HOLLUB UNIT

Oil · District 01 · Lease #15722

Operator: MARATHON OIL EF LLC

Cum Oil

105k BBL

Cum Gas

159k MCF

casinghead

Wells

1

Production

2011-07 — 2026-01

Peak Month

2012-11

Production History

Cum Oil: 105,352 BBL Cum Gas: 158,716 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,740 BBL/mo

Di (annual)

161.7%

b-factor

0.9

EUR

105,467 BBL

R-squared

0.730

type

hyperbolic

Operator History (from monthly production reports)

2011-11 — 2026-07 MARATHON OIL EF LLC 177 mo
2011-07 — 2011-10 HILCORP ENERGY COMPANY 4 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC113,5002011-05-11