DEATLEY-HOLLUB UNIT

Oil · District 01 · Lease #15673

Operator: MARATHON OIL EF LLC

Cum Oil

651k BBL

Cum Gas

831k MCF

casinghead

Wells

5

Production

2011-10 — 2026-03

Peak Month

2014-11

Production History

Cum Oil: 650,900 BBL Cum Gas: 830,772 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,659 BBL/mo

Di (annual)

71.4%

b-factor

0.2

EUR

602,174 BBL

R-squared

0.701

type

hyperbolic

Operator History (from monthly production reports)

2011-11 — 2026-07 MARATHON OIL EF LLC 177 mo
2011-10 — 2011-10 HILCORP ENERGY COMPANY 1 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC116,0002014-07-28
3HMARATHON OIL EF LLC116,0002014-07-28
4HMARATHON OIL EF LLC116,0002014-07-28
5HMARATHON OIL EF LLC116,0002014-07-28
1HMARATHON OIL EF LLC113,5002011-08-29