TOM FAMILY-RETZLOFF SA3

Oil · District 01 · Lease #20435

Operator: MARATHON OIL EF LLC

Cum Oil

221k BBL

Cum Gas

276k MCF

casinghead

Wells

1

Production

2021-05 — 2026-04

Peak Month

2021-09

Production History

Cum Oil: 221,384 BBL Cum Gas: 276,248 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,957 BBL/mo

Di (annual)

66.5%

b-factor

0.0

EUR

143,547 BBL

R-squared

0.444

type

exponential

Operator History (from monthly production reports)

2021-05 — 2026-07 MARATHON OIL EF LLC 63 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC126,0002021-03-29