BARNHART (EF) J

Oil · District 1 · Lease #17483

Operator: MARATHON OIL EF LLC

Cum Oil

1.3M BBL

Cum Gas

0 MCF

Wells

4

Production

2013-11 — 2026-03

Peak Month

2014-05

Production History

Cum Oil: 1,267,564 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

63,374 BBL/mo

Di (annual)

214.4%

b-factor

0.7

EUR

998,604 BBL

R-squared

0.883

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HMARATHON OIL EF LLC120,4002013-10-17
1HMARATHON OIL EF LLC120,1002013-09-27
2HMARATHON OIL EF LLC220,3002013-09-27
3HMARATHON OIL EF LLC220,4002013-09-26
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