EGBERT-CARTER-HOLM SA

Oil · District 02 · Lease #12091

Operator: MARATHON OIL EF LLC

Cum Oil

359k BBL

Cum Gas

619k MCF

casinghead

Wells

1

Production

2020-10 — 2026-04

Peak Month

2021-01

Production History

Cum Oil: 359,285 BBL Cum Gas: 618,726 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

26,017 BBL/mo

Di (annual)

418.7%

b-factor

1.0

EUR

399,598 BBL

R-squared

0.608

type

hyperbolic

Operator History (from monthly production reports)

2020-10 — 2026-07 MARATHON OIL EF LLC 70 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC126,0002020-08-04