WELL · 42-255-38055 · DISTRICT 2

Rippstein Mikkelson-Witte SA1 #1H

Y

Karnes County · Eagleville (Eagle Ford-2) field · Producing  · Horizontal

Rippstein Mikkelson-Witte Sa1 #1H (API 42-255-38055) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed July 5, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 15, 2024, permitted to 22,000 ft.

Completion filings report 10 formation tops, including Queen City, Reklaw, Carrizo, Wilcox.

Its lease has reported 159K barrels of oil and 333K mcf of gas since July 2024, last reporting in July 2026.

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 LLCApr 15, 2024
22,000
total depth, ft
1
permits on file
Apr 15, 2024
last permit issued
Jul 5, 2024
completed
159K
cumulative oil, bbl
333K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2024 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 5, 2024
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.873531, -97.940258

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
Rippstein Mikkelson-Witte SA1 O-2-12882Eagleville (Eagle Ford-2)Marathon Oil EF LLC1159K333KJul 2024 – Jul 2026

Oil, barrels lease total

Last 12 months 36,915 · prior 12 121,930(-70%)

020K40K202420252026

Gas, mcf lease total

Last 12 months 87,540 · prior 12 245,658(-64%)

020K40K60K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCJul 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
898686-99DrillMarathon Oil EF LLCApr 8, 2024Apr 15, 2024May 17, 202422,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-12882————

Formation tops

As filed on W-2/G-1. Subsea from 409 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City3,927-3,518
Reklaw4,430-4,021
Carrizo4,950-4,541
WilcoxWILCOX - DISPOSAL6,222-5,813
Austin ChalkAUSTIN CHALK - H2S11,725-11,316
Eagle FordEAGLE FORD - H2S11,960-11,551
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——
YeguaYEGUA - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
12,37718,172Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,69712.251,545 S
5.518,1418.753,253 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
00Jan 23, 2025Dec 31, 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 →

Mikkelson-Witte Unit42-255-38056

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

Queen City3,927-3,518
Reklaw4,430-4,021
Carrizo4,950-4,541
Wilcox6,222-5,813
Austin Chalk11,734-11,325
Eagle Ford11,960-11,551
Sligo—
Frio—

10 TOPS · FIRST 8

Kempe-Laubach Unit42-255-37247

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

Yegua1,729-1,329
Queen City3,893-3,493
Reklaw4,350-3,950
Carrizo4,840-4,440
Wilcox6,075-5,675
Austin Chalk11,709-11,309
Eagle Ford11,932-11,532
Frio—

10 TOPS · FIRST 8

Kempe-Laubach Unit42-255-37246

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

Yegua1,729-1,329
Queen City3,893-3,493
Reklaw4,350-3,950
Carrizo4,840-4,440
Wilcox6,075-5,675
Austin Chalk11,701-11,301
Eagle Ford11,936-11,536
Edwards—

10 TOPS · FIRST 8

Kempe-Laubach Unit42-255-37248

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

Yegua1,910-1,511
Queen City3,849-3,450
Reklaw4,354-3,955
Wilcox6,150-5,751
Austin Chalk11,689-11,290
Eagle Ford11,923-11,524
Frio—
Edwards—

10 TOPS · FIRST 8

Y. Witte-K.laubach Psa42-255-36482

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

Yegua1,753-1,353
Queen City3,877-3,477
Reklaw4,374-3,974
Carrizo5,012-4,612
Wilcox6,327-5,927
Austin Chalk11,615-11,215
Eagle Ford11,837-11,437
Frio—

10 TOPS · FIRST 8

Yosko-Kinkler-Witte Psa42-255-36491

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

Yegua1,753-1,354
Queen City3,877-3,478
Reklaw4,374-3,975
Carrizo5,012-4,613
Wilcox6,327-5,928
Austin Chalk11,570-11,171
Eagle Ford11,778-11,379
Edwards—

10 TOPS · FIRST 8

Salge-Busselman Unit42-255-36480

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

Yegua1,753-1,354
Queen City3,877-3,478
Reklaw4,374-3,975
Carrizo5,012-4,613
Wilcox6,327-5,928
Austin Chalk11,585-11,186
Eagle Ford11,785-11,386
Sligo—

10 TOPS · FIRST 8

Salge-Busselman Unit42-255-36481

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

Yegua1,753-1,355
Queen City3,877-3,479
Reklaw4,374-3,976
Carrizo5,012-4,614
Wilcox6,327-5,929
Austin Chalk11,574-11,176
Eagle Ford11,765-11,367
Sligo—

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/25538055, documented in the API reference.