BARNHART (EF) F UNIT-A UNIT SA

Oil · District 01 · Lease #20768

Operator: MARATHON OIL EF LLC

Cum Oil

157k BBL

Cum Gas

385k MCF

casinghead

Wells

1

Production

2022-10 — 2026-04

Peak Month

2022-12

Production History

Cum Oil: 156,997 BBL Cum Gas: 385,049 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,822 BBL/mo

Di (annual)

492.1%

b-factor

1.6

EUR

301,803 BBL

R-squared

0.475

type

hyperbolic

Operator History (from monthly production reports)

2022-10 — 2026-07 MARATHON OIL EF LLC 46 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC126,0002022-07-29