PFEIFER-WHITLEY MEJOR SA

Oil · District 02 · Lease #12731

Operator: MARATHON OIL EF LLC

Cum Oil

167k BBL

Cum Gas

323k MCF

casinghead

Wells

1

Production

2023-11 — 2026-04

Peak Month

2024-04

Production History

Cum Oil: 166,792 BBL Cum Gas: 323,321 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

10,794 BBL/mo

Di (annual)

98.1%

b-factor

0.0

EUR

132,151 BBL

R-squared

0.516

type

exponential

Operator History (from monthly production reports)

2023-11 — 2026-07 MARATHON OIL EF LLC 33 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC118,0002023-07-28