WELL · 42-297-36403 · DISTRICT 2

Three Sisters 01 #75H

Y

Live Oak County · Sugarkane (Eagle Ford) field · Producing  · Horizontal

Three Sisters 01 #75H (API 42-297-36403) is a horizontal well in Live Oak County operated by Marathon Oil EF LLC, completed April 30, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued January 25, 2024, permitted to 22,000 ft.

Completion filings report 12 formation tops, including Cook Mountain, Queen City, Reklaw, Wilcox.

No lease production has been reported under this well’s leases.

Operator of record

Marathon Oil EF LLC

Houston, TX · P-5 Y, filed Aug 4, 2025 · 3,191 permits on file · (800) 332-9449

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 LLCJan 25, 2024
22,000
total depth, ft
1
permits on file
Jan 25, 2024
last permit issued
Apr 30, 2024
completed
0
cumulative oil, bbl
748K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2024 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 30, 2024
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.575431, -98.234346

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Live Oak 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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Three Sisters 01 G-2-297273Sugarkane (Eagle Ford)Marathon Oil EF LLC10748KMar 2024 – Jul 2026

Gas, mcf lease total

Last 12 months 175,686 · prior 12 571,759(-69%)

050K100K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCApr 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
896716-99DrillMarathon Oil EF LLCJan 22, 2024Jan 25, 2024Feb 25, 202422,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-297273————

Formation tops

As filed on W-2/G-1. Subsea from 175 ft elevation.Download CSV →

FormationMD ftSubsea
Cook Mountain1,278-1,103
Queen City2,202-2,027
Reklaw2,847-2,672
Wilcox3,718-3,543
Anacacho11,998-11,823
Austin Chalk12,202-12,027
Eagle FordEAGLE FORD - H2S12,249-12,074
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
Hockley - Disposal——
JacksonJACKSON-YEGUA - DISPOSAL——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
12,46017,324Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6256,50512.251,585 S
5.517,3248.753,206 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
00Sep 16, 2024Aug 14, 2024—
00Jul 8, 2024May 22, 2024Yes

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 neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Three Sisters 0142-297-36404

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

Cook Mountain1,278-1,103
Queen City2,202-2,027
Reklaw2,847-2,672
Wilcox3,718-3,543
Anacacho11,998-11,823
Austin Chalk12,202-12,027
Eagle Ford12,249-12,074
Hockley - Disposal—

12 TOPS · FIRST 8

Three Sisters 01 - Wilbur E 01 A42-297-36297

0.5 KM · Ensign Operating LLC · Section with this well →

Queen City3,433-3,257
Wilcox4,731-4,555
Austin Chalk12,417-12,241
Eagle Ford12,493-12,317
Cook Mountain—
Jackson—
Hockley - Disposal—
Frio—

10 TOPS · FIRST 8

Three Sisters 01 - Wilbur E 01 B42-297-36298

0.5 KM · Ensign Operating LLC · Section with this well →

Queen City3,343-3,167
Wilcox4,080-3,904
Reklaw4,080-3,904
Austin Chalk12,405-12,229
Eagle Ford12,478-12,302
Cook Mountain—
Sligo—
Jackson—

11 TOPS · FIRST 8

Three Sisters 01 - Wilbur E 01 C42-297-36299

0.6 KM · Ensign Operating LLC · Section with this well →

Queen City3,343-3,167
Reklaw4,080-3,904
Wilcox4,731-4,555
Anacacho12,132-11,956
Austin Chalk12,132-11,956
Eagle Ford12,440-12,264
Edwards—
Cook Mountain—

12 TOPS · FIRST 8

Three Sisters 01 - Wilbur E 01 D42-297-36300

0.6 KM · Ensign Operating LLC · Section with this well →

Queen City343-168
Wilcox4,731-4,556
Austin Chalk12,358-12,183
Eagle Ford12,439-12,264
Jackson—
Hockley - Disposal—
Frio—
Edwards—

10 TOPS · FIRST 8

Three Sisters 01 - WK01 A42-297-36231

1.3 KM · Ensign Operating LLC · Section with this well →

Queen City3,743-3,572
Wilcox4,961-4,790
Austin Chalk12,421-12,250
Eagle Ford12,473-12,302
Cook Mountain—
Sligo—
Jackson—
Hockley - Disposal—

10 TOPS · FIRST 8

Three Sisters 01 - WK01 B42-297-36232

1.3 KM · Ensign Operating LLC · Section with this well →

Queen City3,647-3,475
Wilcox5,089-4,917
Austin Chalk12,426-12,254
Eagle Ford12,519-12,347
Edwards—
Frio—
Hockley - Disposal—
Jackson—

10 TOPS · FIRST 8

Three Sisters 01 - WK01 C42-297-36233

1.3 KM · Ensign Operating LLC · Section with this well →

Queen City3,647-3,475
Wilcox5,125-4,953
Austin Chalk12,460-12,288
Eagle Ford12,522-12,350
Jackson—
Edwards—
Frio—
Hockley - Disposal—

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/29736403, documented in the API reference.