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Texas operator records

MARATHON OIL EF LLC

MARATHON OIL EF LLC Texas oil and gas operator page with public well counts, producing signals, permits, completions, P-4 operator-change events, top counties, top fields, recent activity, and linked well records.

Operator No. 525398
Public wells3,447
Non-zero oil/gas wells69
Permitted wells6
Recently completed51
P-4/operator changes0
Last updatedJun 1, 2026
Operator summary

MARATHON OIL EF LLC Texas well context

MARATHON OIL EF LLC Texas oil and gas operator page with public well counts, producing signals, permits, completions, P-4 operator-change events, top counties, top fields, recent activity, and linked well records.

This SSR-rendered operator page links public well records with counties, fields, recent activity, production signals, completions, permits, and source-document context where available. Use it as a research starting point, then verify important facts against official records.

Operator number: 525398.

Production

Recent production summary

Non-zero oil/gas wells69
Production reports832
Water-only reports8
Last 12m oil2,415,572 bbl
Last 12m gas6,608,312 mcf
10 wells

Recent wells

EDWARD ROEDER-MIGURA A SA1 #1H

Dewitt County - MARATHON OIL EF LLC - DE WITT (EAGLE FORD SHALE)

Survey HILL, W G - Abstract 223 - Block and

Recently completedDocument FiledJun 26, 2026
View record
KIRK-BUTLER B SA1 #1H

Karnes County - MARATHON OIL EF LLC

Survey CI CO - Abstract 307

PermittedDirectional Survey AvailableJun 16, 2026
View record
EDWARD ROEDER-JAMES GANO SA1 #1H

Dewitt County - MARATHON OIL EF LLC - DE WITT (EAGLE FORD SHALE)

Survey HILL, W G - Abstract 223 - Block and

Recently completedDocument FiledJun 15, 2026
View record
ANNE FRIAR THOMAS #7H

MARATHON OIL EF LLC

Survey MC COY, J JR - Abstract 30

ProducingPending Lease Production ReportedJun 1, 2026
View record
ANNE FRIAR THOMAS AC #9H

MARATHON OIL EF LLC

Survey MC COY, J JR - Abstract 30

ProducingPending Lease Production ReportedJun 1, 2026
View record
BEST BATEMAN-BEST HUTH SA1 #1H

MARATHON OIL EF LLC

Survey BRADBERRY, J - Abstract 24

ProducingPending Lease Production ReportedJun 1, 2026
View record
BEST FENNER-MORGAN SA1 #1H

MARATHON OIL EF LLC

Survey BRADBERRY, J - Abstract 24

ProducingPending Lease Production ReportedJun 1, 2026
View record
CHERRY BERGEY SA1 #1H

MARATHON OIL EF LLC

Survey MC COY, J - Abstract 45

ProducingPending Lease Production ReportedJun 1, 2026
View record
CHERRY BERGEY SELMAN SA4 #4H

MARATHON OIL EF LLC

Survey MC COY, J - Abstract 45

ProducingPending Lease Production ReportedJun 1, 2026
View record
CHERRY BERGEY SELMAN SA5 #5H

MARATHON OIL EF LLC

Survey MC COY, J - Abstract 45

ProducingPending Lease Production ReportedJun 1, 2026
View record
8 wells

Recently completed wells

BARNHART (EF)-HFS SA7 #135H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF)-HFS SA8 #137H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF)-J.M. PRESTON SA10 #125H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF)-J.M. PRESTON SA6 #123H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF) #112H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF) #113H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF) H #5H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF) H UNIT SA3 #3H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
8 wells

Active and producing wells

ANNE FRIAR THOMAS #7H

MARATHON OIL EF LLC

Survey MC COY, J JR - Abstract 30

ProducingPending Lease Production ReportedJun 1, 2026
View record
ANNE FRIAR THOMAS AC #9H

MARATHON OIL EF LLC

Survey MC COY, J JR - Abstract 30

ProducingPending Lease Production ReportedJun 1, 2026
View record
BEST BATEMAN-BEST HUTH SA1 #1H

