WELL · 42-481-34757 · DISTRICT 3

Hlavinka #5

N

Wharton County · Spanish Camp South (3700) field  · Vertical

Hlavinka #5 (API 42-481-34757) is a well in Wharton County operated by Jmm Energy LLC, completed October 4, 2006.

The RRC has issued 3 drilling permits between 2005 and 2011, permitted to 4,200 ft.

Completion filings report 2 formation tops, including Miocene (undifferentiated), Catahoula.

Its 2 leases have reported 184K barrels of oil and 6.95K mcf of gas since January 2005, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 13.8K barrels injected in the 12 months reported through June 2025.

Operator of record

JMM Energy LLC

Brownsville, TX · P-5 Y, filed Aug 4, 2025 · 13 permits on file · (817) 907-1557

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleJMM Energy LLC
Production reportsCharolais Energy, LLCthrough Mar 2026
Latest permitJMM Energy LLCDec 8, 2011

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

4,200
total depth, ft
3
permits on file
Dec 8, 2011
last permit issued
Oct 4, 2006
completed
184K
cumulative oil, bbl
6.95K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Oct 4, 2006
Shut in
—
Plugged
—

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 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Hlavinka O-3-24654Spanish Camp, N. (3268)Charolais Energy, LLC4184K6.74KJan 2005 – Jul 2026
Hlavinka G-3-222721Spanish Camp, South (3700)JMM Energy LLC10213Oct 2006 – Apr 2015

Oil, barrels lease total

Last 12 months 2,212 · prior 12 1,502(+47%)

0200400600202420252026

Chain of custody

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

  1. 1Allegro Investments, Inc.Jan 2005 → Aug 2009
  2. 2Sue-Ann Operating, L.C.Sep 2009 → Oct 2009
  3. 3JMM Energy LLCNov 2009 → Feb 2021
  4. 4Howard Exploration, Inc.Oct 2022 → Dec 2025
  5. 5Charolais Energy, LLCJan 2026 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
729002-99RecompletionJMM Energy LLCNov 29, 2011Dec 8, 2011Jul 11, 20114,200
628209-99RecompletionAllegro Investments, Inc.Oct 27, 2006Oct 27, 2006—4,200
560425-99DrillAllegro Investments, Inc.Apr 13, 2005Apr 13, 2005Apr 21, 20054,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-3-222721————
—— O-3-24654————
—— O-3-24654————

Formation tops

As filed on W-2/G-1. Subsea from 111 ft elevation.Download CSV →

FormationMD ftSubsea
Miocene (undifferentiated)MIOCENE1,920-1,809
Miocene (undifferentiated)MIOCENE (BASE)1,920-1,809
Miocene (undifferentiated)MIOCENE (BASE01,920-1,809
Catahoula3,267-3,156
CatahoulaCATAHOULA (TOP)3,267-3,156
CatahoulaCATAHOULA (BASE)3,570-3,459

Perforations

Perforated and open-hole intervals.

FromToType
3,2673,267Perforated
3,2673,273Perforated
3,5103,530Perforated
3,7563,757Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,66813.5851 S
5.54,1027.875820 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
00Dec 18, 2023Jun 26, 2023—
00Aug 24, 2015Apr 28, 2015—
00Jun 5, 2012Dec 19, 2011—
00May 9, 2007Nov 10, 2006Yes
00Dec 5, 2006——
00Sep 28, 2006May 25, 2006Yes
00Jun 9, 2006——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

13.8K
bbl, last 12 reported months
734K
bbl, all reported
Jun 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000107184H-1 InjectionActive5,0001,6003,280–3,550

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 13,845 · prior 12 47,057(-71%)

05K10K20242025

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/48134757, documented in the API reference.