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Texas well record

HIERHOLZER QUAD SA B #1

MARATHON OIL EF LLC

PermittedKarnes Longitude: -98.03944 Mag Reference: Grid North County
API104225538368
API825538368
Latest eventDirectional Survey Available
Event dateMay 11, 2026
Well context

Known public record details

API number4225538368
CountyKarnes Longitude: -98.03944 Mag Reference: Grid North County
OperatorMARATHON OIL EF LLC
Field-
LeaseHIERHOLZER QUAD SA B (000000)
Well number1
StatusPermitted
Location

Location summary

Public records currently place this well in Karnes Longitude: -98.03944 Mag Reference: Grid North County, survey GRIFFITH, N, abstract 123, section 600. Surface locations can be incomplete or misleading for horizontal wells, so verify official plats, directional surveys, completion records, and source documents before relying on a map point.

SurveyGRIFFITH, N
Abstract123
Block-
Section600
Directional survey geometry

Final Certified Survey 1

Derived lateral/wellbore geometry is available for this well from parsed public directional survey records.

Preview shows surface point, lateral/wellbore path, and bottomhole/end point where available.
Geometry sourceMWD survey + projected segment
PrecisionSurveyed station table
ExtractionComputed local offsets
Station count222
Measured depth end21,080 ft
TVD end11,548 ft
Source form/documentDirectional survey record
Source document ID23920
Parsed wellbore-
Parsed well / lease-
Geometry roleProjected segment
Completeness100%
View source documentOpen on Texas map

Part of this path is projected from parsed survey records.

Wellbore paths are derived from parsed public directional survey records. They are not official property, tract, or legal boundary lines. Verify critical decisions with official source records.

Land-grid crossings

Survey, Block & Section Crossings

Surface location

SurveyGRIFFITH, N
Abstract123
Block-
Section600

Wellbore path: No cached survey/block/section crossings are available yet

Survey/block/section crossings have not been generated for this wellbore cache yet.

Projected segment

No cached survey/block/section crossings are available yet

No cached land-grid crossing rows are available for this geometry yet.

Survey, abstract, block, and section crossings are derived from public GIS polygons and parsed wellbore geometry. They are approximate and are not official parcel, mineral-title, ownership, or legal-boundary determinations.

Lifecycle

Well lifecycle timeline

W-1 permit
Linked signal foundMay 11, 2026

Permit records can indicate requested drilling, recompletion, deepening, or related work, but do not guarantee drilling or production.

Directional survey, plat, or L-1
Linked signal foundMay 11, 2026

Directional surveys, plats, and L-1 records can be important for understanding horizontal wells beyond the surface point.

W-2/G-1 completion
No linked signal yetDate unknown

Completion filings can show that a well moved from permitted or drilled status into a completed well record.

Form PR production
No linked signal yetDate unknown

Production signals help identify wells with linked monthly production or derived producing status.

P-4 operator/lease changes
No linked signal yetDate unknown

P-4 activity can indicate operator, lease, gatherer, purchaser, or responsibility changes tied to the record.

W-3A/W-3 plugging
No linked signal yetDate unknown

Plugging notices and plugging records help distinguish planned plugging from wells already reported as plugged.

Activity

Recent activity timeline

Jun 3, 2026Directional survey available

Directional survey

Directional Survey AvailableKarnes Longitude: -98.03944 Mag Reference: Grid North CountyMARATHON OIL EF LLCAPI 4225538368
W-12 explainerView source documents
Documents

Recent source documents

Directional surveyForm type unknownJun 3, 2026
8 linked wells

Related wells from the same lease, operator, field, or county

25538405

Karnes County - MARATHON OIL EF LLC PO BOX 2197 - SUGARKANE (EAGLE FORD)

Survey D - Abstract 28 - Block BARNES, J - Section 295

PermittedHorizontal Permit FiledJun 9, 2026
View record
25538407

Karnes County - MARATHON OIL EF LLC PO BOX 2197 - SUGARKANE (EAGLE FORD)

Survey D - Abstract 28 - Block BARNES, J - Section 295

PermittedHorizontal Permit FiledJun 9, 2026
View record
25538384

Karnes County - MARATHON OIL EF LLC PO BOX 2197 - EAGLEVILLE (EAGLE FORD-2)

Survey SEGUIN, D E - Abstract 10 - Block 27135750 EAGLEVILLE - Section 02

PermittedHorizontal Permit FiledApr 21, 2026
View record
J HANDY B #2H

Karnes County - DEVON ENERGY PRODUCTION CO, L.P. - EAGLEVILLE (EAGLE FORD-2)

Survey FLORES, D G - Abstract 1 - Block and

Recently completedDocument FiledJun 25, 2026
View record
J HANDY C #3H

Karnes County - DEVON ENERGY PRODUCTION CO, L.P. - EAGLEVILLE (EAGLE FORD-2)

Survey FLORES, D G - Abstract 1 - Block and

Recently completedDocument FiledJun 25, 2026
View record
J HANDY D #4H

Karnes County - DEVON ENERGY PRODUCTION CO, L.P. - EAGLEVILLE (EAGLE FORD-2)

Survey FLORES, D G - Abstract 1 - Block and

Recently completedDocument FiledJun 25, 2026
View record
J HANDY A #1H

Karnes County - DEVON ENERGY PRODUCTION CO, L.P. - EAGLEVILLE (EAGLE FORD-2)

Survey FLORES, D G - Abstract 1 - Block and

Recently completedDocument FiledJun 24, 2026
View record
DIVER UNIT #19H

Karnes County - DEVON ENERGY PRODUCTION CO, L.P. - EAGLEVILLE (EAGLE FORD-2)

Survey FLORES, D G - Abstract 1 - Block and

Recently completedDocument FiledJun 23, 2026
View record
Related entities
MARATHON OIL EF LLCKarnes Longitude: -98.03944 Mag Reference: Grid North County
Source form explainers
W-1 drilling permitW-12 directional survey
Map point
HIERHOLZER QUAD SA B #1API 4225538368
100 ft

28.828223, -98.039828

Open in FutureWells map
Source note

Well pages combine public records, linked source documents, derived status signals, and normalized activity. Verify API, operator, status, production, location, and lifecycle facts against official records before relying on them.

Beta access

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