MCCOY UNIT

Oil · District 2 · Lease #9994

Operator: MARATHON OIL EF LLC

Cum Oil

524k BBL

Cum Gas

0 MCF

Wells

7

Production

2011-03 — 2015-04

Peak Month

2013-06

Production History

Cum Oil: 523,671 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

60,061 BBL/mo

Di (annual)

666.0%

b-factor

1.5

EUR

1,504,649 BBL

R-squared

0.845

type

hyperbolic

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HMARATHON OIL EF LLC219,3142013-01-22
6HMARATHON OIL EF LLC117,5002013-01-18
4HMARATHON OIL EF LLC118,0002012-10-25
5HMARATHON OIL EF LLC118,0002012-10-25
2HMARATHON OIL EF LLC119,9002012-07-16
3HMARATHON OIL EF LLC119,7002012-07-16
1HMARATHON OIL EF LLC213,5002010-10-27
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