WELL · 42-317-43224 · DISTRICT 8

Hammer F #8DN

Y

Martin County · Spraberry (Trend Area) field · Shut IN  · Horizontal

Hammer F #8DN (API 42-317-43224) is a horizontal well in Martin County operated by Oxyrock Operating LLC, completed February 9, 2022 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued September 14, 2020, 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 Yates, Grayburg, San Andres, Spraberry.

Its lease has reported 1.02M barrels of oil and 2.8M mcf of gas since November 2021, last reporting in July 2026. The lease carries 4 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.

Houston, TX · P-5 Y, filed Mar 4, 2026 · 392 permits on file · (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, LLCSep 14, 2020

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
Sep 14, 2020
last permit issued
Feb 9, 2022
completed
1.02M
cumulative oil, bbl
2.8M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2021 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 9, 2022
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.138372, -102.005158

OpenStreetMap → ·  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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Hammer F O-10-56770Spraberry (Trend Area)Oxyrock Operating, LLC41.02M2.8MNov 2021 – Jul 2026

Oil, barrels lease total

Last 12 months 80,455 · prior 12 126,278(-36%)

010K20K202420252026

Gas, mcf lease total

Last 12 months 468,473 · prior 12 462,740(+1%)

050K100K202420252026

Chain of custody

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

  1. 1Crownquest Operating, LLCJan 2022 → Jul 2024
  2. 2Oxyrock Operating, LLCAug 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
865028-99DrillCrownquest Operating, LLCSep 9, 2020Sep 14, 2020Oct 17, 202010,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-56770————

Formation tops

As filed on W-2/G-1. Subsea from 2,778 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,71068
Grayburg4,386-1,608
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,557-1,779
Spraberry7,638-4,860
Dean8,986-6,208
Cisco——
Pennsylvanian——
Queen——
Santa Rosa——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,43419,413Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,52817.51,360 S
9.6255,67512.25640 S
5.519,5338.52,200 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
00Aug 11, 2022May 19, 2022Yes

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 →

Hammer F42-317-43225

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

Yates2,70276
Grayburg4,381-1,603
San Andres4,568-1,790
Spraberry7,633-4,855
Spraberry8,156-5,378
Dean—
Wolfcamp—
Santa Rosa—

10 TOPS · FIRST 8

Hammer F42-317-43222

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

Yates2,70672
Grayburg4,383-1,605
San Andres4,569-1,791
Spraberry7,634-4,856
Dean8,943-6,165
Wolfcamp9,202-6,424
Cisco—
Santa Rosa—

10 TOPS · FIRST 8

Hammer F42-317-43223

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

Yates2,70573
Grayburg4,385-1,607
San Andres4,555-1,777
Spraberry7,635-4,857
Pennsylvanian—
Cisco—
Dean—
Queen—

10 TOPS · FIRST 8

Hammer E42-317-43219

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

Yates2,71761
Grayburg4,398-1,620
San Andres4,569-1,791
Spraberry7,653-4,875
Dean8,979-6,201
Wolfcamp9,338-6,560
Queen—
Pennsylvanian—

12 TOPS · FIRST 8

Hammer E42-317-43220

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

Yates2,71563
Grayburg4,389-1,611
San Andres4,570-1,792
Spraberry7,649-4,871
Spraberry8,188-5,410
Cisco—
Queen—
Santa Rosa—

10 TOPS · FIRST 8

Finishing Nail 2528B42-317-40919

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

Yates2,71653
Grayburg4,397-1,628
San Andres4,565-1,796
Spraberry7,640-4,871
Santa Rosa—
Pennsylvanian—
Cisco—
Queen—

10 TOPS · FIRST 8

Finishing Nail 2528C42-317-40928

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

Yates2,67590
Grayburg4,356-1,591
San Andres4,528-1,763
Spraberry7,628-4,863
Cisco—
Wolfcamp—
Santa Rosa—
Queen—

10 TOPS · FIRST 8

Hammer E42-317-43234

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

Yates2,68683
Grayburg4,365-1,596
San Andres4,575-1,806
Glorieta5,214-2,445
Spraberry7,631-4,862
Spraberry8,140-5,371
Wolfcamp—
Santa Rosa—

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/31743224, documented in the API reference.