TEXAS · WELLS · KARNES COUNTY · RIDLEY 01 LEASE · API 42-255-32753 · DISTRICT 02

Ridley 01 #03H

Shut in

Karnes County · Sugarkane (Eagle Ford) field · Producing  · Horizontal

Ridley 01 #03H (API 42-255-32753) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed December 20, 2012 and listed as producing on the RRC schedule, shut in June 1, 2023.

The RRC has issued one drilling permit, issued September 10, 2012, permitted to 12,920 ft.

It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Marathon Oil EF LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Midway, Austin Chalk, Top Egfd, Tp[ Egfd.

Its lease has reported 230K barrels of oil and 486K mcf of gas since December 2012, last reporting volume in January 2026.

Operator of record

Marathon Oil EF LLC

Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Oct 13, 2026
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 Jan 2026
Latest permitPioneer Natural Res. USA, Inc.Sep 10, 2012

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

12,920
total depth, ft
1
permits on file
Sep 10, 2012
last permit issued
Dec 20, 2012
completed
230K
cumulative oil, bbl
486K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · DEC 2012 THROUGH JAN 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 20, 2012
Shut in
Jun 1, 2023
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Ridley 01 G-2-269546Sugarkane (Eagle Ford)Marathon Oil EF LLC1230K486KDec 2012 – Jan 2026

Gas, mcf lease total

Last 12 months 6 · prior 12 0

0246202420252026

Wells named Ridley 01

Marathon Oil EF LLC's other wells filed under this lease name in Karnes County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

Operator on the lease's P-4

Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.

OperatorFromTo
Marathon Oil EF LLCMar 1, 2023today
Ensign Operating LLCOct 2, 2019Mar 1, 2023
Pioneer Natural Res. USA, Inc.Dec 20, 2012Oct 2, 2019

Reporting production

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

  1. 1Pioneer Natural Res. USA, Inc.Dec 2012 → Sep 2019
  2. 2Ensign Operating LLCOct 2019 → Feb 2023
  3. 3Marathon Oil EF LLCMar 2023 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
747343-99DrillPioneer Natural Res. USA, Inc.Aug 29, 2012Sep 10, 2012Sep 23, 201221,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 20, 2012Ridley 01 G-2-269546Sugarkane (Eagle Ford)Marathon Oil EF LLCProducing · shut in Jun 1, 202312,920

Formation tops

As filed on W-2/G-1. Subsea from 257 ft elevation.Download CSV →

FormationMD ftSubsea
Midway8,943-8,686
Austin ChalkAUSTIN CHALK, UPPER12,458-12,201
Top Egfd12,764-12,507
Tp[ Egfd12,764-12,507

Perforations

Perforated and open-hole intervals.

FromToType
12,95118,062Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37580717.5946 S
9.6259,17912.25405 S
5.518,2028.52,019 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
00Jan 14, 2025Aug 19, 2024—
00Aug 30, 2013Jan 22, 2013Yes

Well logs

1 log loaded from the RRC's log index, the latest received Oct 13, 2015. Resistivity.

Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.

Logas describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans Midway, Austin Chalk, Top Egfd, Tp[ EgfdTIFF9,179 to 18,202Oct 13, 2015run Oct 1, 20120.80

"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.

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.

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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/25532753, documented in the API reference.