WELL · 42-255-32968 · DISTRICT 2

Gross-McLean Unit #3H

Y

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

Gross-Mclean Unit #3H (API 42-255-32968) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed August 24, 2019 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued January 30, 2013, permitted to 17,000 ft.

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

Its lease has reported 595K barrels of oil and 1.6M mcf of gas since November 2012, last reporting in July 2026. The lease carries 6 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 LLCJan 30, 2013
17,000
total depth, ft
1
permits on file
Jan 30, 2013
last permit issued
Aug 24, 2019
completed
595K
cumulative oil, bbl
1.6M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2012 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 24, 2019
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
Gross-McLean Unit O-2-10338Eagleville (Eagle Ford-2)Marathon Oil EF LLC6595K1.6MNov 2012 – Jul 2026

Oil, barrels lease total

Last 12 months 999 · prior 12 1,161(-14%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 1,111 · prior 12 2,585(-57%)

05K10K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCNov 2012 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
755095-99DrillMarathon Oil EF LLCJan 18, 2013Jan 30, 2013Mar 2, 201317,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-10338————

Formation tops

As filed on W-2/G-1. Subsea from 437 ft elevation.Download CSV →

FormationMD ftSubsea
Anacacho11,743-11,306
Austin Chalk11,888-11,451
Eagle Ford12,040-11,603

Perforations

Perforated and open-hole intervals.

FromToType
12,41316,085Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6256,12512.251,735 S
5.516,2708.52,420 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
00Jan 24, 2020Nov 14, 2019—
00Nov 9, 2016Sep 21, 2016—
00Jul 17, 2013May 30, 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/25532968, documented in the API reference.