WELL · 42-127-37249 · DISTRICT 1

Latham McKnight #3901H

Y

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

Latham Mcknight #3901H (API 42-127-37249) is a horizontal well in Dimmit County operated by Jonah Energy LLC, completed March 22, 2016 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued January 15, 2016, permitted to 2,980 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 Escondido, Olmos, San Miguel, Austin Chalk.

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.

Based in
Denver, CO
P-5 status
Active (A)
P-5 last filed
Mar 12, 2026
Permits on file
42
Phone
(720) 577-1000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleJonah Energy LLC
Production reportsJonah Energy LLCthrough Mar 2026
Latest permitEndeavor Natural Gas, LPJan 15, 2016

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

2,980
total depth, ft
2
permits on file
Jan 15, 2016
last permit issued
Mar 22, 2016
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
Mar 22, 2016
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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 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
813241-98DrillEndeavor Natural Gas, LPMar 24, 2016Jan 15, 2016Jan 25, 20164,000
813241-99DrillEndeavor Natural Gas, LPJan 14, 2016Jan 15, 2016—4,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 22, 2016Latham McKnight O-1-18756Hugh Fitzsimmons (San Miguel)Jonah Energy LLCProducing2,980

Formation tops

As filed on W-2/G-1. Subsea from 825 ft elevation.Download CSV →

FormationMD ftSubsea
EscondidoESCONDIDO - DISPOSAL1,040-215
OlmosOLMOS - DISPOSAL1,886-1,061
San MiguelSAN MIGUEL - H2S2,905-2,080
Austin ChalkAUSTIN CHALK - H2S——
Eagle FordEAGLE FORD - H2S——
EdwardsEDWARDS - H2S——
GeorgetownGEORGETOWN - H2S——
Glen RoseGLEN ROSE - DISPOSAL——
Pearsall——

Perforations

Perforated and open-hole intervals.

FromToType
3,3807,338Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
71,0059.625306 S
4.57,5006.125572 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
00May 16, 2016Apr 6, 2016Yes

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/12737249, documented in the API reference.