DEATLEY GRIFFIN MAY SA3

Oil · District 01 · Lease #21201

Operator: MARATHON OIL EF LLC

Cum Oil

367k BBL

Cum Gas

510k MCF

casinghead

Wells

1

Production

2023-10 — 2026-04

Peak Month

2024-03

Production History

Cum Oil: 366,604 BBL Cum Gas: 510,491 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

32,946 BBL/mo

Di (annual)

643.9%

b-factor

2.0

EUR

1,499,225 BBL

R-squared

0.837

type

hyperbolic

Operator History (from monthly production reports)

2023-10 — 2026-07 MARATHON OIL EF LLC 34 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC122,0002023-09-01