CHAPMAN ROTHE UNIT

Oil · District 01 · Lease #15604

Operator: MARATHON OIL EF LLC

Cum Oil

872k BBL

Cum Gas

1.2M MCF

casinghead

Wells

6

Production

2011-05 — 2026-04

Peak Month

2017-05

Production History

Cum Oil: 871,649 BBL Cum Gas: 1,197,254 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

45,599 BBL/mo

Di (annual)

183.2%

b-factor

0.7

EUR

830,040 BBL

R-squared

0.811

type

hyperbolic

Operator History (from monthly production reports)

2011-11 — 2026-07 MARATHON OIL EF LLC 177 mo
2011-05 — 2011-10 HILCORP ENERGY COMPANY 6 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HMARATHON OIL EF LLC216,5002016-12-02
6HMARATHON OIL EF LLC216,5002016-12-02
7HMARATHON OIL EF LLC216,5002016-12-02
2HMARATHON OIL EF LLC216,5002016-11-02
3HMARATHON OIL EF LLC116,5002016-11-02
1HMARATHON OIL EF LLC213,5002011-02-09