WELL · 42-285-33690 · DISTRICT 2

Shiner Unit B #1H

Y

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

Shiner Unit B #1H (API 42-285-33690) is a horizontal well in Lavaca County operated by Marathon Oil EF LLC, completed June 1, 2013 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued January 29, 2013, permitted to 17,200 ft.

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

Its lease has reported 89.8K barrels of oil and 320K mcf of gas since June 2013, last reporting in July 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 2023
Latest permitMarathon Oil EF LLCJan 29, 2013
17,200
total depth, ft
2
permits on file
Jan 29, 2013
last permit issued
Jun 1, 2013
completed
89.8K
cumulative oil, bbl
320K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 1, 2013
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 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Shiner Unit B O-2-10574Eagleville (Eagle Ford-2)Marathon Oil EF LLC389.8K320KJun 2013 – Jul 2026

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 LLCJun 2013 → Apr 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
755331-98DrillMarathon Oil EF LLCMay 29, 2013Jan 29, 2013May 22, 201317,200
755331-99DrillMarathon Oil EF LLCJan 23, 2013Jan 29, 2013Apr 19, 201317,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-10574————

Formation tops

As filed on W-2/G-1. Subsea from 369 ft elevation.Download CSV →

FormationMD ftSubsea
Anacacho11,257-10,888
Austin Chalk11,521-11,152
Eagle Ford12,208-11,839

Perforations

Perforated and open-hole intervals.

FromToType
12,60417,639Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,43514.751,210 S
7.62512,4599.875400 S
5.517,7146.75745 S
4.517,7146.75745 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
00Nov 8, 2013Nov 7, 2013—
00Sep 9, 2013Jul 2, 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/28533690, documented in the API reference.