SMITH-MELLICK-OXFORD WITTE SA

Oil · District 02 · Lease #12677

Operator: MARATHON OIL EF LLC

Cum Oil

311k BBL

Cum Gas

376k MCF

casinghead

Wells

1

Production

2023-08 — 2026-04

Peak Month

2023-09

Production History

Cum Oil: 310,909 BBL Cum Gas: 375,618 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

39,838 BBL/mo

Di (annual)

389.7%

b-factor

0.9

EUR

537,277 BBL

R-squared

0.966

type

hyperbolic

Operator History (from monthly production reports)

2023-08 — 2026-07 MARATHON OIL EF LLC 36 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC224,0002023-04-20