SMITH-MELLICK UNIT

Oil · District 02 · Lease #9875

Operator: MARATHON OIL EF LLC

Cum Oil

448k BBL

Cum Gas

513k MCF

casinghead

Wells

2

Production

2011-11 — 2026-04

Peak Month

2021-11

Production History

Cum Oil: 448,280 BBL Cum Gas: 512,665 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,982 BBL/mo

Di (annual)

297.9%

b-factor

0.7

EUR

255,519 BBL

R-squared

0.938

type

hyperbolic

Operator History (from monthly production reports)

2011-11 — 2026-07 MARATHON OIL EF LLC 177 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC122,0002021-03-02
1HMARATHON OIL EF LLC216,9662011-10-05