TEXAS · WELLS · KARNES COUNTY · WARNER 01 LEASE · API 42-255-33689 · DISTRICT 02

Warner 01 #04H

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

Warner 01 #04H (API 42-255-33689) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed October 9, 2015 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 16, 2014, permitted to 13,126 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 10 formation tops, including Frio, Yegua, Queen City, Reklaw.

Its lease has reported 209K barrels of oil and 609K mcf of gas since March 2015, 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.Apr 16, 2014

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

13,126
total depth, ft
1
permits on file
Apr 16, 2014
last permit issued
Oct 9, 2015
completed
209K
cumulative oil, bbl
609K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2015 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 9, 2015
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
Warner 01 G-2-278299Sugarkane (Eagle Ford)Marathon Oil EF LLC1209K609KMar 2015 – Apr 2026

Gas, mcf lease total

Last 12 months 6,237 · prior 12 13,344(-53%)

02K4K202420252026

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Mar 2015 → Sep 2019
  2. 2Ensign Operating LLCOct 2019 → Feb 2023
  3. 3Marathon Oil EF LLCMar 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
780034-99DrillPioneer Natural Res. USA, Inc.Feb 18, 2014Apr 16, 2014Sep 28, 201421,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 9, 2015Warner 01 G-2-278299Sugarkane (Eagle Ford)Marathon Oil EF LLCProducing13,126

Formation tops

As filed on W-2/G-1. Subsea from 245 ft elevation.Download CSV →

FormationMD ftSubsea
FrioFRIO - DISPOSAL599-354
FrioFRIO - DISPOSAL600-355
YeguaYEGUA - DISPOSAL2,746-2,501
YeguaYEGUA - DISPOSAL2,747-2,502
Queen City5,087-4,842
Queen City5,088-4,843
Reklaw5,336-5,091
Reklaw5,337-5,092
Carrizo6,005-5,760
WilcoxWILCOX - DISPOSAL6,005-5,760
WilcoxWILCOX - DISPOSAL9,119-8,874
Austin ChalkAUSTIN CHALK - H2S12,693-12,448
Eagle FordEAGLE FORD - H2S12,983-12,738
Eagle FordEAGLE FORD - H2S12,984-12,739
EdwardsEDWARDS - H2S——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
13,18016,982Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,46312.251,130 S
5.517,1658.52,245 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
00Jan 30, 2017Oct 19, 2016—
00Nov 3, 2015Sep 21, 2015Yes

Well logs

1 log loaded from the RRC's log index, the latest received Dec 9, 2015. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans Carrizo, Wilcox, Austin Chalk, Eagle FordTIFF12,300 to 17,299Dec 9, 2015run Jan 19, 20140.40

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/25533689, documented in the API reference.