TEXAS · WELLS · KARNES COUNTY · L.B. HAILEY-DAVILA-BAILEY SA LEASE · API 42-255-37855 · DISTRICT 02

L.B. Hailey-Davila-Bailey SA #1H

Y

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

L.B. Hailey-Davila-Bailey SA #1H (API 42-255-37855) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed April 10, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued September 12, 2023, permitted to 12,241 ft.

Completion filings report 12 formation tops, including Cook Mountain, Queen City, Reklaw, Carrizo.

No lease production has been reported under this well’s leases.

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 12, 2023
12,241
total depth, ft
2
permits on file
Sep 12, 2023
last permit issued
Apr 10, 2024
completed
0
cumulative oil, bbl
1.34M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 10, 2024
Shut in
—
Plugged
—

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

Surface location

28.796747, -98.007261

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
L.B. Hailey-Davila-Bailey SA G-2-296240Eagleville (Eagle Ford-2)Marathon Oil EF LLC101.34MNov 2023 – Jul 2026

Gas, mcf lease total

Last 12 months 589,228 · prior 12 709,445(-17%)

050K100K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCApr 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
893437-98DrillMarathon Oil EF LLCSep 14, 2023Sep 12, 2023Oct 8, 202322,000
893437-99DrillMarathon Oil EF LLCSep 5, 2023Sep 12, 2023Oct 8, 202322,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 10, 2024L.B. Hailey-Davila-Bailey SA G-2-296240Eagleville (Eagle Ford-2)Marathon Oil EF LLCProducing12,241

Formation tops

As filed on W-2/G-1. Subsea from 479 ft elevation.Download CSV →

FormationMD ftSubsea
Cook Mountain2,932-2,453
Queen City3,939-3,460
Reklaw4,473-3,994
Carrizo4,874-4,395
WilcoxWILCOX - DISPOSAL4,930-4,451
Anacacho11,529-11,050
Austin ChalkAUSTIN CHALK - H2S11,679-11,200
Eagle FordEAGLE FORD - H2S11,831-11,352
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——
YeguaYEGUA - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
11,91017,505Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6256,07412.251,480 S
9.0596,07412.251,480 S
5.524,1318.754,511 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
00Sep 30, 2024Aug 13, 2024—
00Feb 1, 2024Jan 17, 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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

L.B. Hailey AC42-255-37852

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

Queen City3,939-3,460
Reklaw4,473-3,994
Carrizo4,874-4,395
Wilcox4,930-4,451
Austin Chalk11,674-11,195
Edwards—
Eagle Ford—
Yegua—

10 TOPS · FIRST 8

L.B. Hailey Unit42-255-37853

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

Cook Mountain2,932-2,452
Queen City3,939-3,459
Reklaw4,473-3,993
Carrizo4,874-4,394
Wilcox4,930-4,450
Anacacho11,528-11,048
Austin Chalk11,671-11,191
Eagle Ford11,830-11,350

12 TOPS · FIRST 8

L.B. Hailey-Best Fenner SA42-255-37854

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

Cook Mounatain2,932-2,452
Queen City3,939-3,459
Reklaw4,473-3,993
Carrizo4,874-4,394
Wilcox4,930-4,450
Austin Chalk11,658-11,178
Eagle Ford11,811-11,331
Sligo—

11 TOPS · FIRST 8

L.B. Hailey-Davila-St. Ger SA42-255-37856

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

Cook Mountain2,932-2,452
Queen City3,939-3,459
Reklaw4,473-3,993
Carrizo4,874-4,394
Wilcox4,930-4,450
Anacacho11,510-11,030
Austin Chalk11,657-11,177
Eagle Ford11,803-11,323

12 TOPS · FIRST 8

Davila-Graham Unit AC42-255-34892

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

Yegua1,592-1,153
Queen City3,866-3,427
Reklaw4,433-3,994
Carrizo4,788-4,349
Wilcox6,099-5,660
Austin Chalk11,698-11,259
Edwards—
Eagle Ford—

10 TOPS · FIRST 8

Davila-Graham Unit42-255-34891

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

Yegua1,592-1,153
Queen City3,866-3,427
Reklaw4,433-3,994
Carrizo4,788-4,349
Wilcox6,099-5,660
Austin Chalk11,700-11,261
Eagle Ford11,829-11,390
Sligo—

10 TOPS · FIRST 8

Davila-Graham Unit42-255-34890

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

Yegua1,592-1,153
Queen City3,866-3,427
Reklaw4,433-3,994
Carrizo4,788-4,349
Wilcox6,099-5,660
Austin Chalk11,701-11,262
Eagle Ford11,835-11,396
Edwards—

10 TOPS · FIRST 8

L.B. Hailey-Morgan SA42-255-37149

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

Queen City3,932-3,487
Reklaw4,404-3,959
Carrizo5,032-4,587
Wilcox5,077-4,632
Austin Chalk11,935-11,490
Eagle Ford12,061-11,616
Frio—
Yegua—

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/25537855, documented in the API reference.