R MAY A-SCHROEDER CHAPMAN SA1

Oil · District 01 · Lease #21797

Operator: MARATHON OIL EF LLC

Cum Oil

209k BBL

Cum Gas

259k MCF

casinghead

Wells

1

Production

2025-06 — 2026-04

Peak Month

2025-07

Production History

Cum Oil: 209,457 BBL Cum Gas: 259,388 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

31,358 BBL/mo

Di (annual)

630.8%

b-factor

2.0

EUR

1,441,089 BBL

R-squared

0.791

type

hyperbolic

Operator History (from monthly production reports)

2025-06 — 2026-07 MARATHON OIL EF LLC 14 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC124,0002024-11-20