TEXAS · WELLS · ATASCOSA COUNTY · WRIGHT-HENKE UNIT LEASE · API 42-013-35111 · DISTRICT 01

Wright-Henke Unit #4H

Shut in

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

Wright-Henke Unit #4H (API 42-013-35111) is a horizontal well in Atascosa County operated by Marathon Oil EF LLC, completed October 12, 2014 and listed as shut in on the RRC schedule, shut in November 1, 2023.

The RRC has issued one drilling permit, issued July 28, 2014, permitted to 11,085 ft.

Completion filings report 10 formation tops, including Queen City, Carrizo, Olmos, Anacacho.

Its lease has reported 764K barrels of oil and 1.17M mcf of gas since June 2013, last reporting in July 2026. The lease carries 5 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 Oct 2023
Latest permitMarathon Oil EF LLCJul 28, 2014
11,085
total depth, ft
1
permits on file
Jul 28, 2014
last permit issued
Oct 12, 2014
completed
764K
cumulative oil, bbl
1.17M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 12, 2014
Shut in
Nov 1, 2023
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; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Wright-Henke Unit O-1-17021Eagleville (Eagle Ford-1)Marathon Oil EF LLC5764K1.17MJun 2013 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 0

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

01K2K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCJul 2013 → Oct 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
790264-99DrillMarathon Oil EF LLCJun 24, 2014Jul 28, 2014Sep 24, 201418,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 12, 2014Wright-Henke Unit O-1-17021Eagleville (Eagle Ford-1)Marathon Oil EF LLCShut In · shut in Nov 1, 202311,085

Formation tops

As filed on W-2/G-1. Subsea from 338 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City830-492
Carrizo1,580-1,242
OlmosOLMOS - DISPOSAL1,820-1,482
AnacachoANACACHO - H2S1,830-1,492
Reklaw1,900-1,562
EscondidoESCONDIDO - H2S, DISPOSAL2,600-2,262
Bartosh3,150-2,812
NavarroNAVARRO - H2S3,600-3,262
WilcoxWILCOX - DISPOSAL4,660-4,322
EdwardsEDWARDS - H2S, DISPOSAL7,080-6,742

Perforations

Perforated and open-hole intervals.

FromToType
11,12117,409Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,42012.251,695 S
5.517,5478.52,055 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
00Feb 11, 2015Nov 7, 2014Yes

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.

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/01335111, documented in the API reference.