TEXAS · WELLS · DE WITT COUNTY · BRUNS 01 LEASE · API 42-123-32677 · DISTRICT 02

Bruns 01 #04H

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De Witt County · De Witt (Eagle Ford Shale) field · Producing  · Horizontal

Bruns 01 #04H (API 42-123-32677) is a horizontal well in De Witt County operated by Marathon Oil EF LLC, completed July 7, 2012 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued January 23, 2012, permitted to 13,538 ft.

It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Marathon Oil EF LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Wilcox, Midway, Top Egfd.

Its lease has reported 472K barrels of oil and 1.56M mcf of gas since July 2012, last reporting volume in April 2026.

Operator of record

Marathon Oil EF LLC

Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.

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 permitPioneer Natural Res. USA, Inc.Jan 23, 2012

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

13,538
total depth, ft
1
permits on file
Jan 23, 2012
last permit issued
Jul 7, 2012
completed
472K
cumulative oil, bbl
1.56M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2012 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 7, 2012
Shut in
—
Plugged
—

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

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Bruns 01 G-2-268525De Witt (Eagle Ford Shale)Marathon Oil EF LLC1472K1.56MJul 2012 – Apr 2026

Gas, mcf lease total

Last 12 months 4,009 · prior 12 5,687(-30%)

05001K202420252026

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Jul 2012 → Sep 2019
  2. 2Ensign Operating LLCOct 2019 → Feb 2023
  3. 3Marathon Oil EF LLCMar 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
730214-99DrillPioneer Natural Res. USA, Inc.Dec 16, 2011Jan 23, 2012Mar 3, 201221,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 7, 2012Bruns 01 G-2-268525De Witt (Eagle Ford Shale)Marathon Oil EF LLCProducing13,538

Formation tops

As filed on W-2/G-1. Subsea from 397 ft elevation.Download CSV →

FormationMD ftSubsea
Wilcox6,215-5,818
Midway9,352-8,955
Top Egfd13,349-12,952

Perforations

Perforated and open-hole intervals.

FromToType
13,49018,371Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,20717.51,145 S
9.6259,64112.25440 S
5.518,4828.51,840 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jun 26, 2025Jun 9, 2025—
00Jul 8, 2013Aug 15, 2012Yes

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 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 →

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/12332677, documented in the API reference.