WELL · 42-283-36612 · DISTRICT 1

Irvin West #441H

Y

LA Salle County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

Irvin West #441H (API 42-283-36612) is a horizontal well in La Salle County operated by Javelin Energy Partners Mgmt LLC, completed July 9, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 31, 2018, permitted to 11,000 ft.

It was permitted by Carrizo (Eagle Ford) LLC and has since transferred to Javelin Energy Partners Mgmt LLC on the wellbore schedule.

Completion filings report 11 formation tops, including Carrizo, Wilcox, Escondido, Olmos.

Its lease has reported 12M barrels of oil and 15.1M mcf of gas since June 2013, last reporting in July 2026. The lease carries 75 wells, so these are lease totals, not this well alone.

Operator of record

Javelin Energy Partners Mgmt LLC

Permitted by Carrizo (Eagle Ford) LLC; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Jan 4, 2026 · 233 permits on file · (888) 973-7780

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleJavelin Energy Partners Mgmt LLC
Production reportsJavelin Energy Partners Mgmt LLCthrough Mar 2026
Latest permitCarrizo (Eagle Ford) LLCDec 31, 2018

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

11,000
total depth, ft
1
permits on file
Dec 31, 2018
last permit issued
Jul 9, 2019
completed
12M
cumulative oil, bbl
15.1M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 9, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

28.541107, -99.006148

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in LA Salle 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 75 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Irvin West O-1-17695Eagleville (Eagle Ford-1)Javelin Energy Partners Mgmt LLC7512M15.1MJun 2013 – Jul 2026

Oil, barrels lease total

Last 12 months 465,004 · prior 12 610,499(-24%)

050K100K202420252026

Gas, mcf lease total

Last 12 months 569,516 · prior 12 569,511(+0%)

050K100K150K202420252026

Chain of custody

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

  1. 1Carrizo (Eagle Ford) LLCJul 2013 → Jan 2020
  2. 2Callon (Eagle Ford) LLCFeb 2020 → Jun 2023
  3. 3Ridgemar Energy Operating, LLCJul 2023 → Jan 2025
  4. 4Javelin Energy Partners Mgmt LLCFeb 2025 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
847621-99DrillCarrizo (Eagle Ford) LLCDec 7, 2018Dec 31, 2018May 16, 201911,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-17695————

Formation tops

As filed on W-2/G-1. Subsea from 391 ft elevation.Download CSV →

FormationMD ftSubsea
Carrizo2,500-2,109
WilcoxWILCOX - DISPOSAL3,358-2,967
Escondido5,555-5,164
OlmosOLMOS - DISPOSAL6,588-6,197
Austin Chalk8,349-7,958
Eagle FordEAGLE FORD - H2S8,729-8,338
BudaBUDA - H2S——
EdwardsEDWARDS - H2S——
Queen City——
Sparta——
Yegua——

Perforations

Perforated and open-hole intervals.

FromToType
9,03415,449Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6253,47612.25905 S
5.515,5618.52,420 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 25, 2019Sep 9, 2019Yes
00Jul 11, 2019Jun 27, 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). 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 →

Irvin West42-283-36611

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Carrizo2,500-2,109
Wilcox3,372-2,981
Escondido5,546-5,155
Olmos6,596-6,205
Austin Chalk8,348-7,957
Eagle Ford8,728-8,337
Edwards—
Pearsall—

12 TOPS · FIRST 8

Irvin West42-283-36616

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Wilcox3,398-3,007
Escondido5,554-5,163
Olmos6,597-6,206
Austin Chalk8,348-7,957
Eagle Ford9,730-9,339
Queen City—
Sparta—
Buda—

11 TOPS · FIRST 8

Irvin West42-283-36617

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Carrizo2,500-2,109
Wilcox3,335-2,944
Escondido5,554-5,163
Olmos6,592-6,201
Austin Chalk8,345-7,954
Eagle Ford8,729-8,338
Buda—
Queen City—

10 TOPS · FIRST 8

Irvin West42-283-36618

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Carrizo2,500-2,109
Wilcox3,379-2,988
Escondido5,560-5,169
Olmos6,618-6,227
Austin Chalk8,340-7,949
Eagle Ford8,725-8,334
Yegua—
Buda—

11 TOPS · FIRST 8

Irvin West42-283-36887

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Carrizo2,500-2,111
Wilcox3,281-2,892
Escondido5,540-5,151
Olmos6,596-6,207
Austin Chalk8,334-7,945
Eagle Ford8,730-8,341
Queen City—
Edwards—

11 TOPS · FIRST 8

Irvin West42-283-36888

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Wilcox3,304-2,915
Escondido5,544-5,155
Olmos6,648-6,259
Austin Chalk8,328-7,939
Eagle Ford8,731-8,342
Queen City—
Sparta—
Buda—

10 TOPS · FIRST 8

Irvin West42-283-36889

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Carrizo2,500-2,111
Wilcox3,319-2,930
Escondido5,554-5,165
Olmos6,598-6,209
Austin Chalk8,325-7,936
Eagle Ford8,723-8,334
Buda—
Queen City—

11 TOPS · FIRST 8

Irvin West42-283-36890

0.0 KM · Carrizo (Eagle Ford) LLC · Section with this well →

Wilcox3,314-2,925
Escondido5,544-5,155
Olmos6,604-6,215
Austin Chalk8,327-7,938
Eagle Ford8,723-8,334
Yegua—
Buda—
Edwards—

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/28336612, documented in the API reference.