OPERATORS · RRC 433110  · P-5 STATUS Y

JMM Engy LLC

Brownsville, TX

Watch this operator

Jmm Engy LLC has filed no drilling permits in the past 12 months; its most recent permit was issued July 24, 2017.

The RRC wellbore file lists 12 wells under its operatorship (3 shut in).

13 drilling permits have been issued to this operator number since 2004; its P-5 organization report was last filed August 4, 2025.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 12 of record
8
leases it reports
—
horizontal, 12 months

WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026

From permit to spud

FROM THE DATES ON ITS W-1 PERMITS · ALL TIME

A permit is a plan, not a well. These figures count only permits old enough to have spudded, six months and more, and read the spud, cancel, and expiry dates the RRC records on each one.

69%
spud rate · 9 of 13 mature permits
45
median days permit to spud · middle half 35–54
0
spuds, last 180 days
0%
cancelled · 0 permits
4
expired undrilled
1
permits a year over 13 active years

Where

Counties by permits in the last 12 months, with all-time permits and current wells of record there.

County12 moAll timeWellsLast
Victoria county →—611Oct 5, 2016
Wharton county →—51May 9, 2013
Haskell county →—10Sep 19, 2014
Matagorda county →—10Jul 24, 2017

All 13 permits, searchable → · Leases it reports → · On the map →

Formations in its completed wells

Tops reported on completion filings for wells it operates. RRC wellbore file. About tops →

FormationWellsPermitted last 3 yrs
Catahoula30
Miocene (undifferentiated)20
Frio10

Production by month

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Barrels on leases where this operator filed the production report. Lease-level by design; the latest months are revised upward as late reports arrive. How production is reported →

0
bbl oil, last 12 reported months
—
vs the 12 months before
0
mcf gas incl. casinghead, last 12
153K
bbl oil since reporting began

No lease production reported under this operator number in the last three years.

Beyond the permit record

RRC wellbore file

Wells of record

12
on the schedule
0
producing
3
shut in
0
injection
0
temp. abandoned
8
plugged

How it got them

3
permitted itself
9
acquired from others
5
permitted, now run by others

Acquired means the well's permit names a different operator than the schedule does today. Transfers and operator numbers →

RRC UIC permits · H-10 reported volumes

Disposal and injection

0
active UIC permits of 7
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Victoria0 active0 bbl/d
Wharton0 active0 bbl/d

Permitted volume is a ceiling, not throughput. How to read it →

Permit types

Last 12 months against the prior 12, and all time. A type opens the permit history filtered to it. What the types mean →

Type12 moPrior 12All time
Drill0010
Recompletion003

Fields

RRC regulatory fields with the most wells of record under this operator. The field opens its page; the count opens this operator's wells in it.

P-5 organization report

As registered with the RRC. About the P-5 →

Registration
Status code Y
Last filed Aug 4, 2025
Oil operator
Address
1495 Cajun Road
Brownsville, TX 78521
(817) 907-1557
Officers and agents
Masterson, John Maxwell · Managing Member

Latest permits

NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
829084Jul 24, 2017Jul 24, 2017JMM Energy LLCMatagordaNorthern Ranch #116,80032131637
818036Oct 5, 2016Oct 5, 2016JMM Energy LLCVictoriaHeinrich, Henry #1A2,81146932644
795334Sep 19, 2014Sep 19, 2014JMM Energy LLCHaskellHerren #25,00020732851
761982May 9, 2013May 9, 2013JMM Energy LLCWhartonJones #34,00048135302
759496Mar 28, 2013Mar 28, 2013JMM Energy LLCWhartonJones Unit #24,00048135291
759496Mar 28, 2013Mar 28, 2013JMM Energy LLCWhartonJones Unit #24,00048135291
733804Feb 28, 2012Feb 28, 2012JMM Energy LLCWhartonJones #14,00048135228
729002Dec 8, 2011Dec 8, 2011JMM Energy LLCWhartonHlavinka #54,20048134757
681343Jul 6, 2009Jul 6, 2009JMM Energy LLCVictoriaHeinrich, Henry #4R5,00046934169
681343Jul 6, 2009Jul 6, 2009JMM Energy LLCVictoriaHeinrich, Henry #4R3,00046934169
681225Jun 12, 2009Jun 12, 2009JMM Energy LLCVictoriaHeinrich, Henry #95,00046934168
659593May 14, 2008May 14, 2008JMM Energy LLCVictoriaHeinrich, Henry #83,00046934104
628209Oct 27, 2006Oct 27, 2006Allegro Investments, Inc.WhartonHlavinka #54,20048134757
560425Apr 13, 2005Apr 13, 2005Allegro Investments, Inc.WhartonHlavinka #54,20048134757
554063Dec 9, 2004Dec 9, 2004JMM Energy LLCVictoriaHeinrich #74,00046933886

Full permit history →

About this data

Registration from the RRC P-5 organization report, refreshed weekly. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports at the last vintage; disposal from UIC permits and H-10 reports. Summary figures are rebuilt nightly.

Developers: this page as JSON is GET /v1/data/operators/tx/433110, documented in the API reference.