FORISTER 541 B-M. MOCZYGEMBA SA

Oil · District 02 · Lease #12176

Operator: MARATHON OIL EF LLC

Cum Oil

329k BBL

Cum Gas

502k MCF

casinghead

Wells

1

Production

2021-07 — 2026-04

Peak Month

2022-03

Production History

Cum Oil: 328,836 BBL Cum Gas: 502,359 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

36,786 BBL/mo

Di (annual)

705.9%

b-factor

1.2

EUR

546,244 BBL

R-squared

0.914

type

hyperbolic

Operator History (from monthly production reports)

2021-07 — 2026-07 MARATHON OIL EF LLC 61 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC122,0002021-04-30