BRYSCH JONAS-YOSKO BORGFELD SA

Oil · District 02 · Lease #12086

Operator: MARATHON OIL EF LLC

Cum Oil

369k BBL

Cum Gas

650k MCF

casinghead

Wells

1

Production

2020-08 — 2026-04

Peak Month

2021-05

Production History

Cum Oil: 368,764 BBL Cum Gas: 650,175 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

41,266 BBL/mo

Di (annual)

190.3%

b-factor

0.3

EUR

372,030 BBL

R-squared

0.944

type

hyperbolic

Operator History (from monthly production reports)

2020-08 — 2026-07 MARATHON OIL EF LLC 72 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC222,0002020-04-15