PFEIFER-BELL FRANSEN SA

Oil · District 02 · Lease #12730

Operator: MARATHON OIL EF LLC

Cum Oil

217k BBL

Cum Gas

540k MCF

casinghead

Wells

1

Production

2023-11 — 2026-04

Peak Month

2024-04

Production History

Cum Oil: 217,385 BBL Cum Gas: 539,842 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

34,201 BBL/mo

Di (annual)

394.9%

b-factor

0.6

EUR

250,071 BBL

R-squared

0.967

type

hyperbolic

Operator History (from monthly production reports)

2023-11 — 2026-07 MARATHON OIL EF LLC 33 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC118,0002023-07-28