WELL · 42-255-34364 · DISTRICT 2

Franke-May Unit A #4H

Y

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

Franke-May Unit A #4H (API 42-255-34364) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed September 1, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued November 21, 2014, permitted to 19,500 ft.

Completion filings report 10 formation tops, including Frio, Yegua, Queen City, Reklaw.

Its lease has reported 1.73M barrels of oil and 2.11M mcf of gas since April 2014, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.

Operator of record

Marathon Oil EF LLC

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Sep 26, 2025
Permits on file
3,191
Phone
(832) 486-2737

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 LLCNov 21, 2014
19,500
total depth, ft
1
permits on file
Nov 21, 2014
last permit issued
Sep 1, 2021
completed
1.73M
cumulative oil, bbl
2.11M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 1, 2021
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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; they carry 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Franke-May Unit A O-2-10788Eagleville (Eagle Ford-2)Marathon Oil EF LLC61.73M2.11MApr 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 30,996 · prior 12 33,171(-7%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 24,796 · prior 12 30,766(-19%)

05K10K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCApr 2014 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
800658-99DrillMarathon Oil EF LLCNov 20, 2014Nov 21, 2014Dec 28, 201619,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-10788————

Formation tops

As filed on W-2/G-1. Subsea from 469 ft elevation.Download CSV →

FormationMD ftSubsea
FrioFRIO - DISPOSAL830-361
YeguaYEGUA - DISPOSAL1,390-921
Queen City2,170-1,701
Reklaw2,171-1,702
Carrizo3,403-2,934
WilcoxWILCOX - DISPOSAL5,434-4,965
Austin ChalkAUSTIN CHALK - H2S10,768-10,299
Eagle FordEAGLE FORD - H2S10,969-10,500
EdwardsEDWARDS - H2S——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
11,40018,353Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,45512.251,645 S
5.518,4118.52,045 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 4, 2021Sep 16, 2021—
00Nov 14, 2019Aug 5, 2019—
00Feb 27, 2017Feb 14, 2017Yes
00Jul 27, 2016Jul 21, 2016Yes

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.

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/25534364, documented in the API reference.