WELL · 42-255-37596 · DISTRICT 2

Janssen - Oetken 01 C #03H

Y

Karnes County · Sugarkane (Eagle Ford) field · Producing  · Horizontal

Janssen - Oetken 01 C #03H (API 42-255-37596) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed April 10, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 4, 2022, permitted to 23,000 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, Reklaw, Carrizo, Wilcox.

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 Mar 2026
Latest permitEnsign Operating LLCOct 4, 2022

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

23,000
total depth, ft
1
permits on file
Oct 4, 2022
last permit issued
Apr 10, 2023
completed
0
cumulative oil, bbl
1.52M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2022 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 10, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.910221, -97.712647

OpenStreetMap → ·  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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Janssen - Oetken 01 C G-2-294654Sugarkane (Eagle Ford)Marathon Oil EF LLC101.52MDec 2022 – Jul 2026

Gas, mcf lease total

Last 12 months 85,442 · prior 12 251,010(-66%)

0100K200K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCApr 2023 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
883515-99DrillEnsign Operating LLCAug 29, 2022Oct 4, 2022Feb 19, 202323,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-294654————

Formation tops

As filed on W-2/G-1. Subsea from 340 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City5,651-5,311
Reklaw5,942-5,602
Carrizo6,172-5,832
WilcoxWILCOX - DISPOSAL6,172-5,832
Austin ChalkAUSTIN CHALK - H2S13,116-12,776
Eagle FordEAGLE FORD - H2S13,313-12,973
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——
YeguaYEGUA - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
13,62820,541Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,54012.251,462 S
5.520,6078.754,733 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
00Aug 10, 2023Jun 26, 2023Yes
00May 31, 2023May 17, 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 →

Janssen - Oetken 01 D42-255-37597

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

Queen City5,633-5,294
Reklaw5,950-5,611
Wilcox6,184-5,845
Carrizo6,184-5,845
Austin Chalk13,147-12,808
Eagle Ford13,277-12,938
Edwards—
Yegua—

10 TOPS · FIRST 8

Janssen - Oetken 01 B42-255-37595

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

Queen City5,653-5,311
Reklaw5,961-5,619
Carrizo6,170-5,828
Wilcox6,190-5,848
Austin Chalk13,107-12,765
Eagle Ford13,349-13,007
Edwards—
Frio—

10 TOPS · FIRST 8

Janssen - Oetken 01 E42-255-37598

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

Queen City5,620-5,282
Reklaw5,951-5,613
Carrizo6,183-5,845
Wilcox6,183-5,845
Austin Chalk13,178-12,840
Eagle Ford13,199-12,861
Frio—
Edwards—

10 TOPS · FIRST 8

Janssen - Oetken 01 A42-255-37594

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

Queen City5,666-5,323
Reklaw5,947-5,604
Carrizo6,180-5,837
Wilcox6,180-5,837
Austin Chalk13,096-12,753
Eagle Ford13,381-13,038
Sligo—
Frio—

10 TOPS · FIRST 8

Debill-Liska SA142-255-37996

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

Queen City4,466-4,174
Reklaw5,019-4,727
Carrizo5,937-5,645
Wilcox6,138-5,846
Austin Chalk13,001-12,709
Eagle Ford13,267-12,975
Yegua—
Sligo—

10 TOPS · FIRST 8

Liska-Elizondo SA142-255-37998

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

Queen City4,466-4,175
Reklaw5,019-4,728
Carrizo5,937-5,646
Wilcox6,138-5,847
Austin Chalk12,982-12,691
Eagle Ford13,214-12,923
Yegua—
Frio—

10 TOPS · FIRST 8

Debill 0142-255-34490

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

Frio594-234
Yegua2,929-2,569
Queen City5,199-4,839
Reklaw5,399-5,039
Carrizo6,139-5,779
Wilcox9,349-8,989
Austin Chalk12,994-12,634
Eagle Ford13,345-12,985

10 TOPS · FIRST 8

Yanta Cattle Co. a-288 #2 GU42-255-37839

2.0 KM · Burlington Resources O & G Co LP · Section with this well →

Frio1,405-1,124
Yegua2,207-1,926
Queen City4,680-4,399
Reklaw5,522-5,241
Carrizo5,804-5,523
Wilcox5,965-5,684
Austin Chalk12,882-12,601
Eagle Ford13,105-12,824

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/25537596, documented in the API reference.