WELL · 42-297-36279 · DISTRICT 2

Three Sisters 01 #70H

Y

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

Three Sisters 01 #70H (API 42-297-36279) is a horizontal well in Live Oak County operated by Marathon Oil EF LLC, completed June 16, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued July 21, 2022, permitted to 22,500 ft.

It was permitted by Ensign Operating LLC and has since transferred to Marathon Oil EF LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Queen City, Wilcox, Austin Chalk, Eagle Ford.

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

Operator of record

Marathon Oil EF LLC

Permitted by Ensign Operating LLC; the EWA schedule now lists a different operator.

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 permitEnsign Operating LLCJul 21, 2022

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

22,500
total depth, ft
1
permits on file
Jul 21, 2022
last permit issued
Jun 16, 2023
completed
0
cumulative oil, bbl
3.22M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 16, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.549143, -98.238920

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-2-295035Sugarkane (Eagle Ford)Marathon Oil EF LLC103.22MMar 2023 – Jul 2026

Gas, mcf lease total

Last 12 months 464,049 · prior 12 887,045(-48%)

0100K200K300K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCJun 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
882243-99DrillEnsign Operating LLCJul 19, 2022Jul 21, 2022May 8, 202322,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-295035————

Formation tops

As filed on W-2/G-1. Subsea from 200 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City4,839-4,639
Wilcox5,239-5,039
Austin Chalk12,675-12,475
Eagle FordEAGLE FORD - H2S12,716-12,516
Cook Mountain——
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
Hockley - Disposal——
JacksonJACKSON-YEGUA - DISPOSAL——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
12,85619,675Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6256,44312.251,591 S
8.7519,6759.6253,669 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
00Oct 5, 2023Sep 7, 2023Yes
00Jul 20, 2023Jun 20, 2023Yes

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 0142-297-36278

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

Queen City4,839-4,640
Wilcox5,239-5,040
Austin Chalk12,672-12,473
Eagle Ford12,704-12,505
Hockley - Disposal—
Jackson—
Sligo—
Cook Mountain—

10 TOPS · FIRST 8

Three Sisters 0142-297-36277

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

Queen City4,839-4,640
Wilcox5,239-5,040
Austin Chalk12,663-12,464
Eagle Ford12,697-12,498
Edwards—
Cook Mountain—
Sligo—
Hockley - Disposal—

10 TOPS · FIRST 8

Three Sisters 0142-297-36276

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

Queen City4,839-4,640
Wilcox5,239-5,040
Austin Chalk12,579-12,380
Eagle Ford12,622-12,423
Cook Mountain—
Sligo—
Frio—
Hockley - Disposal—

10 TOPS · FIRST 8

Three Sisters 0142-297-35782

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Frio250-42
Hockley - Disposal740-532
Jackson1,459-1,251
Cook Mountain2,535-2,327
Queen City3,792-3,584
Wilcox5,162-4,954
Austin Chalk12,226-12,018
Eagle Ford12,453-12,245

10 TOPS · FIRST 8

Three Sisters 0142-297-35934

0.8 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Hockley - Disposal559-314
Jackson1,260-1,015
Cook Mountain2,619-2,374
Queen City3,559-3,314
Wilcox5,108-4,863
Austin Chalk12,428-12,183
Eagle Ford12,550-12,305
Edwards—

10 TOPS · FIRST 8

Three Sisters 0142-297-35824

0.8 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Hockley - Disposal560-314
Jackson1,261-1,015
Cook Mountain2,639-2,393
Queen City3,549-3,303
Wilcox5,136-4,890
Austin Chalk12,428-12,182
Eagle Ford12,559-12,313
Edwards—

10 TOPS · FIRST 8

Three Sisters 0142-297-35785

0.8 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Hockley - Disposal548-301
Jackson1,263-1,016
Cook Mountain2,654-2,407
Queen City3,588-3,341
Wilcox5,107-4,860
Austin Chalk12,397-12,150
Eagle Ford12,568-12,321
Sligo—

10 TOPS · FIRST 8

Three Sisters 0142-297-36122

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

Wilcox4,951-4,687
Austin Chalk12,563-12,299
Eagle Ford12,596-12,332
Frio—
Sligo—
Edwards—
Cook Mountain—
Queen City—

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/29736279, documented in the API reference.