TOM FAMILY-RETZLOFF SA2

Oil · District 01 · Lease #20436

Operator: MARATHON OIL EF LLC

Cum Oil

197k BBL

Cum Gas

236k MCF

casinghead

Wells

1

Production

2021-05 — 2026-04

Peak Month

2021-09

Production History

Cum Oil: 197,261 BBL Cum Gas: 236,109 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,542 BBL/mo

Di (annual)

42.7%

b-factor

0.0

EUR

155,668 BBL

R-squared

0.386

type

exponential

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC126,0002021-03-29