TEXAS · WELLS · KARNES COUNTY · JOHNSON TRUST 01 LEASE · API 42-255-31737 · DISTRICT 02

Johnson Trust 01 #01H

On schedule

Karnes County · Sugarkane (Eagle Ford) field · Producing  · Horizontal

Johnson Trust 01 #01H (API 42-255-31737) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed April 22, 2011 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 11, 2010, permitted to 12,873 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 Carrizo, Eagle Ford, Midway.

Its lease has reported 57.3K barrels of oil and 1.69M mcf of gas since November 2010, last reporting volume in August 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 – Extension (X)
P-5 last filed
Oct 13, 2026
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 Aug 2026
Latest permitPioneer Natural Res. USA, Inc.Oct 11, 2010

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

12,873
total depth, ft
1
permits on file
Oct 11, 2010
last permit issued
Apr 22, 2011
completed
57.3K
cumulative oil, bbl
1.69M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · APR 2011 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 22, 2011
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

Loading the map…

Open the full map →

Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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
Johnson Trust 01 G-2-260388Sugarkane (Eagle Ford)Marathon Oil EF LLC157.3K1.69MNov 2010 – Aug 2026

Gas, mcf lease total

Last 12 months 16,119 · prior 12 26,813(-40%)

02K4K202420252026

Wells named Johnson Trust 01

Marathon Oil EF LLC's other wells filed under this lease name in Karnes County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Apr 2011 → Sep 2019
  2. 2Ensign Operating LLCOct 2019 → Feb 2023
  3. 3Marathon Oil EF LLCMar 2023 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
701821-99DrillPioneer Natural Res. USA, Inc.Sep 7, 2010Oct 11, 2010Oct 24, 201019,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 22, 2011Johnson Trust 01 G-2-260388Sugarkane (Eagle Ford)Marathon Oil EF LLCProducing12,873

Formation tops

As filed on W-2/G-1. Subsea from 411 ft elevation.Download CSV →

FormationMD ftSubsea
Carrizo——
Eagle Ford——
Midway——

Perforations

Perforated and open-hole intervals.

FromToType
12,93017,970Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37594317.5720 S
9.6259,13412.251,430 S
5.518,3978.51,735 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
00Sep 26, 2012Jul 19, 2011Yes
00Jul 29, 2011Jan 3, 2011Yes

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/25531737, documented in the API reference.