TURNBULL UNIT A

Oil · District 2 · Lease #9596

Operator: MARATHON OIL EF LLC

Cum Oil

645k BBL

Cum Gas

0 MCF

Wells

9

Production

2010-12 — 2026-03

Peak Month

2010-12

Production History

Cum Oil: 644,944 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

22,685 BBL/mo

Di (annual)

84.8%

b-factor

0.3

EUR

457,737 BBL

R-squared

0.668

type

hyperbolic

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC516,8542013-08-27
1HMARATHON OIL EF LLC416,9462013-07-03
10HMARATHON OIL EF LLC217,0002012-08-09
16HMARATHON OIL EF LLC216,0002012-07-17
11HMARATHON OIL EF LLC214,0002012-07-10
4HMARATHON OIL EF LLC313,5002011-12-02
3HHILCORP ENERGY COMPANY212,5002011-09-13
6HHILCORP ENERGY COMPANY113,5002011-02-01
5HHILCORP ENERGY COMPANY113,5002011-01-05
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