MAUCH-TOM UNIT

Oil · District 01 · Lease #15685

Operator: MARATHON OIL EF LLC

Cum Oil

127k BBL

Cum Gas

135k MCF

casinghead

Wells

1

Production

2011-10 — 2025-11

Peak Month

2011-11

Production History

Cum Oil: 127,182 BBL Cum Gas: 134,844 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,308 BBL/mo

Di (annual)

95.1%

b-factor

0.5

EUR

128,533 BBL

R-squared

0.846

type

hyperbolic

Operator History (from monthly production reports)

2011-10 — 2026-07 MARATHON OIL EF LLC 178 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC113,5002011-08-30