TEXAS · WELLS · KARNES COUNTY · DOUGLAS 01 LEASE · API 42-255-34460 · DISTRICT 02

Douglas 01 #06H

Shut in

Karnes County · Sugarkane (Eagle Ford) field · Shut In  · Horizontal

Douglas 01 #06H (API 42-255-34460) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed July 3, 2015 and listed as shut in on the RRC schedule, shut in July 1, 2015.

The RRC has issued one drilling permit, issued January 9, 2015, permitted to 13,405 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.

No lease production has been reported under this well’s leases.

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 reportsnone
Latest permitPioneer Natural Res. USA, Inc.Jan 9, 2015

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

13,405
total depth, ft
1
permits on file
Jan 9, 2015
last permit issued
Jul 3, 2015
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · JUL 2015 THROUGH —

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 3, 2015
Shut in
Jul 1, 2015
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.

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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
Douglas 01 G-2-281232Sugarkane (Eagle Ford)Marathon Oil EF LLC100Jul 2015 – —

No volumes reported on these leases in the last three years.

Wells named Douglas 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.

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Chain of custody

Operator on the lease's P-4

Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.

OperatorFromTo
Marathon Oil EF LLCMar 1, 2023today
Ensign Operating LLCOct 2, 2019Mar 1, 2023
Pioneer Natural Res. USA, Inc.Jul 3, 2015Oct 2, 2019

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
802582-99DrillPioneer Natural Res. USA, Inc.Jan 9, 2015Jan 9, 2015Jun 16, 201521,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 3, 2015Douglas 01 G-2-281232Sugarkane (Eagle Ford)Marathon Oil EF LLCShut In · shut in Jul 1, 201513,405

Formation tops

As filed on W-2/G-1. Subsea from 243 ft elevation.Download CSV →

FormationMD ftSubsea
FrioFRIO - DISPOSAL735-492
YeguaYEGUA - DISPOSAL2,718-2,475
Queen City5,167-4,924
Reklaw5,427-5,184
Carrizo6,027-5,784
WilcoxWILCOX - DISPOSAL9,207-8,964
Austin ChalkAUSTIN CHALK - H2S12,930-12,687
Eagle FordEAGLE FORD - H2S13,230-12,987
EdwardsEDWARDS - H2S——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
18,42618,632Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,46812.251,573 S
5.518,8628.53,365 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
00Nov 7, 2016Oct 27, 2016Yes

Well logs

2 logs loaded from the RRC's log index, the latest received Nov 30, 2016. Resistivity.

Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.

Logas describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans Yegua, Queen City, Reklaw, Carrizo, Wilcox, Austin Chalk, Eagle FordTIFF4,468 to 18,903Nov 30, 2016run Jun 30, 20150.32
RESISTIVITYSpans Yegua, Queen City, Reklaw, Carrizo, Wilcox, Austin Chalk, Eagle FordTIFF4,468 to 18,909Nov 21, 2016run Jun 30, 20150.40

"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.

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.

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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/25534460, documented in the API reference.