FORISTER 541 A-B SA

Oil · District 02 · Lease #12541

Operator: MARATHON OIL EF LLC

Cum Oil

183k BBL

Cum Gas

280k MCF

casinghead

Wells

1

Production

2022-11 — 2026-04

Peak Month

2023-03

Production History

Cum Oil: 183,230 BBL Cum Gas: 280,222 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,677 BBL/mo

Di (annual)

966.1%

b-factor

1.3

EUR

408,367 BBL

R-squared

0.964

type

hyperbolic

Operator History (from monthly production reports)

2022-11 — 2026-07 MARATHON OIL EF LLC 45 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC122,0002022-09-20