WELL · 42-123-32838 · DISTRICT 2

Leske-Lott Unit #4H

N

DE Witt County · Eagleville (Eagle Ford-2) field  · Horizontal

Leske-Lott Unit #4H (API 42-123-32838) is a horizontal well in De Witt County operated by Marathon Oil EF LLC, completed December 10, 2012.

The RRC has issued one drilling permit, issued July 25, 2012, permitted to 18,200 ft.

Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.

No lease production has been reported under this well’s leases.

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 Sep 2021
Latest permitMarathon Oil EF LLCJul 25, 2012
18,200
total depth, ft
1
permits on file
Jul 25, 2012
last permit issued
Dec 10, 2012
completed
0
cumulative oil, bbl
1.23M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 10, 2012
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 9 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Leske-Lott Unit G-2-286321Eagleville (Eagle Ford-2)Marathon Oil EF LLC101.23MDec 2012 – Jul 2026
Leske-Lott Unit O-2-9838Eagleville (Eagle Ford-2)Marathon Oil EF LLC800Aug 2011 – Aug 2020

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Marathon Oil EF LLCDec 2012 → Sep 2021

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
744620-99DrillMarathon Oil EF LLCJul 13, 2012Jul 25, 2012Aug 14, 201218,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-286321————
—— O-2-9838————

Formation tops

As filed on W-2/G-1. Subsea from 245 ft elevation.Download CSV →

FormationMD ftSubsea
Anacacho12,617-12,372
Austin Chalk12,824-12,579
Eagle Ford13,273-13,028

Perforations

Perforated and open-hole intervals.

FromToType
13,70818,333Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,38812.251,590 S
7.62510,5008.75255 S
5.518,5126.75840 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 2, 2019Jan 18, 2019Yes
00Sep 26, 2013Jul 1, 2013Yes
00Mar 13, 2013Jan 9, 2013Yes

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/12332838, documented in the API reference.