MAUCH-KRUEGER UNIT

Oil · District 01 · Lease #15687

Operator: MARATHON OIL EF LLC

Cum Oil

145k BBL

Cum Gas

179k MCF

casinghead

Wells

1

Production

2011-11 — 2025-04

Peak Month

2011-11

Production History

Cum Oil: 144,925 BBL Cum Gas: 178,848 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,785 BBL/mo

Di (annual)

295.2%

b-factor

1.3

EUR

153,642 BBL

R-squared

0.613

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC113,5002011-08-12