TEXAS · WELLS · KARNES COUNTY · API 42-255-34326 · DISTRICT 02

Morgan Unit AC #3H

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Karnes County · Sugarkane (Austin Chalk) field · Producing  · Horizontal

Morgan Unit AC #3H (API 42-255-34326) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed October 18, 2016 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 17, 2014, permitted to 11,814 ft.

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

Its 2 leases have reported 70.6K barrels of oil and 1.09M mcf of gas since July 2015, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.

Operator of record

Marathon Oil EF LLC

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Sep 26, 2025
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 reportsMarathon Oil EF LLCthrough Apr 2026
Latest permitMarathon Oil EF LLCNov 17, 2014
11,814
total depth, ft
2
permits on file
Nov 17, 2014
last permit issued
Oct 18, 2016
completed
70.6K
cumulative oil, bbl
1.09M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2015 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 18, 2016
Shut in
—
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.

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Morgan Unit AC G-2-288426Sugarkane (Austin Chalk)Marathon Oil EF LLC10792KOct 2016 – Jul 2026
Morgan Unit AC O-2-11254Sugarkane (Austin Chalk)Marathon Oil EF LLC370.6K294KJul 2015 – Nov 2020

Gas, mcf lease total

Last 12 months 31,753 · prior 12 35,248(-10%)

05K10K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCOct 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
800243-98DrillMarathon Oil EF LLCFeb 19, 2015Nov 17, 2014Jun 23, 201520,100
800243-99DrillMarathon Oil EF LLCNov 13, 2014Nov 17, 2014Jun 23, 201520,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 18, 2016Morgan Unit AC G-2-288426Sugarkane (Austin Chalk)Marathon Oil EF LLCProducing11,814
Oct 18, 2016Morgan Unit AC O-2-11254Sugarkane (Austin Chalk)Marathon Oil EF LLCNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 455 ft elevation.Download CSV →

FormationMD ftSubsea
YeguaYEGUA - DISPOSAL1,854-1,399
Queen City4,186-3,731
Reklaw4,483-4,028
Carrizo5,153-4,698
WilcoxWILCOX - DISPOSAL6,477-6,022
Austin ChalkAUSTIN CHALK - H2S11,993-11,538
Eagle FordEAGLE FORD - H2S——
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
12,42919,023Perforated
12,42919,029Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6256,14112.251,545 S
5.519,1228.52,220 S
5.519,1228.752,220 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
00Apr 3, 2020Nov 14, 2019Yes
00Feb 24, 2017Jan 12, 2017Yes

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.

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/25534326, documented in the API reference.