WELL · 42-395-32022 · DISTRICT 3

Mumford EF #1H

Y

Robertson County · Giddings (Eagleford) field · Producing  · Horizontal

Mumford EF #1H (API 42-395-32022) is a horizontal well in Robertson County operated by Wildfire Energy Operating LLC, completed September 25, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 25, 2018, permitted to 7,300 ft.

It was permitted by Wildhorse Resources Mngt CO, LLC and has since transferred to Wildfire Energy Operating LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Nacatoch, Pecan Gap, Austin Chalk, Eagle Ford.

Its lease has reported 262K barrels of oil and 81.5K mcf of gas since September 2018, last reporting in July 2026.

Operator of record

Wildfire Energy Operating LLC

Permitted by Wildhorse Resources Mngt Co, LLC; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Oct 4, 2025 · 171 permits on file · (713) 261-3871

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleWildfire Energy Operating LLC
Production reportsWildfire Energy Operating LLCthrough Mar 2026
Latest permitWildhorse Resources Mngt Co, LLCJun 25, 2018

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

7,300
total depth, ft
1
permits on file
Jun 25, 2018
last permit issued
Sep 25, 2018
completed
262K
cumulative oil, bbl
81.5K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 25, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

30.723784, -96.577681

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Robertson 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
Mumford EF O-3-27457Giddings (Eagleford)Wildfire Energy Operating LLC1262K81.5KSep 2018 – Jul 2026

Oil, barrels lease total

Last 12 months 12,593 · prior 12 15,611(-19%)

01K2K202420252026

Gas, mcf lease total

Last 12 months 6,830 · prior 12 12,854(-47%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Wildhorse Resources Mngt Co, LLCSep 2018 → May 2019
  2. 2Chesapeake Operating, L.L.C.Jun 2019 → Feb 2023
  3. 3Wildfire Energy Operating LLCMar 2023 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
841646-99DrillWildhorse Resources Mngt Co, LLCJun 25, 2018Jun 25, 2018Jul 28, 20187,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-3-27457————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Nacatoch1,425
Pecan Gap5,194
Austin Chalk6,409
Eagle FordEAGLEFORD6,782
Woodbine7,080
Buda—
EdwardsEDWARDS - DISPOSAL; KURTEN BUDA—
Georgetown—
Paluxy—
Travis Peak—

Perforations

Perforated and open-hole intervals.

FromToType
7,33814,890Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.753,00713.51,155 S
5.56,2466.751,020 S
7.6256,8969.8751,025 S
514,9356.751,020 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
00Feb 8, 2019Jan 11, 2019Yes

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

Open the cross-section →

West Yellow Rose EF42-395-32021

0.0 KM · Wildhorse Resources Mngt Co, LLC · Section with this well →

Nacatoch1,425-1,047
Pecan Gap5,195-4,817
Paluxy5,500-5,122
Austin Chalk6,409-6,031
Eagle Ford6,571-6,193
Georgetown—
Woodbine—
Travis Peak—

10 TOPS · FIRST 8

Charlotte Ewell Unit42-395-32030

0.0 KM · Wildhorse Resources Mngt Co, LLC · Section with this well →

Nacatoch1,425-1,141
Pecan Gap5,217-4,933
Austin Chalk6,426-6,142
Travis Peak—
Paluxy—
Buda—
Edwards—
Woodbine—

10 TOPS · FIRST 8

Barwise EF Unit42-395-32026

2.3 KM · Wildhorse Resources Mngt Co, LLC · Section with this well →

Nacatoch1,425-1,147
Pecan Gap5,314-5,036
Paluxy5,500-5,222
Austin Chalk6,504-6,226
Eagle Ford6,680-6,402
Georgetown—
Travis Peak—
Woodbine—

10 TOPS · FIRST 8

Terry EF Unit42-395-32027

2.3 KM · Wildhorse Resources Mngt Co, LLC · Section with this well →

Nacatoch1,425-1,147
Pecan Gap5,316-5,038
Woodbine5,350-5,072
Paluxy5,500-5,222
Buda5,720-5,442
Austin Chalk6,506-6,228
Eagle Ford6,686-6,408
Edwards—

11 TOPS · FIRST 8

Flowers-Reistino Unit42-395-32095

2.7 KM · Wildfire Energy Operating LLC · Section with this well →

Pecan Gap4,999-4,748
Gober6,160-5,909
Austin Chalk6,244-5,993
Georgetown—
Edwards—
Nacatoch—
Paluxy—
Cotton Valley—

11 TOPS · FIRST 8

S. P. Scarmardo-Seilevco L Unit42-395-32096

2.7 KM · Wildfire Energy Operating LLC · Section with this well →

Pecan Gap4,999-4,749
Gober6,160-5,910
Austin Chalk6,224-5,974
Buda—
Woodbine—
Travis Peak—
Paluxy—
Nacatoch—

11 TOPS · FIRST 8

Forbin42-395-32015

3.9 KM · Wildhorse Resources Mngt Co, LLC · Section with this well →

Nacatoch1,425-1,181
Pecan Gap5,521-5,277
Austin Chalk6,702-6,458
Woodbine7,080-6,836
Eagle Ford7,120-6,876
Edwards—
Paluxy—
Buda—

10 TOPS · FIRST 8

Forbin42-395-32017

3.9 KM · Wildhorse Resources Mngt Co, LLC · Section with this well →

Nacatoch1,425-1,153
Pecan Gap5,516-5,244
Austin Chalk6,703-6,431
Woodbine7,000-6,728
Eagle Ford7,128-6,856
Travis Peak—
Buda—
Edwards—

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

Developers: this page as JSON is GET /v1/data/wells/39532022, documented in the API reference.