WELL · 42-013-35498 · DISTRICT 1

Heard Bower East Unit #06H

Y

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

Heard Bower East Unit #06H (API 42-013-35498) is a horizontal well in Atascosa County operated by Marathon Oil EF LLC, completed February 9, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 26, 2017, permitted to 12,020 ft.

It was permitted by Teal Operating, LLC and has since transferred to Marathon Oil EF LLC on the wellbore schedule.

Completion filings report 11 formation tops, including Queen City, Olmos, Anacacho, Austin Chalk.

Its lease has reported 743K barrels of oil and 895K mcf of gas since November 2011, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.

Operator of record

Marathon Oil EF LLC

Permitted by Teal Operating, LLC; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Aug 4, 2025 · 3,191 permits on file · (800) 332-9449

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMarathon Oil EF LLC
Production reportsMarathon Oil EF LLCthrough Apr 2026
Latest permitTeal Operating, LLCJun 26, 2017

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

12,020
total depth, ft
1
permits on file
Jun 26, 2017
last permit issued
Feb 9, 2023
completed
743K
cumulative oil, bbl
895K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 9, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.681539, -98.285600

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Atascosa 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 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Heard Bower East Unit O-1-15799Eagleville (Eagle Ford-1)Marathon Oil EF LLC6743K895KNov 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 12,078 · prior 12 13,661(-12%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 6,437 · prior 12 3,587(+79%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Cinco Natural Resources Corp.Nov 2011 → Feb 2013
  2. 2Aurora USA Development, LLCMar 2013 → May 2014
  3. 3Baytex USA Development, LLCJun 2014 → Jun 2016
  4. 4Teal Operating, LLCJul 2016 → Oct 2021
  5. 5Marathon Oil EF LLCNov 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
827922-99DrillTeal Operating, LLCJun 16, 2017Jun 26, 2017Aug 1, 201712,020

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-15799————

Formation tops

As filed on W-2/G-1. Subsea from 325 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City2,915-2,590
Olmos8,712-8,387
AnacachoANACACHO - H2S10,587-10,262
Austin Chalk10,905-10,580
Eagle Ford10,960-10,635
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL——
Bartosh——
Carrizo——
EscondidoESCONDIDO - H2S, DISPOSAL——
NavarroNAVARRO - H2S——
OlmosOLMOS - DISPOSAL——
Reklaw——
WilcoxWILCOX - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
11,38616,606Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,22112.251,490 S
5.516,6808.752,225 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
00Jun 2, 2023Mar 31, 2023—
00Aug 7, 2018Nov 17, 2017Yes

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

Open the cross-section →

Heard Bower Central West42-013-35566

1.2 KM · Teal Operating, LLC · Section with this well →

Midway6,972-6,672
Olmos8,300-8,000
Austin Chalk10,835-10,535
Eagle Ford10,867-10,567
Carrizo—
Navarro—
Bartosh—
Reklaw—

10 TOPS · FIRST 8

Heard Bower West Unit42-013-35663

1.5 KM · Teal Operating, LLC · Section with this well →

Carrizo3,900-3,641
Anacacho10,479-10,220
Austin Chalk10,775-10,516
Bartosh—
Escondido—
Navarro—
Olmos—
Queen City—

10 TOPS · FIRST 8

Heard Bower West Unit42-013-35664

1.6 KM · Teal Operating, LLC · Section with this well →

Carrizo3,900-3,641
Anacacho10,479-10,220
Austin Chalk10,775-10,516
Escondido—
Olmos—
Queen City—
Reklaw—
Navarro—

10 TOPS · FIRST 8

Edmund Tom 0242-013-35932

1.6 KM · Silverbow Resources Oper, LLC · Section with this well →

Wilcox3,917-3,624
Olmos8,730-8,437
Anacacho10,410-10,117
Austin Chalk10,634-10,341
Queen City—
Reklaw—
Navarro—
Escondido—

10 TOPS · FIRST 8

Edmund Tom 0242-013-35931

1.6 KM · Silverbow Resources Oper, LLC · Section with this well →

Wilcox3,917-3,624
Olmos8,708-8,415
Anacacho10,388-10,095
Austin Chalk10,608-10,315
Escondido—
Navarro—
Bartosh—
Queen City—

10 TOPS · FIRST 8

Edmund Tom 0242-013-35930

1.6 KM · Silverbow Resources Oper, LLC · Section with this well →

Wilcox3,917-3,623
Escondido8,085-7,791
Olmos8,717-8,423
Anacacho10,358-10,064
Austin Chalk10,611-10,317
Navarro—
Queen City—
Carrizo—

10 TOPS · FIRST 8

Edmund Tom 02 A42-013-36217

1.6 KM · Silverbow Resources Oper, LLC · Section with this well →

Escondido7,228-6,925
Olmos8,861-8,558
Anacacho10,419-10,116
Austin Chalk10,658-10,355
Carrizo—
Navarro—
Bartosh—
Queen City—

10 TOPS · FIRST 8

Justin Tom 01 B42-013-36218

1.6 KM · Silverbow Resources Oper, LLC · Section with this well →

Midway6,830-6,527
Escondido7,239-6,936
Olmos8,901-8,598
San Miguel9,798-9,495
Navarro—
Queen City—
Reklaw—
Carrizo—

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/01335498, documented in the API reference.