TEXAS · WELLS · KARNES COUNTY · CREEL MIXON UNIT LEASE · API 42-255-36477 · DISTRICT 02

Creel Mixon Unit #4H

Shut in

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

Creel Mixon Unit #4H (API 42-255-36477) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed May 8, 2021 and listed as shut in on the RRC schedule, shut in June 1, 2026.

The RRC has issued one drilling permit, issued May 28, 2019, permitted to 11,473 ft.

Completion filings report 10 formation tops, including Yegua, Queen City, Reklaw, Carrizo.

Its lease has reported 1.12M barrels of oil and 1.28M mcf of gas since May 2013, last reporting in July 2026. The lease carries 4 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 LLCMay 28, 2019
11,473
total depth, ft
1
permits on file
May 28, 2019
last permit issued
May 8, 2021
completed
1.12M
cumulative oil, bbl
1.28M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 8, 2021
Shut in
Jun 1, 2026
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

28.853207, -98.010944

Google Maps ↗

Permit surface location from the RRC GIS record, in Karnes County.

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Creel Mixon Unit O-2-10546Eagleville (Eagle Ford-2)Marathon Oil EF LLC41.12M1.28MMay 2013 – Jul 2026

Oil, barrels lease total

Last 12 months 24,759 · prior 12 45,261(-45%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 21,740 · prior 12 42,431(-49%)

05K10K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCMay 2013 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
853405-99DrillMarathon Oil EF LLCMay 22, 2019May 28, 2019Feb 26, 202022,000

Completions

CompletedLeaseFieldOperatorStatusDepth
May 8, 2021Creel Mixon Unit O-2-10546Eagleville (Eagle Ford-2)Marathon Oil EF LLCShut In · shut in Jun 1, 202611,473

Formation tops

As filed on W-2/G-1. Subsea from 424 ft elevation.Download CSV →

FormationMD ftSubsea
YeguaYEGUA - DISPOSAL1,462-1,038
Queen City3,563-3,139
Reklaw4,147-3,723
Carrizo4,500-4,076
WilcoxWILCOX - DISPOSAL6,104-5,680
Austin ChalkAUSTIN CHALK - H2S11,178-10,754
Eagle FordEAGLE FORD - H2S11,382-10,958
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
11,55119,380Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,64512.251,379 S
5.519,4798.753,240 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
00Jun 11, 2021May 26, 2021Yes
00Aug 21, 2020Jul 29, 2020—
00Jun 8, 2020Apr 20, 2020Yes
00Feb 4, 2020Nov 26, 2019Yes

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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Creel Mixon Unit42-255-36476

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,462-1,037
Queen City3,563-3,138
Reklaw4,147-3,722
Carrizo4,500-4,075
Wilcox6,104-5,679
Austin Chalk11,172-10,747
Eagle Ford11,374-10,949
Frio—

10 TOPS · FIRST 8

Creel Mixon-Hedtke Anzaldua Psa42-255-36479

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,462-1,038
Queen City3,563-3,139
Reklaw4,147-3,723
Carrizo4,500-4,076
Wilcox6,104-5,680
Austin Chalk11,191-10,767
Eagle Ford11,396-10,972
Edwards—

10 TOPS · FIRST 8

Hedtke-Anzaldua Unit42-255-36478

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,462-1,039
Queen City3,563-3,140
Reklaw4,147-3,724
Carrizo4,500-4,077
Wilcox6,104-5,681
Austin Chalk11,188-10,765
Eagle Ford11,391-10,968
Edwards—

10 TOPS · FIRST 8

Creel Mixon Unit42-255-36475

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,462-1,036
Queen City3,563-3,137
Reklaw4,147-3,721
Carrizo4,500-4,074
Wilcox6,104-5,678
Austin Chalk11,164-10,738
Eagle Ford11,373-10,947
Frio—

10 TOPS · FIRST 8

Scheele-Huth Unit B42-255-37026

0.6 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,469-1,035
Queen City3,570-3,136
Reklaw4,154-3,720
Carrizo4,507-4,073
Wilcox6,111-5,677
Austin Chalk11,113-10,679
Eagle Ford11,339-10,905
Sligo—

10 TOPS · FIRST 8

Scheele-Huth Unit B42-255-37028

0.6 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,469-1,035
Queen City3,570-3,136
Reklaw4,154-3,720
Carrizo4,507-4,073
Wilcox6,111-5,677
Austin Chalk11,111-10,677
Eagle Ford11,203-10,769
Edwards—

10 TOPS · FIRST 8

Scheele-Huth Unit B42-255-37027

0.6 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,469-1,104
Queen City3,570-3,205
Reklaw4,154-3,789
Carrizo4,507-4,142
Wilcox6,111-5,746
Austin Chalk11,113-10,748
Eagle Ford11,332-10,967
Edwards—

10 TOPS · FIRST 8

Scheele-Huth Unit A42-255-37025

0.6 KM · Marathon Oil EF LLC · Section with this well →

Yegua1,469-1,033
Queen City3,570-3,134
Reklaw4,154-3,718
Carrizo4,507-4,071
Wilcox6,111-5,675
Austin Chalk11,113-10,677
Eagle Ford11,332-10,896
Sligo—

10 TOPS · FIRST 8

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/25536477, documented in the API reference.