BEST-BEARD UNIT

Oil · District 2 · Lease #10408

Operator: MARATHON OIL EF LLC

Cum Oil

928k BBL

Cum Gas

0 MCF

Wells

4

Production

2012-12 — 2026-03

Peak Month

2013-03

Production History

Cum Oil: 928,010 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

50,822 BBL/mo

Di (annual)

96.4%

b-factor

0.4

EUR

1,042,794 BBL

R-squared

0.857

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HMARATHON OIL EF LLC116,5002012-08-08
3HMARATHON OIL EF LLC116,5002012-08-07
1HMARATHON OIL EF LLC117,0002012-07-12
2HMARATHON OIL EF LLC117,0002012-07-11
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