WELL · 42-255-36853 · DISTRICT 2

Margaret Ann #13H

Y

Karnes County · Eagleville (Eagle Ford-2) field · Shut IN  · Horizontal

Margaret Ann #13H (API 42-255-36853) is a horizontal well in Karnes County operated by Magnolia Oil & Gas Operating LLC, completed March 10, 2021 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued February 7, 2020, permitted to 13,500 ft.

Completion filings report 10 formation tops, including Carrizo, Wilcox, Austin Chalk, Eagle Ford.

Its lease has reported 2.11M barrels of oil and 3.3M mcf of gas since October 2017, last reporting in July 2026. The lease carries 13 wells, so these are lease totals, not this well alone.

Operator of record

Magnolia Oil & Gas Operating LLC

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 6, 2026
Permits on file
615
Phone
(713) 842-9050

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMagnolia Oil & Gas Operating LLC
Production reportsMagnolia Oil & Gas Operating LLCthrough Apr 2026
Latest permitMagnolia Oil & Gas Operating LLCFeb 7, 2020
13,500
total depth, ft
1
permits on file
Feb 7, 2020
last permit issued
Mar 10, 2021
completed
2.11M
cumulative oil, bbl
3.3M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2017 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 10, 2021
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

28.970534, -97.950206

Google Maps ↗

Permit surface location from the RRC GIS record, in Karnes 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 13 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Margaret Ann O-2-11450Eagleville (Eagle Ford-2)Magnolia Oil & Gas Operating LLC132.11M3.3MOct 2017 – Jul 2026

Oil, barrels lease total

Last 12 months 84,795 · prior 12 99,221(-15%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 220,914 · prior 12 262,455(-16%)

020K40K202420252026

Chain of custody

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

  1. 1Gulftex Energy IV, LPOct 2017 → Feb 2018
  2. 2Enervest Operating, L.L.C.Mar 2018 → Jul 2018
  3. 3Magnolia Oil & Gas Operating LLCAug 2018 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
861644-99DrillMagnolia Oil & Gas Operating LLCFeb 3, 2020Feb 7, 2020Mar 9, 202013,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-11450————

Formation tops

As filed on W-2/G-1. Subsea from 396 ft elevation.Download CSV →

FormationMD ftSubsea
Carrizo4,123-3,727
WilcoxWILCOX - DISPOSAL5,122-4,726
Austin ChalkAUSTIN CHALK - H2S10,140-9,744
Eagle FordEAGLE FORD - H2S10,443-10,047
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
Queen City——
Reklaw——
SligoSLIGO - H2S——
YeguaYEGUA - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
10,95513,847Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,73512.251,130 S
5.513,9798.752,460 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
00Jul 30, 2021Jul 14, 2021Yes
00Aug 6, 2020Jul 16, 2020Yes

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

Open the cross-section →

Margaret Ann42-255-36833

0.0 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo4,123-3,726
Wilcox5,122-4,725
Austin Chalk10,146-9,749
Eagle Ford10,444-10,047
Reklaw—
Frio—
Edwards—
Yegua—

10 TOPS · FIRST 8

Margaret Ann42-255-36854

0.0 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo4,123-3,727
Wilcox5,122-4,726
Austin Chalk10,168-9,772
Eagle Ford10,428-10,032
Queen City—
Yegua—
Sligo—
Reklaw—

10 TOPS · FIRST 8

Margaret Ann42-255-36836

0.0 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo4,123-3,727
Wilcox5,122-4,726
Austin Chalk10,139-9,743
Reklaw—
Sligo—
Yegua—
Edwards—
Frio—

10 TOPS · FIRST 8

Margaret Ann42-255-36851

0.0 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo4,123-3,725
Wilcox5,122-4,724
Austin Chalk10,153-9,755
Eagle Ford—
Queen City—
Reklaw—
Sligo—
Yegua—

10 TOPS · FIRST 8

Margaret Ann42-255-36852

0.0 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo4,123-3,725
Wilcox5,122-4,724
Austin Chalk10,161-9,763
Yegua—
Eagle Ford—
Edwards—
Frio—
Queen City—

10 TOPS · FIRST 8

Margaret Ann42-255-36855

0.0 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo4,123-3,724
Wilcox5,122-4,723
Austin Chalk10,144-9,745
Eagle Ford10,437-10,038
Reklaw—
Sligo—
Queen City—
Yegua—

10 TOPS · FIRST 8

STP Unit42-255-36112

1.5 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Carrizo3,832-3,452
Reklaw3,960-3,580
Yegua4,000-3,620
Wilcox4,712-4,332
Queen City6,440-6,060
Austin Chalk10,206-9,826
Eagle Ford10,483-10,103
Sligo—

10 TOPS · FIRST 8

Margaret Ann42-255-36358

1.6 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Reklaw3,960-3,646
Yegua4,000-3,686
Carrizo4,123-3,809
Wilcox5,122-4,808
Queen City6,440-6,126
Austin Chalk10,375-10,061
Frio—
Eagle Ford—

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

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