R MAY A-MAY GIRLS CHAPMAN SA2

Oil · District 01 · Lease #21798

Operator: MARATHON OIL EF LLC

Cum Oil

211k BBL

Cum Gas

261k MCF

casinghead

Wells

1

Production

2025-06 — 2026-04

Peak Month

2025-07

Production History

Cum Oil: 210,933 BBL Cum Gas: 261,070 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

36,761 BBL/mo

Di (annual)

754.1%

b-factor

1.9

EUR

1,401,084 BBL

R-squared

0.865

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC124,0002024-11-20