RETZLOFF MAY-MAUCH KRUEGER SA

Oil · District 01 · Lease #21045

Operator: MARATHON OIL EF LLC

Cum Oil

160k BBL

Cum Gas

290k MCF

casinghead

Wells

1

Production

2023-01 — 2026-04

Peak Month

2023-05

Production History

Cum Oil: 159,651 BBL Cum Gas: 290,358 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,865 BBL/mo

Di (annual)

373.9%

b-factor

1.1

EUR

297,868 BBL

R-squared

0.958

type

hyperbolic

Operator History (from monthly production reports)

2023-01 — 2026-07 MARATHON OIL EF LLC 43 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC122,0002022-12-20