST 8

State Brumby 6-B42-389-38029

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

Bell Canyon5,002-2,414
Bone Spring7,991-5,403
Wolfcamp10,574-7,986
Cherry Canyon59,902-57,314
Permian (undifferentiated)—
Pennsylvanian—
Delaware—
Delaware—

10 TOPS · FIRST 8

Waler State Unit 442-389-35573

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

Castile3,000-438
Delaware5,007-2,445
Bell Canyon5,038-2,476
Cherry Canyon5,808-3,246
Bone Spring8,147-5,585
Wolfcamp10,587-8,025
Permian (undifferentiated)—
Pennsylvanian—

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/38937717, documented in the API reference.