TEXAS · WELLS · KARNES COUNTY · ELIZONDO 01 LEASE · API 42-255-38101 · DISTRICT 02

Elizondo 01 #09H

On schedule

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

Elizondo 01 #09H (API 42-255-38101) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed July 28, 2025 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued August 6, 2024, permitted to 13,280 ft.

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

Its lease has reported 201K barrels of oil and 1.05M mcf of gas since February 2025, last reporting volume in August 2026.

Operator of record

Marathon Oil EF LLC

Based in: Houston, TX
P-5 status: Active – Extension (X)
P-5 last filed: Oct 13, 2026
Permits on file: 3,191
Phone: (832) 486-2737

Create operator alert

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Marathon Oil EF LLC
Production reports	Marathon Oil EF LLCthrough Mar 2026
Latest permit	Marathon Oil EF LLCAug 6, 2024

13,280: total depth, ft
1: permits on file
Aug 6, 2024: last permit issued
Jul 28, 2025: completed
201K: cumulative oil, bbl
1.05M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · JUL 2025 THROUGH AUG 2026

On this page10 formation tops Lease production Draw a cross-section →

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Jul 28, 2025
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

28.928597, -97.728689 NAD27, as filed

28.928851, -97.728966 WGS84

Google Maps ↗

Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Karnes County.

Wells nearby

Withinmiles

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Elizondo 01 G-2-301388	Sugarkane (Eagle Ford)	Marathon Oil EF LLC	1	201K	1.05M	Feb 2025 – Aug 2026

Gas, mcf lease total

Last 12 months 817,008 · prior 12 229,551(+256%)

Wells named Elizondo 01

Marathon Oil EF LLC's other wells filed under this lease name in Karnes County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

1Marathon Oil EF LLCJul 2025 → Aug 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
900846-99	Drill	Marathon Oil EF LLC	Jun 25, 2024	Aug 6, 2024	Jan 28, 2025	24,000

Completions

Completed	Lease	Field	Operator	Status	Depth
Jul 28, 2025	Elizondo 01 G-2-301388	Sugarkane (Eagle Ford)	Marathon Oil EF LLC	Producing	13,280

Formation tops

As filed on W-2/G-1. Subsea from 324 ft elevation.Download CSV →

Formation	MD ft	Subsea
Queen City	4,451	-4,127
Reklaw	4,944	-4,620
Carrizo	5,818	-5,494
WilcoxWILCOX - DISPOSAL	6,010	-5,686
Austin ChalkAUSTIN CHALK - H2S	12,914	-12,590
Eagle FordEAGLE FORD - H2S	13,133	-12,809
EdwardsEDWARDS - H2S	—	—
FrioFRIO - DISPOSAL	—	—
SligoSLIGO - H2S	—	—
YeguaYEGUA - DISPOSAL	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
13,256	16,185	Perforated
17,008	20,168	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	4,638	12.25	1,316 S
5.5	20,178	8.75	4,074 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

Suffix	RRC record date	W-2 / G-1 date	Logs referenced
00	Sep 14, 2026	Jul 30, 2026	—
00	May 8, 2026	Apr 6, 2026	Yes

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.

Wellbore filings for 42-255-38101 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-255-38101 → scanned completion filings

Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

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 →

Elizondo 0142-255-38100

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

Queen City	4,451	-4,126
Reklaw	4,944	-4,619
Carrizo	5,818	-5,493
Wilcox	6,010	-5,685
Austin Chalk	12,895	-12,570
Eagle Ford	13,120	-12,795
Edwards	—
Frio	—

10 TOPS · FIRST 8

Elizondo 0142-255-38099

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

Queen City	4,451	-4,127
Reklaw	4,944	-4,620
Carrizo	5,818	-5,494
Wilcox	6,010	-5,686
Austin Chalk	12,894	-12,570
Eagle Ford	13,123	-12,799
Edwards	—
Sligo	—

10 TOPS · FIRST 8

Elizondo 0142-255-36215

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

Yegua	2,800	-2,491
Queen City	5,096	-4,787
Reklaw	5,348	-5,039
Wilcox	5,841	-5,532
Carrizo	5,841	-5,532
Austin Chalk	12,842	-12,533
Eagle Ford	13,082	-12,773
Frio	—

10 TOPS · FIRST 8

Elizondo 0142-255-36214

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

Yegua	2,800	-2,491
Queen City	5,096	-4,787
Reklaw	5,353	-5,044
Carrizo	5,845	-5,536
Wilcox	5,846	-5,537
Austin Chalk	12,844	-12,535
Eagle Ford	13,088	-12,779
Frio	—

10 TOPS · FIRST 8

Elizondo 0142-255-36213

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

Yegua	2,800	-2,491
Queen City	5,121	-4,812
Reklaw	5,346	-5,037
Wilcox	5,848	-5,539
Carrizo	5,848	-5,539
Austin Chalk	12,835	-12,526
Eagle Ford	13,076	-12,767
Sligo	—

10 TOPS · FIRST 8

Elizondo 0142-255-36212

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

Yegua	2,800	-2,492
Queen City	5,120	-4,812
Reklaw	5,343	-5,035
Carrizo	5,830	-5,522
Wilcox	5,830	-5,522
Austin Chalk	12,806	-12,498
Eagle Ford	13,055	-12,747
Sligo	—

10 TOPS · FIRST 8

Moy A42-255-37024

0.9 KM · BPX Operating Company · Section with this well →

Yegua	1,800	-1,501
Queen City	2,400	-2,101
Reklaw	3,000	-2,701
Carrizo	3,500	-3,201
Wilcox	5,934	-5,635
Midway	9,907	-9,608
Anacacho	12,704	-12,405
Austin Chalk	12,850	-12,551

12 TOPS · FIRST 8

Moy A42-255-37023

0.9 KM · BPX Operating Company · Section with this well →

Yegua	1,800	-1,501
Queen City	2,400	-2,101
Reklaw	3,000	-2,701
Carrizo	3,500	-3,201
Wilcox	5,923	-5,624
Midway	9,911	-9,612
Anacacho	12,691	-12,392
Austin Chalk	12,841	-12,542

12 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

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