FOUSHEE-WRIGHT KEATHLEY SA4

Oil · District 01 · Lease #20351

Operator: MARATHON OIL EF LLC

Cum Oil

299k BBL

Cum Gas

476k MCF

casinghead

Wells

1

Production

2020-09 — 2026-04

Peak Month

2021-04

Production History

Cum Oil: 299,324 BBL Cum Gas: 475,525 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,424 BBL/mo

Di (annual)

713.5%

b-factor

1.4

EUR

463,557 BBL

R-squared

0.673

type

hyperbolic

Operator History (from monthly production reports)

2020-09 — 2026-07 MARATHON OIL EF LLC 71 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HMARATHON OIL EF LLC122,0002020-08-10