STEWART GIESE HENKE SA2

Oil · District 01 · Lease #21711

Operator: MARATHON OIL EF LLC

Cum Oil

197k BBL

Cum Gas

274k MCF

casinghead

Wells

1

Production

2025-01 — 2026-04

Peak Month

2025-02

Production History

Cum Oil: 196,542 BBL Cum Gas: 274,248 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

33,396 BBL/mo

Di (annual)

404.3%

b-factor

0.7

EUR

291,889 BBL

R-squared

0.915

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 MARATHON OIL EF LLC 19 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC318,0002023-09-22