WELL · 42-297-35683 · DISTRICT 2

McCoy Unit A #501H

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Live Oak County · Eagleville (Eagle Ford-2) field · Producing  · Horizontal

Mccoy Unit A #501H (API 42-297-35683) is a horizontal well in Live Oak County operated by Marathon Oil EF LLC, completed April 2, 2015 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 21, 2014, permitted to 19,500 ft.

Completion filings report 10 formation tops, including Hockley - Disposal, Jackson, Frio, Queen City.

Its lease has reported 309K barrels of oil and 1.11M mcf of gas since October 2014, last reporting in July 2026. The lease carries 5 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 Jan 2026
Latest permitMarathon Oil EF LLCOct 21, 2014
19,500
total depth, ft
1
permits on file
Oct 21, 2014
last permit issued
Apr 2, 2015
completed
309K
cumulative oil, bbl
1.11M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 2, 2015
Shut in
—
Plugged
—

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

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 lease this well is completed on; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
McCoy Unit A O-2-10847Eagleville (Eagle Ford-2)Marathon Oil EF LLC5309K1.11MOct 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 3,778 · prior 12 5,330(-29%)

05001K202420252026

Gas, mcf lease total

Last 12 months 19,349 · prior 12 36,202(-47%)

02K4K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCOct 2014 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
798398-99DrillMarathon Oil EF LLCOct 15, 2014Oct 21, 2014Nov 15, 201419,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-10847————

Formation tops

As filed on W-2/G-1. Subsea from 292 ft elevation.Download CSV →

FormationMD ftSubsea
Hockley - Disposal1,320-1,028
JacksonJACKSON-YEGUA - DISPOSAL1,350-1,058
FrioFRIO - DISPOSAL1,700-1,408
Queen City5,040-4,748
Cook Mountain5,950-5,658
Wilcox7,010-6,718
Austin Chalk12,062-11,770
Eagle FordEAGLE FORD - H2S12,138-11,846
EdwardsEDWARDS - H2S——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
12,32719,107Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,93412.251,840 S
5.519,0428.52,685 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
00Dec 29, 2015May 4, 2015Yes

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/29735683, documented in the API reference.