STEWART GIESE HENKE SA3

Oil · District 01 · Lease #21617

Operator: MARATHON OIL EF LLC

Cum Oil

161k BBL

Cum Gas

188k MCF

casinghead

Wells

1

Production

2024-07 — 2026-04

Peak Month

2025-02

Production History

Cum Oil: 161,222 BBL Cum Gas: 188,156 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,758 BBL/mo

Di (annual)

599.0%

b-factor

1.2

EUR

481,569 BBL

R-squared

0.901

type

hyperbolic

Operator History (from monthly production reports)

2024-07 — 2026-07 MARATHON OIL EF LLC 25 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC218,0002023-09-22