BARNHART (EF) G

Oil · District 01 · Lease #17334

Operator: MARATHON OIL EF LLC

Cum Oil

1.3M BBL

Cum Gas

3.1M MCF

casinghead

Wells

7

Production

2013-12 — 2026-04

Peak Month

2019-06

Production History

Cum Oil: 1,324,299 BBL Cum Gas: 3,136,022 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

112,710 BBL/mo

Di (annual)

519.5%

b-factor

0.9

EUR

1,187,910 BBL

R-squared

0.879

type

hyperbolic

Operator History (from monthly production reports)

2013-12 — 2026-07 MARATHON OIL EF LLC 152 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HMARATHON OIL EF LLC220,0002018-12-31
6HMARATHON OIL EF LLC220,0002018-08-31
2HMARATHON OIL EF LLC118,3002016-08-24
3HMARATHON OIL EF LLC118,3002016-08-24
4HMARATHON OIL EF LLC118,3002016-08-24
1HMARATHON OIL EF LLC118,3002016-08-23
5HMARATHON OIL EF LLC118,4002013-10-08