MARATHON OIL EF LLC

Survey BRADBERRY, J - Abstract 24

ProducingPending Lease Production ReportedJun 1, 2026
View record
BEST FENNER-MORGAN SA1 #1H

MARATHON OIL EF LLC

Survey BRADBERRY, J - Abstract 24

ProducingPending Lease Production ReportedJun 1, 2026
View record
CHERRY BERGEY SA1 #1H

MARATHON OIL EF LLC

Survey MC COY, J - Abstract 45

ProducingPending Lease Production ReportedJun 1, 2026
View record
CHERRY BERGEY SELMAN SA4 #4H

MARATHON OIL EF LLC

Survey MC COY, J - Abstract 45

ProducingPending Lease Production ReportedJun 1, 2026
View record
CHERRY BERGEY SELMAN SA5 #5H

MARATHON OIL EF LLC

Survey MC COY, J - Abstract 45

ProducingPending Lease Production ReportedJun 1, 2026
View record
FELIX UNIT #3H

MARATHON OIL EF LLC

Survey EBERLY, J - Abstract 105

ProducingPending Lease Production ReportedJun 1, 2026
View record
8 events

Recent permit events

Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4217734758
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4212335470
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538265
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538270
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538164
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4212335471
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538149
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538262
Open well pageView source documents
8 events

Recent completion events

Jun 26, 2026Document Filed

EDWARD ROEDER-MIGURA A SA1 #1H - DEWITT - DE WITT (EAGLE FORD SHALE)

Document FiledDewitt CountyMARATHON OIL EF LLCAPI 4212335609
Open well page
Jun 15, 2026Document Filed

EDWARD ROEDER-JAMES GANO SA1 #1H - DEWITT - DE WITT (EAGLE FORD SHALE)

Document FiledDewitt CountyMARATHON OIL EF LLCAPI 4212335597
Open well page
Date unknownCompletion-related well activity

BARNHART (EF)-HFS SA7 #135H - EAGLEVILLE (EAGLE FORD-2)

Completion Report FiledMARATHON OIL EF LLCAPI 4217734754
Open well pageCompletion activity
Date unknownCompletion-related well activity

BARNHART (EF)-HFS SA8 #137H - EAGLEVILLE (EAGLE FORD-2)

Completion Report FiledMARATHON OIL EF LLCAPI 4217734755
Open well pageCompletion activity
Date unknownCompletion-related well activity

BARNHART (EF)-J.M. PRESTON SA10 #125H - EAGLEVILLE (EAGLE FORD-2)

Completion Report FiledMARATHON OIL EF LLCAPI 4217734747
Open well pageCompletion activity
Date unknownCompletion-related well activity

BARNHART (EF)-J.M. PRESTON SA6 #123H - EAGLEVILLE (EAGLE FORD-2)

Completion Report FiledMARATHON OIL EF LLCAPI 4217734746
Open well pageCompletion activity
Date unknownCompletion-related well activity

BARNHART (EF) #112H - EAGLEVILLE (EAGLE FORD-1)

Completion Report FiledMARATHON OIL EF LLCAPI 4217734701
Open well pageCompletion activity
Date unknownCompletion-related well activity

BARNHART (EF) #113H - EAGLEVILLE (EAGLE FORD-1)

Completion Report FiledMARATHON OIL EF LLCAPI 4217734702
Open well pageCompletion activity
0 events

Recent P-4 Operator-Change Events

No matching activity is linked yet.

10 events

Recent Operator Activity

Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4217734758
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4212335470
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538265
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538270
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538164
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4212335471
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538149
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538262
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538271
Open well pageView source documents
Jun 1, 2026Pending lease production reported

Lease-level production was reported through a pending lease PR row linked by API or drilling permit.

