FRANSEN UNIT

Oil · District 02 · Lease #10636

Operator: MARATHON OIL EF LLC

Cum Oil

1.2M BBL

Cum Gas

3.4M MCF

casinghead

Wells

6

Production

2013-06 — 2026-04

Peak Month

2014-02

Production History

Cum Oil: 1,159,475 BBL Cum Gas: 3,361,451 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

35,759 BBL/mo

Di (annual)

104.7%

b-factor

0.7

EUR

1,077,933 BBL

R-squared

0.763

type

hyperbolic

Operator History (from monthly production reports)

2013-06 — 2026-07 MARATHON OIL EF LLC 158 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HMARATHON OIL EF LLC118,0002018-06-25
2HMARATHON OIL EF LLC119,3002013-04-26
4HMARATHON OIL EF LLC119,0002013-04-26
5HMARATHON OIL EF LLC116,5002013-04-26
1HMARATHON OIL EF LLC119,5002013-04-25
3HMARATHON OIL EF LLC118,6502013-04-17