TEXAS · WELLS · KARNES COUNTY · MOCZYGEMBA-JAUER UNIT LEASE · API 42-255-33174 · DISTRICT 02

Moczygemba-Jauer Unit #1H

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Karnes County · Eagleville (Eagle Ford-2) field · Producing  · Horizontal

Moczygemba-Jauer Unit #1H (API 42-255-33174) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed December 23, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 6, 2013, permitted to 10,450 ft.

Completion filings report 5 formation tops, including Wilcox, Olmos, Anacacho, Austin Chalk.

Its lease has reported 1.4M barrels of oil and 1.46M mcf of gas since November 2013, last reporting volume in April 2026. The lease carries 3 wells, so these are lease totals, not this well alone.

Operator of record

Marathon Oil EF LLC

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Sep 26, 2025
Permits on file
3,191
Phone
(832) 486-2737

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMarathon Oil EF LLC
Production reportsMarathon Oil EF LLCthrough Apr 2026
Latest permitMarathon Oil EF LLCJun 6, 2013
10,450
total depth, ft
1
permits on file
Jun 6, 2013
last permit issued
Dec 23, 2019
completed
1.4M
cumulative oil, bbl
1.46M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2013 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 23, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (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 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Moczygemba-Jauer Unit O-2-10707Eagleville (Eagle Ford-2)Marathon Oil EF LLC31.4M1.46MNov 2013 – Apr 2026

Oil, barrels lease total

Last 12 months 18,236 · prior 12 31,690(-42%)

02K4K202420252026

Gas, mcf lease total

Last 12 months 21,290 · prior 12 27,493(-23%)

02K4K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCDec 2013 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
763073-99DrillMarathon Oil EF LLCMay 21, 2013Jun 6, 2013Aug 11, 201318,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 23, 2019Moczygemba-Jauer Unit O-2-10707Eagleville (Eagle Ford-2)Marathon Oil EF LLCProducing10,450

Formation tops

As filed on W-2/G-1. Subsea from 280 ft elevation.Download CSV →

FormationMD ftSubsea
Wilcox6,898-6,618
Olmos7,631-7,351
Anacacho10,449-10,169
Austin Chalk10,567-10,287
Austin ChalkAUSTIN CHALK (UPPER)10,567-10,287
Austin ChalkAUSTIN CHALK (LOWER)10,825-10,545
Eagle Ford10,825-10,545
Eagle FordUPPER EAGLE FORD10,825-10,545
Eagle FordLOWER EAGLE FORD10,874-10,594

Perforations

Perforated and open-hole intervals.

FromToType
11,06318,424Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,37012.252,180 S
5.518,5558.52,070 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Apr 9, 2020Jan 23, 2020—
00Nov 30, 2016Nov 15, 2016Yes
00Feb 20, 2014Dec 23, 2013Yes
00Feb 6, 2014Dec 5, 2013Yes

Well logs

2 logs loaded from the RRC's log index, the latest received Jan 20, 2017. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans Olmos, Anacacho, Austin Chalk, Eagle FordTIFF8,050 to 18,597Jan 20, 2017run Aug 28, 20131.19
RESISTIVITYSpans Olmos, Anacacho, Austin Chalk, Eagle FordTIFF8,050 to 18,597Jan 17, 2017run Aug 28, 20131.09

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/25533174, documented in the API reference.