WELL · 42-255-35927 · DISTRICT 2

Soundgarden Unit #104H

N

Karnes County · Sugarkane (Austin Chalk) field  · Horizontal

Soundgarden Unit #104H (API 42-255-35927) is a horizontal well in Karnes County operated by Magnolia Oil & Gas Operating LLC, completed December 27, 2018.

The RRC has issued one drilling permit, issued April 27, 2018, permitted to 11,000 ft.

It was permitted by Enervest Operating, L.L.C. and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Carrizo, Reklaw, Yegua, Wilcox.

Its 2 leases have reported 1.71K barrels of oil and 1.25M mcf of gas since June 2018, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Magnolia Oil & Gas Operating LLC

Permitted by Enervest Operating, L.L.C.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Mar 4, 2026 · 615 permits on file · (713) 345-6206

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMagnolia Oil & Gas Operating LLC
Production reportsMagnolia Oil & Gas Operating LLCthrough Jan 2026
Latest permitEnervest Operating, L.L.C.Apr 27, 2018

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

11,000
total depth, ft
1
permits on file
Apr 27, 2018
last permit issued
Dec 27, 2018
completed
1.71K
cumulative oil, bbl
1.25M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 27, 2018
Shut in
—
Plugged
—

Surface location

29.040854, -97.862836

OpenStreetMap → ·  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 2 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Soundgarden Unit G-2-294991Sugarkane (Austin Chalk)Magnolia Oil & Gas Operating LLC101.24MDec 2018 – Jul 2026
Soundgarden Unit O-2-11636Sugarkane (Austin Chalk)Magnolia Oil & Gas Operating LLC21.71K8.58KJun 2018 – Oct 2023

Gas, mcf lease total

Last 12 months 23,866 · prior 12 28,073(-15%)

05K10K202420252026

Chain of custody

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

  1. 1Magnolia Oil & Gas Operating LLCDec 2018 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
839253-99DrillEnervest Operating, L.L.C.Apr 24, 2018Apr 27, 2018May 5, 201811,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-294991————
—— O-2-11636————

Formation tops

As filed on W-2/G-1. Subsea from 353 ft elevation.Download CSV →

FormationMD ftSubsea
Carrizo3,386-3,033
Reklaw3,960-3,607
YeguaYEGUA - DISPOSAL4,000-3,647
WilcoxWILCOX - DISPOSAL4,145-3,792
Queen City6,440-6,087
Austin ChalkAUSTIN CHALK - H2S9,956-9,603
Eagle FordEAGLE FORD - H2S——
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
10,25214,657Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,24812.251,080 S
5.514,7908.52,210 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 13, 2023Jun 22, 2023Yes
00Mar 21, 2019Feb 12, 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 →

Audioslave A42-255-35935

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

Carrizo3,386-3,034
Reklaw3,960-3,608
Yegua4,000-3,648
Wilcox4,145-3,793
Queen City6,440-6,088
Austin Chalk9,961-9,609
Sligo—
Frio—

10 TOPS · FIRST 8

Soundgarden Unit42-255-35930

0.0 KM · Enervest Operating, L.L.C. · Section with this well →

Yegua710-358
Queen City3,008-2,656
Carrizo3,386-3,034
Reklaw3,425-3,073
Wilcox4,145-3,793
Austin Chalk10,013-9,661
Eagle Ford10,359-10,007
Edwards—

10 TOPS · FIRST 8

Soundgarden Unit42-255-35929

0.0 KM · Enervest Operating, L.L.C. · Section with this well →

Carrizo3,386-3,034
Reklaw3,960-3,608
Yegua4,000-3,648
Wilcox4,145-3,793
Queen City6,440-6,088
Austin Chalk9,958-9,606
Sligo—
Eagle Ford—

10 TOPS · FIRST 8

Soundgarden Unit42-255-37743

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

Midway6,505-6,154
Nevarro7,917-7,566
Tyler8,513-8,162
Pecan Gap9,817-9,466
Austin Chalk9,904-9,553
Eagle Ford10,314-9,963
Queen City—
Reklaw—

10 TOPS · FIRST 8

Soundgarden Unit42-255-37747

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

Midway6,478-6,128
Nevarro7,915-7,565
Navarro7,915-7,565
Tyler8,523-8,173
Pecan Gap9,827-9,477
Austin Chalk9,901-9,551
Carrizo—
Yegua—

11 TOPS · FIRST 8

Soundgarden Unit42-255-37744

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

Midway6,510-6,160
Nevarro7,928-7,578
Tyler8,524-8,174
Pecan Gap9,833-9,483
Austin Chalk9,909-9,559
Eagle Ford10,323-9,973
Yegua—
Frio—

10 TOPS · FIRST 8

Soundgarden Unit42-255-37748

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

Midway6,493-6,144
Navarro7,933-7,584
Nevarro7,933-7,584
Tyler8,544-8,195
Pecan Gap9,835-9,486
Austin Chalk9,912-9,563
Yegua—
Carrizo—

11 TOPS · FIRST 8

Soundgarden Unit42-255-37745

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

Midway6,513-6,165
Nevarro7,933-7,585
Tyler8,530-8,182
Pecan Gap9,841-9,493
Austin Chalk9,916-9,568
Eagle Ford10,333-9,985
Yegua—
Queen City—

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/25535927, documented in the API reference.