WELL · 42-317-41419 · DISTRICT 8

WRS Hesperaloe F #4AA

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Martin County · Spraberry (Trend Area) field · Producing  · Horizontal

Wrs Hesperaloe F #4AA (API 42-317-41419) is a horizontal well in Martin County operated by Oxyrock Operating LLC, completed December 19, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 22, 2018, permitted to 10,000 ft.

It was permitted by Crownquest Operating, LLC and has since transferred to Oxyrock Operating LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Grayburg, San Andres, Dean, Wolfcamp.

Its lease has reported 895K barrels of oil and 1.82M mcf of gas since December 2018, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Oxyrock Operating LLC

Permitted by Crownquest Operating, LLC; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Apr 22, 2026
Permits on file
392
Phone
(713) 215-7000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOxyrock Operating LLC
Production reportsOxyrock Operating, LLCthrough Apr 2026
Latest permitCrownquest Operating, LLCJun 22, 2018

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

10,000
total depth, ft
1
permits on file
Jun 22, 2018
last permit issued
Dec 19, 2018
completed
895K
cumulative oil, bbl
1.82M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 19, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

32.218508, -101.693433

Google Maps ↗

Permit surface location from the RRC GIS record, in Martin 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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
WRS Hesperaloe F O-10-51820Spraberry (Trend Area)Oxyrock Operating, LLC2895K1.82MDec 2018 – Jul 2026

Oil, barrels lease total

Last 12 months 31,833 · prior 12 41,194(-23%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 188,045 · prior 12 224,976(-16%)

010K20K30K202420252026

Chain of custody

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

  1. 1Crownquest Operating, LLCDec 2018 → Jul 2024
  2. 2Oxyrock Operating, LLCAug 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
839381-99DrillCrownquest Operating, LLCApr 27, 2018Jun 22, 2018Jun 27, 201810,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-51820————

Formation tops

As filed on W-2/G-1. Subsea from 2,482 ft elevation.Download CSV →

FormationMD ftSubsea
Grayburg3,374-892
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H3,693-1,211
Dean7,884-5,402
Wolfcamp8,082-5,600
Mississippian——
Pennsylvanian——
Queen——
Santa Rosa——
Strawn——
Yates——

Perforations

Perforated and open-hole intervals.

FromToType
8,62218,774Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,01117.51,100 S
9.6258,37212.25200 S
5.518,9758.52,775 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
00Jul 26, 2019Apr 23, 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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

WRS Hesperaloe E42-317-41443

0.0 KM · Crownquest Operating, LLC · Section with this well →

Grayburg3,366-874
San Andres3,686-1,194
Spraberry6,556-4,064
Dean7,878-5,386
Wolfcamp8,052-5,560
Santa Rosa—
Queen—
Pennsylvanian—

10 TOPS · FIRST 8

WRS Hesperaloe42-317-41418

0.0 KM · Crownquest Operating, LLC · Section with this well →

Grayburg3,353-862
San Andres3,660-1,169
Spraberry6,550-4,059
Dean7,898-5,407
Wolfcamp8,051-5,560
Santa Rosa—
Cisco—
Pennsylvanian—

10 TOPS · FIRST 8

WRS Hesperaloe F42-317-41420

0.3 KM · Crownquest Operating, LLC · Section with this well →

Grayburg3,374-881
San Andres3,677-1,184
Spraberry6,563-4,070
Dean7,872-5,379
Wolfcamp8,064-5,571
Santa Rosa—
Pennsylvanian—
Cisco—

10 TOPS · FIRST 8

WRS Hesperaloe42-227-39599

0.3 KM · Crownquest Operating, LLC · Section with this well →

San Andres3,685-1,194
Glorieta4,420-1,929
Clear Fork5,270-2,779
Spraberry6,545-4,054
Dean7,863-5,372
Wolfcamp8,042-5,551
Leonard—
Coleman Junction—

10 TOPS · FIRST 8

Green Sprangletop C42-227-39596

1.0 KM · Crownquest Operating, LLC · Section with this well →

San Andres3,635-1,162
Glorieta4,469-1,996
Clear Fork5,281-2,808
Spraberry6,538-4,065
Dean7,841-5,368
Wolfcamp7,986-5,513
Coleman Junction—
Seven Rivers—

10 TOPS · FIRST 8

Green Sprangletop42-227-39594

1.0 KM · Crownquest Operating, LLC · Section with this well →

San Andres3,596-1,123
Glorieta4,447-1,974
Clear Fork5,228-2,755
Spraberry6,490-4,017
Dean7,804-5,331
Wolfcamp7,965-5,492
Leonard—
Seven Rivers—

10 TOPS · FIRST 8

Madison-Hamill 36D42-317-43218

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

Santa Rosa7001,819
Yates1,972547
Queen2,777-258
Grayburg3,183-664
San Andres3,370-851
Spraberry6,502-3,983
Dean7,865-5,346
Wolfcamp8,028-5,509

10 TOPS · FIRST 8

Madison-Hamill 36C42-317-43217

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

Santa Rosa7061,813
Yates1,963556
Queen2,789-270
Grayburg3,210-691
San Andres3,397-878
Spraberry6,540-4,021
Dean7,894-5,375
Wolfcamp8,047-5,528

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/31741419, documented in the API reference.