WELL · 42-283-33465 · DISTRICT 1

Brown Trust #40H

Y

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

Brown Trust #40H (API 42-283-33465) is a horizontal well in La Salle County operated by Javelin Energy Partners Mgmt LLC, completed July 25, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued September 6, 2012, permitted to 11,000 ft.

It was permitted by Carrizo Oil & Gas, Inc. and has since transferred to Javelin Energy Partners Mgmt LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Carrizo, Ausitn Chalk, Austin Chalk, Eagle Ford.

Its lease has reported 15.7M barrels of oil and 23.5M mcf of gas since January 2012, last reporting in July 2026. The lease carries 73 wells, so these are lease totals, not this well alone.

Operator of record

Javelin Energy Partners Mgmt LLC

Permitted by Carrizo Oil & Gas, Inc.; 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 Oil & Gas, Inc.Sep 6, 2012

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
2
permits on file
Sep 6, 2012
last permit issued
Jul 25, 2014
completed
15.7M
cumulative oil, bbl
23.5M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2012 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 25, 2014
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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 73 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Brown Trust O-1-15756Eagleville (Eagle Ford-1)Javelin Energy Partners Mgmt LLC7315.7M23.5MJan 2012 – Jul 2026

Oil, barrels lease total

Last 12 months 420,236 · prior 12 555,989(-24%)

050K100K202420252026

Gas, mcf lease total

Last 12 months 579,650 · prior 12 933,210(-38%)

050K100K150K202420252026

Chain of custody

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

  1. 1Carrizo (Eagle Ford) LLCApr 2012 → 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
746433-98DrillCarrizo Oil & Gas, Inc.Jan 14, 2013Sep 6, 2012May 7, 201311,000
746433-99DrillCarrizo Oil & Gas, Inc.Aug 14, 2012Sep 6, 2012Oct 13, 201211,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-15756————

Formation tops

As filed on W-2/G-1. Subsea from 480 ft elevation.Download CSV →

FormationMD ftSubsea
CarrizoBASE OF CARRIZO3,800-3,320
Ausitn Chalk8,166-7,686
Austin Chalk8,166-7,686
Eagle Ford8,844-8,364

Perforations

Perforated and open-hole intervals.

FromToType
9,34715,799Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6253,90512.251,364 S
5.515,9258.51,248 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
00Oct 14, 2014Jul 30, 2014—
00Mar 24, 2014Feb 28, 2014Yes
00Jan 3, 2014Oct 28, 2013—
00Mar 25, 2013Jan 21, 2013Yes

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.

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/28333465, documented in the API reference.