WELL · 42-127-37852 · DISTRICT 1

Latham McKnight #3904H

Y

Dimmit County · Hugh Fitzsimmons (San Miguel) field · Producing  · Horizontal

Latham Mcknight #3904H (API 42-127-37852) is a horizontal well in Dimmit County operated by Jonah Energy LLC, completed August 2, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 12, 2018, permitted to 4,000 ft.

It was permitted by Endeavor Natural Gas, LP and has since transferred to Jonah Energy LLC on the wellbore schedule.

Completion filings report 9 formation tops, including Olmos, San Miguel, Austin Chalk, Eagle Ford.

Its lease has reported 402K barrels of oil and 1.51M mcf of gas since March 2016, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.

Operator of record

Jonah Energy LLC

Permitted by Endeavor Natural Gas, LP; the EWA schedule now lists a different operator.

Denver, CO · P-5 Y, filed Mar 12, 2026 · 42 permits on file · (844) 944-3754

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleJonah Energy LLC
Production reportsJonah Energy LLCthrough Mar 2026
Latest permitEndeavor Natural Gas, LPApr 12, 2018

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

4,000
total depth, ft
1
permits on file
Apr 12, 2018
last permit issued
Aug 2, 2018
completed
402K
cumulative oil, bbl
1.51M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2016 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 2, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.446751, -100.051256

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Dimmit 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 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Latham McKnight O-1-18756Hugh Fitzsimmons (San Miguel)Jonah Energy LLC6402K1.51MMar 2016 – Jul 2026

Oil, barrels lease total

Last 12 months 17,148 · prior 12 20,438(-16%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 112,090 · prior 12 119,052(-6%)

010K20K30K202420252026

Chain of custody

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

  1. 1Endeavor Natural Gas, LPMar 2016 → Jun 2021
  2. 2Grit Oil & Gas Management, LLCJul 2021 → Feb 2026
  3. 3Jonah Energy LLCMar 2026 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
838464-99DrillEndeavor Natural Gas, LPApr 5, 2018Apr 12, 2018May 18, 20184,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-18756————

Formation tops

As filed on W-2/G-1. Subsea from 799 ft elevation.Download CSV →

FormationMD ftSubsea
OlmosOLMOS - DISPOSAL1,907-1,108
San MiguelSAN MIGUEL - H2S2,317-1,518
Austin ChalkAUSTIN CHALK - H2S——
Eagle FordEAGLE FORD - H2S——
EdwardsEDWARDS - H2S——
EscondidoESCONDIDO - DISPOSAL——
GeorgetownGEORGETOWN - H2S——
Glen RoseGLEN ROSE - DISPOSAL——
Pearsall——

Perforations

Perforated and open-hole intervals.

FromToType
3,2357,107Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
74859.875210 S
4.57,1076.125475 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 1, 2018Aug 6, 2018Yes

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 →

Latham McKnight42-127-37854

0.5 KM · Endeavor Natural Gas, LP · Section with this well →

Olmos1,900-1,092
San Miguel2,300-1,492
Eagle Ford—
Glen Rose—
Edwards—
Georgetown—
Pearsall—
Escondido—

9 TOPS · FIRST 8

Hamilton Ranch C42-127-37879

1.3 KM · Endeavor Natural Gas, LP · Section with this well →

Escondido950-174
Olmos2,300-1,524
San Miguel3,200-2,424
Eagle Ford—
Austin Chalk—
Edwards—
Georgetown—
Glen Rose—

9 TOPS · FIRST 8

Hamilton Ranch B42-127-37880

1.4 KM · Endeavor Natural Gas, LP · Section with this well →

Escondido950-933
Olmos2,300-2,283
San Miguel2,743-2,726
Austin Chalk—
Eagle Ford—
Edwards—
Georgetown—
Glen Rose—

9 TOPS · FIRST 8

Hamilton Ranch42-127-38813

1.7 KM · Grit Oil & Gas Management, LLC · Section with this well →

Escondido1,051-248
Olmos2,000-1,197
San Miguel2,822-2,019
Edwards—
Georgetown—
Glen Rose—
Austin Chalk—
Eagle Ford—

9 TOPS · FIRST 8

Hamilton Ranch42-127-38810

1.7 KM · Grit Oil & Gas Management, LLC · Section with this well →

Escondido1,051-249
Olmos2,000-1,198
San Miguel2,836-2,034
Georgetown—
Glen Rose—
Pearsall—
Austin Chalk—
Eagle Ford—

9 TOPS · FIRST 8

Hamilton Ranch42-127-38809

1.7 KM · Grit Oil & Gas Management, LLC · Section with this well →

Escondido1,051-249
Olmos2,000-1,198
San Miguel2,779-1,977
Austin Chalk—
Eagle Ford—
Edwards—
Georgetown—
Glen Rose—

9 TOPS · FIRST 8

Hamilton Ranch42-127-38814

1.7 KM · Grit Oil & Gas Management, LLC · Section with this well →

Escondido1,051-249
Olmos2,000-1,198
San Miguel2,785-1,983
Austin Chalk—
Eagle Ford—
Edwards—
Georgetown—
Glen Rose—

9 TOPS · FIRST 8

Hamilton Ranch42-127-38812

1.7 KM · Grit Oil & Gas Management, LLC · Section with this well →

Escondido1,051-249
Olmos2,000-1,198
San Miguel2,855-2,053
Georgetown—
Edwards—
Eagle Ford—
Austin Chalk—
Pearsall—

9 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/12737852, documented in the API reference.