WELL · 42-177-34695 · DISTRICT 1

Barnhart (EF) #63H

Y

Gonzales County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

Barnhart (EF) #63H (API 42-177-34695) is a horizontal well in Gonzales County operated by Marathon Oil EF LLC, completed September 11, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued April 17, 2024, permitted to 22,000 ft.

Completion filings report 8 formation tops, including Reklaw, Carrizo, Wilcox, Austin Chalk.

Its lease has reported 15M barrels of oil and 18.4M mcf of gas since November 2010, last reporting in July 2026. The lease carries 60 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 LLCApr 17, 2024
22,000
total depth, ft
2
permits on file
Apr 17, 2024
last permit issued
Sep 11, 2024
completed
15M
cumulative oil, bbl
18.4M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 11, 2024
Shut in
—
Plugged
—

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

Surface location

29.238528, -97.476303

Google Maps ↗

Permit surface location from the RRC GIS record, in Gonzales 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 60 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Barnhart (EF) O-1-15397Eagleville (Eagle Ford-1)Marathon Oil EF LLC6015M18.4MNov 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 1,174,908 · prior 12 1,325,612(-11%)

0100K200K202420252026

Gas, mcf lease total

Last 12 months 1,401,133 · prior 12 1,796,482(-22%)

0100K200K300K202420252026

Chain of custody

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

  1. 1Hilcorp Energy CompanyDec 2010 → Oct 2011
  2. 2Marathon Oil EF LLCNov 2011 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
898741-98DrillMarathon Oil EF LLCDec 19, 2024Apr 17, 2024Jun 14, 202422,000
898741-99DrillMarathon Oil EF LLCApr 9, 2024Apr 17, 2024Jun 14, 202422,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-15397————

Formation tops

As filed on W-2/G-1. Subsea from 298 ft elevation.Download CSV →

FormationMD ftSubsea
Reklaw3,336-3,038
Carrizo3,956-3,658
WilcoxWILCOX - DISPOSAL4,094-3,796
Austin ChalkAUSTIN CHALK - H2S11,105-10,807
Eagle FordEAGLE FORD - H2S11,765-11,467
BudaBUDA - H2S, DISPOSAL——
EdwardsEDWARDS - H2S——
Navarro——

Perforations

Perforated and open-hole intervals.

FromToType
12,18719,027Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,04712.251,333 S
5.519,0188.753,282 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 3, 2025Dec 4, 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 →

Barnhart (EF)42-177-34696

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

Reklaw3,336-3,068
Carrizo3,956-3,688
Wilcox4,094-3,826
Austin Chalk11,000-10,732
Eagle Ford11,645-11,377
Buda—
Navarro—
Edwards—

Barnhart (EF)42-177-34697

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

Reklaw3,336-3,068
Carrizo3,956-3,688
Wilcox4,094-3,826
Austin Chalk11,001-10,733
Eagle Ford11,631-11,363
Buda—
Edwards—
Navarro—

Barnhart (EF)42-177-34698

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

Reklaw3,336-3,069
Carrizo3,956-3,689
Wilcox4,094-3,827
Austin Chalk10,995-10,728
Eagle Ford11,640-11,373
Navarro—
Edwards—
Buda—

Barnhart Grand F Unit-E Unit SA42-177-34519

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

Reklaw3,310-3,063
Wilcox3,875-3,628
Carrizo3,875-3,628
Austin Chalk11,072-10,825
Eagle Ford11,792-11,545
Buda—
Edwards—
Navarro—

Barnhart (EF) F Unit42-177-34520

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

Reklaw3,310-3,063
Carrizo3,875-3,628
Wilcox4,021-3,774
Austin Chalk11,075-10,828
Eagle Ford11,793-11,546
Edeards - H2S—
Navarro—
Narvarro—

10 TOPS · FIRST 8

Barnhart (EF) F Unit42-177-34521

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

Reklaw3,310-3,063
Carrizo3,875-3,628
Wilcox4,021-3,774
Austin Chalk11,087-10,840
Eagle Ford11,753-11,506
Navarro—
Buda—
Edwards—

Barnhart (EF) F Unit-A Unit SA42-177-34522

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

Reklaw3,310-3,063
Carrizo3,875-3,628
Wilcox4,021-3,774
Austin Chalk11,079-10,832
Eagle Ford11,751-11,504
Buda—
Edwards—
Navarro—

Zion A42-177-34067

1.2 KM · EOG Resources, Inc. · Section with this well →

Reklaw3,710-3,470
Wilcox4,228-3,988
Carrizo4,315-4,075
Navarro9,541-9,301
Anacacho10,911-10,671
Austin Chalk11,339-11,099
Eagle Ford11,783-11,543
Edwards—

9 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/17734695, documented in the API reference.