Pending Lease Production ReportedMARATHON OIL EF LLCAPI 4225538148
Open well pageView source documents
12 links

Related counties, fields, wells, and activity

Karnes CountyCountyAtascosa CountyCountyDewitt CountyCountyKarnes Longitude: -98.03916 Mag Reference: Grid North CountyCountyEAGLEVILLE (EAGLE FORD-1)FieldEAGLEVILLE (EAGLE FORD-2)FieldSUGARKANE (EAGLE FORD)FieldDE WITT (EAGLE FORD SHALE)FieldBARNHART (EF)-HFS SA7 #135HWellBARNHART (EF)-HFS SA8 #137HWellBARNHART (EF)-J.M. PRESTON SA10 #125HWellBARNHART (EF)-J.M. PRESTON SA6 #123HWell
131 public well cards

Paginated well list

BARNHART (EF)-HFS SA7 #135H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF)-HFS SA8 #137H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF)-J.M. PRESTON SA10 #125H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF)-J.M. PRESTON SA6 #123H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey LOCKHART, B - Abstract 37 - Section 1

Recently completed
View record
BARNHART (EF) #112H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF) #113H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF) H #5H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF) H UNIT SA3 #3H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
BARNHART (EF)-J.M. PRESTON SA1 #115H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey TENNELL, J - Abstract 449

Recently completed
View record
LESKE-JUDD-MOTL SA D #4H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey PHARRASS, S - Abstract 377

Recently completed
View record
LESKE-MOTL SA A #1H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey PHARRASS, S - Abstract 377

Recently completed
View record
LESKE-MOTL SA B #2H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey PHARRASS, S - Abstract 377

Recently completed
View record
LESKE-MOTL SA C #3H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-2)

Survey PHARRASS, S - Abstract 377

Recently completed
View record
74 RANCH E #11

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey BARRERA, A - Abstract 63

Recently completed
View record
MCS FOUNDATION UNIT #7H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey BS&F - Abstract 122 - Section 5

Recently completed
View record
MCS FOUNDATION UNIT #8H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey BS&F - Abstract 122 - Section 5

Recently completed
View record
MCS FOUNDATION UNIT #9H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey BS&F - Abstract 122 - Section 5

Recently completed
View record
MCS FOUNDATION-TOM FAMILY USW A #1

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey BS&F - Abstract 122 - Section 5

Recently completed
View record
R MAY A-MAY GIRLS CHAPMAN SA2 #2H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey ACH&B & H&W - Abstract 61 - Section 1

Recently completed
View record
R MAY A-SCHROEDER CHAPMAN SA1 #1H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey ACH&B & H&W - Abstract 61 - Section 1

Recently completed
View record
HIERHOLZER RETZLOFF-MCMAHON SA2 #2H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey ANTHONY, F - Abstract 15

Recently completed
View record
HIERHOLZER RETZLOFF-MCMAHON SA3 #3H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey ANTHONY, F - Abstract 15

Recently completed
View record
STEWART GIESE HENKE SA2 #2H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey POITEVENT, J - Abstract 709 - Section 3

Recently completed
View record
STEWART GIESE HENKE SA3 #3H

MARATHON OIL EF LLC - EAGLEVILLE (EAGLE FORD-1)

Survey POITEVENT, J - Abstract 709 - Section 3

Recently completed
View record
PreviousPage 2 of 6Next
7 counties

Counties

Karnes County3Atascosa County2Dewitt County2Karnes Longitude: -98.03916 Mag Reference: Grid North County2Atascosa County1Karnes Longitude: -98.03944 Mag Reference: Grid North County1Karnes Longitude: -98.03948 Mag Reference: Grid North County1
6 fields

Fields

EAGLEVILLE (EAGLE FORD-1)42EAGLEVILLE (EAGLE FORD-2)32SUGARKANE (EAGLE FORD)23DE WITT (EAGLE FORD SHALE)2Eagleville (Eagle Ford-1)1SUGARKANE (AUSTIN CHALK)1
Activity feeds

Operator-related activity

P-4 operator changesNew permitsCompletionsProduction
Source note

Operator pages organize public and derived records. Verify official source documents before making legal, financial, operational, title, mineral ownership, or investment decisions.

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