BARNHART (EF)-HFS SA2

Oil · District 02 · Lease #13181

Operator: MARATHON OIL EF LLC

Cum Oil

69k BBL

Cum Gas

38k MCF

casinghead

Wells

1

Production

2025-03 — 2026-04

Peak Month

2025-10

Production History

Cum Oil: 69,464 BBL Cum Gas: 38,356 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

16,409 BBL/mo

Di (annual)

532.1%

b-factor

1.4

EUR

410,570 BBL

R-squared

0.995

type

hyperbolic

Operator History (from monthly production reports)

2025-03 — 2026-07 MARATHON OIL EF LLC 17 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
127HMARATHON OIL EF LLC122,0002024-12-09