WELL · 42-227-41243 · DISTRICT 8

Yamaha Pacifica #4AA

Y

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

Yamaha Pacifica #4AA (API 42-227-41243) is a horizontal well in Howard County operated by Oxyrock Operating LLC, completed July 22, 2022 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued August 6, 2021, permitted to 9,000 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 Rustler, Yates, San Andres, Glorieta.

Its lease has reported 985K barrels of oil and 2.79M mcf of gas since February 2022, last reporting in July 2026. The lease carries 5 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, LLCAug 6, 2021

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

9,000
total depth, ft
1
permits on file
Aug 6, 2021
last permit issued
Jul 22, 2022
completed
985K
cumulative oil, bbl
2.79M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2022 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 22, 2022
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.288704, -101.606832

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Howard 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 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Yamaha Pacifica O-10-57615Spraberry (Trend Area)Oxyrock Operating, LLC5985K2.79MFeb 2022 – Jul 2026

Oil, barrels lease total

Last 12 months 39,597 · prior 12 103,684(-62%)

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 139,272 · prior 12 653,264(-79%)

050K100K202420252026

Chain of custody

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

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

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
871753-99DrillCrownquest Operating, LLCAug 5, 2021Aug 6, 2021Nov 3, 20219,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-57615————

Formation tops

As filed on W-2/G-1. Subsea from 2,605 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler1,2271,378
Yates1,871734
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO3,234-629
Glorieta4,040-1,435
Clear ForkCLEARFORK - SEVERE WATER FLOWS4,659-2,054
Spraberry6,438-3,833
Dean7,751-5,146
Leonard——
Santa Rosa——
Seven Rivers——

Perforations

Perforated and open-hole intervals.

FromToType
8,35018,331Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37555817.5500 S
9.6254,58712.251,225 S
5.518,4908.51,800 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
00Nov 30, 2022Sep 29, 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). 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 →

Yamaha Pacifica42-227-41241

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

Rustler1,2281,579
Yates1,873934
San Andres3,237-430
Glorieta4,040-1,233
Clear Fork4,664-1,857
Spraberry6,451-3,644
Spraberry6,950-4,143
Leonard—

10 TOPS · FIRST 8

Yamaha Pacifica42-227-41239

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

Rustler1,2221,386
Yates1,867741
San Andres3,230-622
Glorieta4,032-1,424
Clear Fork4,653-2,045
Spraberry6,431-3,823
Dean7,969-5,361
Santa Rosa—

10 TOPS · FIRST 8

Yamaha Pacifica42-227-41240

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

Rustler1,2301,380
Yates1,872738
San Andres3,235-625
Glorieta4,032-1,422
Clear Fork4,958-2,348
Spraberry6,437-3,827
Spraberry6,946-4,336
Seven Rivers—

10 TOPS · FIRST 8

Yamaha Pacifica42-227-41238

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

Rustler1,2201,391
Yates1,867744
San Andres3,230-619
Glorieta4,026-1,415
Clear Fork4,651-2,040
Spraberry6,431-3,820
Dean7,710-5,099
Santa Rosa—

10 TOPS · FIRST 8

Yamaha Pacifica E42-227-41242

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

Rustler1,2141,379
Yates1,863730
San Andres3,222-629
Glorieta4,032-1,439
Clear Fork4,653-2,060
Spraberry6,428-3,835
Seven Rivers—
Dean—

10 TOPS · FIRST 8

Yamaha Pacifica E42-227-41244

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

Rustler1,2031,389
Yates1,860732
San Andres3,220-628
Glorieta4,033-1,441
Clear Fork4,653-2,061
Spraberry6,427-3,835
Dean7,808-5,216
Santa Rosa—

10 TOPS · FIRST 8

Yamaha Pacifica E42-227-41245

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

Rustler1,2071,386
Yates1,857736
San Andres3,220-627
Glorieta4,038-1,445
Clear Fork4,652-2,059
Spraberry6,426-3,833
Spraberry6,930-4,337
Leonard—

10 TOPS · FIRST 8

Yamaha Pacifica F42-227-41246

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

Rustler1,2011,392
Yates1,856737
San Andres3,218-625
Glorieta4,036-1,443
Clear Fork4,646-2,053
Spraberry6,422-3,829
Dean—
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/22741243, documented in the API reference.