42-013-36187

PRODUCING Horizontal

HIERHOLZER RETZLOFF-MCMAHON SA1

ATASCOSA County · District 1 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-1)

RRC Lookup

Permits

Max Depth

24,000 ft

First Permit

2024-08-01

Latest Activity

2024-08-01

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

—

Shut-In

—

Plugged

—

P-5 Org Status: Active

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2025-03

Last Production

2026-03

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil

production & DCA →

Permit History (1)

#901580 Drill Final Completion

HIERHOLZER RETZLOFF-MCMAHON SA1 · 24,000 ft

2024-08-01

Spud 2024-10-23

Permit Applications (1)

#901580 A MARATHON OIL EF LLC

received 2024-07-25

Google Maps → Explorer Map →

Lat 28.806073

Lon -98.138688

Well Details

Well Number: 1H
Max Depth: 24,000 ft
Drill Type: Horizontal
County: ATASCOSA
District: 1
Operator: MARATHON OIL EF LLC

Operator

Name: MARATHON OIL EF LLC
Location: HOUSTON
P-5 Status: Y (filed 2025-08-04)
Cum Oil (all leases): 402,810,154 bbl
Cum Gas (all leases): 1,004,946,409 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 3,131

External Links

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