YOSKO UNIT

Oil · District 2 · Lease #9848

Operator: MARATHON OIL EF LLC

Cum Oil

1.1M BBL

Cum Gas

0 MCF

Wells

4

Production

2011-04 — 2026-03

Peak Month

2014-12

Production History

Cum Oil: 1,129,962 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

66,954 BBL/mo

Di (annual)

180.8%

b-factor

0.6

EUR

1,035,110 BBL

R-squared

0.952

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HMARATHON OIL EF LLC219,5002014-07-15
2HMARATHON OIL EF LLC218,8002013-09-23
3HMARATHON OIL EF LLC219,5002013-09-23
1HMARATHON OIL EF LLC213,5002010-11-16
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