WELL · 42-255-37249 · DISTRICT 2

Salge Unit #501H

Y

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

Salge Unit #501H (API 42-255-37249) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed August 28, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued September 9, 2021, permitted to 22,000 ft.

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

Its lease has reported 804K barrels of oil and 1.38M mcf of gas since April 2011, last reporting in July 2026. The lease carries 3 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 LLCSep 9, 2021
22,000
total depth, ft
1
permits on file
Sep 9, 2021
last permit issued
Aug 28, 2022
completed
804K
cumulative oil, bbl
1.38M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 28, 2022
Shut in
—
Plugged
—

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

Surface location

28.883572, -97.922758

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; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Salge Unit O-2-9807Eagleville (Eagle Ford-2)Marathon Oil EF LLC3804K1.38MApr 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 29,345 · prior 12 36,519(-20%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 55,434 · prior 12 75,089(-26%)

010K20K202420252026

Chain of custody

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

  1. 1Hilcorp Energy CompanyMay 2011 → Oct 2011
  2. 2Marathon Oil EF LLCNov 2011 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
871390-99DrillMarathon Oil EF LLCJul 20, 2021Sep 9, 2021Jun 9, 202222,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-9807————

Formation tops

As filed on W-2/G-1. Subsea from 416 ft elevation.Download CSV →

FormationMD ftSubsea
YeguaYEGUA - DISPOSAL1,964-1,548
Queen City3,965-3,549
Reklaw4,444-4,028
Carrizo5,042-4,626
WilcoxWILCOX - DISPOSAL7,318-6,902
Austin ChalkAUSTIN CHALK - H2S11,867-11,451
Eagle FordEAGLE FORD - H2S11,980-11,564
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
12,31218,526Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6256,04412.251,754 S
618,5268.753,800 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
00Mar 31, 2025Feb 19, 2025Yes
00Apr 28, 2023Mar 23, 2023—
00Oct 27, 2022Sep 26, 2022—
00Aug 18, 2022Jul 21, 2022Yes

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

Open the cross-section →

McCoy-Egbert Unit42-255-32804

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

Anacacho11,581-11,161
Austin Chalk11,723-11,303
Eagle Ford11,916-11,496

Egbert Unit42-255-37414

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

Yegua1,955-1,565
Queen City3,959-3,569
Reklaw4,432-4,042
Carrizo5,039-4,649
Wilcox5,089-4,699
Austin Chalk11,832-11,442
Eagle Ford12,005-11,615
Edwards—

10 TOPS · FIRST 8

Egbert Unit42-255-37415

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

Yegua1,955-1,565
Queen City3,959-3,569
Reklaw4,432-4,042
Carrizo5,039-4,649
Wilcox5,089-4,699
Austin Chalk11,820-11,430
Eagle Ford11,994-11,604
Sligo—

10 TOPS · FIRST 8

Egbert Unit42-255-37416

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

Yegua1,955-1,565
Queen City3,959-3,569
Reklaw4,432-4,042
Carrizo5,039-4,649
Wilcox6,175-5,785
Austin Chalk11,838-11,448
Eagle Ford11,945-11,555
Edwards—

10 TOPS · FIRST 8

Carter Unit42-255-36374

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

Yegua1,625-1,277
Queen City3,796-3,448
Reklaw4,230-3,882
Carrizo4,779-4,431
Wilcox6,093-5,745
Austin Chalk11,591-11,243
Eagle Ford11,817-11,469
Frio—

10 TOPS · FIRST 8

Carter Unit42-255-36373

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

Yegua1,625-1,277
Queen City3,796-3,448
Reklaw4,230-3,882
Carrizo4,779-4,431
Wilcox6,093-5,745
Austin Chalk11,575-11,227
Eagle Ford11,789-11,441
Frio—

10 TOPS · FIRST 8

Spahn-Mikkelson Unit42-255-36375

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

Yegua1,625-1,278
Queen City3,796-3,449
Reklaw4,230-3,883
Carrizo4,779-4,432
Wilcox6,093-5,746
Austin Chalk11,545-11,198
Eagle Ford11,768-11,421
Edwards—

10 TOPS · FIRST 8

Spahn-Mikkelson Unit42-255-36376

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

Yegua1,625-1,278
Queen City3,796-3,449
Reklaw4,230-3,883
Carrizo4,779-4,432
Wilcox6,093-5,746
Austin Chalk11,560-11,213
Eagle Ford11,801-11,454
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/25537249, documented in the API reference.