HEDTKE-HENKE UNIT

Oil · District 02 · Lease #10029

Operator: MARATHON OIL EF LLC

Cum Oil

836k BBL

Cum Gas

1.5M MCF

casinghead

Wells

5

Production

2012-04 — 2026-04

Peak Month

2023-08

Production History

Cum Oil: 836,278 BBL Cum Gas: 1,469,803 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,878 BBL/mo

Di (annual)

718.9%

b-factor

1.5

EUR

546,717 BBL

R-squared

0.511

type

hyperbolic

Operator History (from monthly production reports)

2012-04 — 2026-07 MARATHON OIL EF LLC 172 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HMARATHON OIL EF LLC126,0002023-01-19
5HMARATHON OIL EF LLC126,0002023-01-19
2HMARATHON OIL EF LLC118,8002014-08-05
3HMARATHON OIL EF LLC118,8002014-08-05
1HMARATHON OIL EF LLC214,5002013-02-13