BARNHART (EF) F UNIT

Oil · District 01 · Lease #20767

Operator: MARATHON OIL EF LLC

Cum Oil

363k BBL

Cum Gas

801k MCF

casinghead

Wells

2

Production

2022-09 — 2026-04

Peak Month

2022-12

Production History

Cum Oil: 363,381 BBL Cum Gas: 800,526 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

48,200 BBL/mo

Di (annual)

250.4%

b-factor

0.3

EUR

330,686 BBL

R-squared

0.901

type

hyperbolic

Operator History (from monthly production reports)

2022-09 — 2026-07 MARATHON OIL EF LLC 47 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC126,0002022-08-02
4HMARATHON OIL EF LLC126,0002022-08-02