WELL · 42-123-34843 · DISTRICT 2

Mumme-Schendel-Maron Ulw B #1

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DE Witt County · Eagleville (Eagle Ford-2) field · Producing  · Horizontal

Mumme-Schendel-Maron Ulw B #1 (API 42-123-34843) is a horizontal well in De Witt County operated by Burlington Resources O & G CO LP, completed December 18, 2020 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 14, 2019, permitted to 17,000 ft.

Completion filings report 8 formation tops, including Yegua, Wilcox, Austin Chalk, Eagle Ford.

Its lease has reported 314K barrels of oil and 628K mcf of gas since October 2019, last reporting in July 2026.

Operator of record

Burlington Resources O & G Co LP

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Oct 30, 2025
Permits on file
5,133
Phone
(832) 486-2737

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBurlington Resources O & G Co LP
Production reportsBurlington Resources O & G Co LPthrough Apr 2026
Latest permitBurlington Resources O & G Co LPJun 14, 2019
17,000
total depth, ft
1
permits on file
Jun 14, 2019
last permit issued
Dec 18, 2020
completed
314K
cumulative oil, bbl
628K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 18, 2020
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

29.023439, -97.712175

Google Maps ↗

Permit surface location from the RRC GIS record, in DE Witt 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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mumme-Schendel-Maron Ulw B O-2-11976Eagleville (Eagle Ford-2)Burlington Resources O & G Co LP1314K628KOct 2019 – Jul 2026

Oil, barrels lease total

Last 12 months 25,333 · prior 12 20,896(+21%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 50,065 · prior 12 47,983(+4%)

05K10K15K202420252026

Chain of custody

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

  1. 1Burlington Resources O & G Co LPMar 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
853948-99DrillBurlington Resources O & G Co LPJun 6, 2019Jun 14, 2019Nov 15, 201917,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-11976————

Formation tops

As filed on W-2/G-1. Subsea from 412 ft elevation.Download CSV →

FormationMD ftSubsea
Yegua2,103-1,691
Wilcox5,167-4,755
Austin Chalk12,013-11,601
Eagle Ford12,315-11,903
Eagle Ford12,316-11,904
Catahoula——
EdwardsEDWARDS - H2S——
Frio——
Vicksburg——

Perforations

Perforated and open-hole intervals.

FromToType
12,47717,300Perforated
12,47719,119Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,01712.251,090 S
5.519,2138.752,265 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
00Oct 26, 2022Oct 3, 2022—
00Mar 11, 2021Mar 4, 2021Yes
00Jul 6, 2020Jun 22, 2020—
00Jun 12, 2020May 5, 2020Yes
00Jun 10, 2020Apr 30, 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 →

Mumme-Schendel-Maron Ulw C42-123-34844

0.0 KM · Burlington Resources O & G Co LP · Section with this well →

Yegua2,074-1,662
Eagle Ford—
Frio—
Vicksburg—
Austin Chalk—
Catahoula—
Wilcox—
Edwards—

Mumme-Schendel-Maron Ulw D42-123-34845

0.0 KM · Burlington Resources O & G Co LP · Section with this well →

Yegua2,111-1,700
Wilcox5,162-4,751
Austin Chalk11,995-11,584
Eagle Ford12,293-11,882
Catahoula—
Edwards—
Frio—
Vicksburg—

Mumme-Schendel-Maron Ulw A42-123-34842

0.0 KM · Burlington Resources O & G Co LP · Section with this well →

Yegua2,076-1,664
Austin Chalk—
Wilcox—
Vicksburg—
Frio—
Edwards—
Edwards—
Eagle Ford—

9 TOPS · FIRST 8

Mumme-Maron Ulw A42-123-34827

0.0 KM · Burlington Resources O & G Co LP · Section with this well →

Yegua2,089-1,677
Catahoula—
Austin Chalk—
Eagle Ford—
Edwards—
Edwards—
Frio—
Vicksburg—

9 TOPS · FIRST 8

Mumme-Maron Ulw B42-123-34825

0.0 KM · Burlington Resources O & G Co LP · Section with this well →

Yegua2,086-1,675
Wilcox5,167-4,756
Frio—
Vickburg—
Eagle Ford—
Catahoula—
Austin Chalk—
Edwards—

Ruckman Ranch Unit42-123-34496

0.6 KM · Burlington Resources O & G Co LP · Section with this well →

Vicksburg1,136-720
Yegua2,115-1,699
Wilcox5,263-4,847
Austin Chalk12,074-11,658
Eagle Ford12,338-11,922
Catahoula—
Frio—
Edwards—

Ruckman Ranch Unit42-123-34495

0.6 KM · Burlington Resources O & G Co LP · Section with this well →

Vicksburg1,138-722
Yegua2,119-1,703
Wilcox5,264-4,848
Austin Chalk12,092-11,676
Eagle Ford12,363-11,947
Frio—
Edwards—
Catahoula—

Ruckman Ranch Unit42-123-34494

0.6 KM · Burlington Resources O & G Co LP · Section with this well →

Vicksburg1,138-722
Yegua2,119-1,703
Wilcox5,261-4,845
Austin Chalk12,083-11,667
Eagle Ford12,338-11,922
Catahoula—
Edwards—
Frio—

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/12334843, documented in the API reference.