HIERHOLZER RETZLOFF-MCMAHON SA1

Oil · District 1 · Lease #21771

Operator: MARATHON OIL EF LLC

Cum Oil

239k BBL

Cum Gas

0 MCF

Wells

1

Production

2025-03 — 2026-03

Peak Month

2025-03

Production History

Cum Oil: 238,842 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

43,106 BBL/mo

Di (annual)

183.6%

b-factor

0.0

EUR

282,230 BBL

R-squared

0.951

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC124,0002024-08-01
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